US20020061385A1 - Composite extrusion - Google Patents

Composite extrusion Download PDF

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Publication number
US20020061385A1
US20020061385A1 US09/192,031 US19203198A US2002061385A1 US 20020061385 A1 US20020061385 A1 US 20020061385A1 US 19203198 A US19203198 A US 19203198A US 2002061385 A1 US2002061385 A1 US 2002061385A1
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United States
Prior art keywords
polymeric material
extrusion
composite extrusion
thermosetting
thermoplastic
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US09/192,031
Inventor
John Edward Cook
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METZELER AUTOMOTIVE PROFILE SYSTEMS (UK) Ltd
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John Edward Cook
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Application filed by John Edward Cook filed Critical John Edward Cook
Priority to US09/192,031 priority Critical patent/US20020061385A1/en
Publication of US20020061385A1 publication Critical patent/US20020061385A1/en
Assigned to METZELER AUTOMOTIVE PROFILE SYSTEMS (UK) LIMITED reassignment METZELER AUTOMOTIVE PROFILE SYSTEMS (UK) LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SCHLEGEL (UK) HOLDINGS LIMITED
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/15Sealing arrangements characterised by the material
    • B60J10/16Sealing arrangements characterised by the material consisting of two or more plastic materials having different physical or chemical properties
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/07Flat, e.g. panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154Coating solid articles, i.e. non-hollow articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/154Coating solid articles, i.e. non-hollow articles
    • B29C48/155Partial coating thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/30Extrusion nozzles or dies
    • B29C48/304Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/15Sealing arrangements characterised by the material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/15Sealing arrangements characterised by the material
    • B60J10/17Sealing arrangements characterised by the material provided with a low-friction material on the surface
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/20Sealing arrangements characterised by the shape
    • B60J10/24Sealing arrangements characterised by the shape having tubular parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/20Sealing arrangements characterised by the shape
    • B60J10/24Sealing arrangements characterised by the shape having tubular parts
    • B60J10/246Sealing arrangements characterised by the shape having tubular parts having projections, e.g. ribs, within the tubular parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/20Sealing arrangements characterised by the shape
    • B60J10/26Sealing arrangements characterised by the shape characterised by the surface shape
    • B60J10/265Sealing arrangements characterised by the shape characterised by the surface shape the surface being primarily decorative
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/30Sealing arrangements characterised by the fastening means
    • B60J10/32Sealing arrangements characterised by the fastening means using integral U-shaped retainers
    • B60J10/33Sealing arrangements characterised by the fastening means using integral U-shaped retainers characterised by the configuration of the retaining lips
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/70Sealing arrangements specially adapted for windows or windscreens
    • B60J10/74Sealing arrangements specially adapted for windows or windscreens for sliding window panes, e.g. sash guides
    • B60J10/76Sealing arrangements specially adapted for windows or windscreens for sliding window panes, e.g. sash guides for window sashes; for glass run channels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J10/00Sealing arrangements
    • B60J10/80Sealing arrangements specially adapted for opening panels, e.g. doors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/22Articles comprising two or more components, e.g. co-extruded layers the components being layers with means connecting the layers, e.g. tie layers or undercuts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2301/00Use of unspecified macromolecular compounds as reinforcement
    • B29K2301/10Thermosetting resins
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/2419Fold at edge
    • Y10T428/24198Channel-shaped edge component [e.g., binding, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/29Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2902Channel shape
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31678Of metal
    • Y10T428/31707Next to natural rubber
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/31504Composite [nonstructural laminate]
    • Y10T428/31855Of addition polymer from unsaturated monomers
    • Y10T428/31909Next to second addition polymer from unsaturated monomers
    • Y10T428/31913Monoolefin polymer
    • Y10T428/31917Next to polyene polymer

Definitions

  • the present invention relates to methods of manufacturing composite extrusions and to extrusions manufactured by the methods.
  • a portion of the main body of the extrusion is comprised of an extruded thermosetting polymer and a further portion of the extrusion comprises a thermoplastic polymer bonded to the thermosetting material.
  • the further portion may be a surface portion, or be located within the extrusion.
  • a rubber extrusion wherein a coating of low friction polymer such as PTFE is applied to the surface of the extruded section by means of adhesive or spraying to reduce the frictional resistance of the extrusion.
  • a coating of low friction polymer such as PTFE
  • PTFE low friction polymer
  • the surface layer be applied by means of spraying or adhesive it is extremely difficult to obtain a satisfactory bond between the rubber and the surface coating, and the sprayed on coating is liable to cracking and crazing in use, whereas the adhered layer is liable to peeling off.
  • the main body of the extrusion may be formed of a relatively inexpensive rubber polymer and the surface of a different rubber polymer having desired characteristics.
  • such extrusions are difficult to produce and when the surface polymer is to be of a different color from the main body of the extrusion, it is almost impossible to maintain color quality and to match the color with another color because of the tendency for coextruded rubber polymers to run together and merge.
  • a colored rubber door seal comprising a sealing portion of sponge rubber and a U-shaped trim or edge gripping portion of solid rubber with a metal carrier insert, there being a colored solid rubber layer overlying the trim portion and a part of the sealing portion.
  • the problems associated with GB-A-154S511 are also associated with this product.
  • thermosetting polymeric materials in the form of window channels or sealing “trips and to incorporate into the thermosetting elastomer material a second polymeric material of low coefficient of friction which migrates to the surface of the extru ⁇ ion to reduce its surface coefficient of friction.
  • Such products suffer from the disadvantage that they are principally formed of relatively expensive thermoplastics material.
  • a weatherseal comprising a semi-rigid base member of polypropylene, a tubular sealing member of thermoplastic elastomer and a thin film of polypropylene, or a blend of polypropylene and thermoplastic elastomer, capping all or part of the tubular sealing member.
  • the product is formed as a single extrusion, and the film provides a low friction contact surface to the thermoplastic elastomer sealing member which is resilient and compliant over a wide range of temperatures. Again, the extrusion is formed of expensive thermoplastic materials.
  • U.S. Pat. No. 4,676,856 discloses an extruded door seal which incorporates a thermoplastics polymeric carrier in place of the traditional metal carrier, around which a thermosetting polymer (rubber) is extruded. After extrusion the product is heated to cure the rubber and is then cooled so that the carrier becomes brittle so that it can be fractured along predetermined fracture lines to impart flexibility into the product, whereupon the product is heated in such a way that the carrier becomes soft again so that it can be formed into its required U-shape.
  • the door seal disclosed in this specification is primarily formed of rubber, it is expensive to manufacture due to the several stages in the manufacturing process.
  • thermosetting material which have different extrusion temperatures, whereupon the resultant profile is cooled to below the softening point of the thermoplastics material, whereupon the thermosetting material is vulcanised.
  • thermosetting and thermoplastics materials there are disclosures of bonding thermosetting and thermoplastics materials together, in which a vulcanised blended thermosetting material has a thermoplastics elastomeric blend fused therewith. Because both polymers are blends, it is believed that a chemical bond occurs between the two polymers. The blended polymers are expensive and time consuming to produce.
  • JP-A-49130470 there is a disclosure of coating a rubber tube with a thermoplastic blended co-polymer. The methods of achieving a satisfactory bond using extrusion techniques are not detailed.
  • sealing strips with a semi-rigid base member formed for example of impregnated paper by means of which the strip is secured for example to a window frame, there being a flexible polyurethane foam bead projecting centrally from the base member with the whole being encapsulated in a sheath of polyethylene film by a continuous molding process.
  • This product is marketed under our Registered Trade Mark Q-lon.
  • the present invention seeks to provide methods of manufacturing composite extrusions which are suitable for use as a door or boot seal in the motor industry or as a seal or window channel either in the building or motor industry, or for other purposes and which is principally formed of a vulcanised polymeric material (thermosetting/cross linked/rubber) (hereinafter called thermosetting polymeric material), which is considerably less expensive than the majority of suitable thermoplastics polymeric materials (plastics).
  • thermosetting polymeric material thermosetting/cross linked/rubber
  • thermosetting polymeric material thermosetting/cross linked/rubber
  • thermosetting polymeric materials consisting at least principally of one or more thermosetting polymeric materials and at least one other portion consisting of a thermoplastic polymeric material
  • a method of forming a composite extrusion having a main body portion consisting at least principally of one or more thermosetting polymeric materials and at least one other portion consisting of a thermoplastic polymeric material, comprising the steps of passing said one or more thermosetting materials through an extruder to form said main body portion, at least partially curing said body portion, maintaining said body portion at an elevated temperature, passing the same, while hot, through a further extruder and extruding said thermoplastic material onto a portion thereof, thereby bonding the two materials together, and then cooling the composite extrusion, and forming it into the desired cross-sectional shape.
  • thermosetting polymeric material comprising a main body formed at least principally of an extruded thermosetting polymeric material with at least one portion of the extrusion being formed of a thermoplastic polymer material bonded to the thermosetting material using a method as described above, wherein the thermoplastics material is on a surface of the composite extrusion, and of a chosen color.
  • thermosetting extrusion is passed through a hot curing station, partially to cure it, it is temporarily formed into a special shape for receiving thermoplastics material, and while it is still hot from the curing step and only partially cured, it has the thermoplastics material extruded onto it.
  • thermoplastics material is to be provided on a surface of the thermosetting material, then the exposed surfaces of the thermoplastics material must be cooled, where upon the composite extrusion is passed through a forming die and the extrusion is cooled further so as to form it into its final cross-sectional shape.
  • thermoplastics material is to be located other than on the surface of the thermosetting material, then immediately after the second extrusion operation, and prior to any cooling step, one or more edge regions of the thermosetting material are folded into contact with the exposed surface of the thermoplastics material, so that they will bond thereto, whereupon the extrusion is shaped and formed and cooled.
  • the temperature within the extruder for the thermosetting material is within the range of 40° C. to 100° C. and the temperature within the curing bed is within the range of 180° C. to 250° C., with the extrusion exiting from the bed at a temperature within the range of 150° C. to 250° C.
  • the temperature within the extruder for the thermoplastic material is within the range of 140° C. to 250° C.
  • the temperature of the extrusion should be below about 40° C.
  • thermosetting polymeric materials used in the composite extrusion are compatible with the thermoplastic polymeric materials.
  • Some of the thermoplastic materials which can be used are polyethylene, polypropylene, or ethylene vinyl acetate. These can be modified with EPDM or butyl compounds and cross-lined by peroxides or moisture or W and other systems. The usual range of fillers and extenders like calcium carbonate, mica, talc and plasticisers can also be incorporated therein.
  • Suitable vulcanised or cross-linked (thermosetting) polymeric materials are EPDM, EPDM modified with chorobutyl, nitrile modifed EPDM, polyethylene, ethylene vinyl acetate or polypropylene.
  • the polyethylene, polypropylene or ethylene vinyl acetate can be modified with EPDM or butyl compounds and cross-linked by peroxides or moisture or W and other systems; the polymers can include the usual range of fillers and extenders like calcium carbonate, mica, talk and plasticisers. It is preferred that the thermosetting material is a cured EPDM rubber and that the thermoplastics material is an EPDM modified polypropylene.
  • FIG. 1 is a block diagram showing the steps in the process of manufacture of a composite extrusion having a surface portion different from the main body of the extrusion;
  • FIG. 2A shows a typical extrusion of thermosetting material in the form it emerges from the extruder, and after it has been partly cured;
  • FIG. 2B shows the extrusion of FIG. 2A deformed ready for a surface layer of thermoplastic material to be extruded thereon;
  • FIG. 2C shows the final shape of the extrusion ready for use, after shaping and cooling, to provide a first embodiment of the invention
  • FIGS. 3A to 3 C, 4 A to 4 C, and 5 A to 5 C show, respectively, three stages in the formation of three different versions of an alternative embodiment of the invention.
  • FIG. 6 is a cross-section through an alternative embodiment of composite extrusion.
  • a strip 1 which will eventually become a vehicle window guide channel is extruded from a thermosetting polymeric material such as EPDM in a traditional “rubber” 0 extruder 3 (the first extruder) to have the general shape as shown in FIG. 2A.
  • This rubber extrusion step is carried out at a temperature in the range of about 80° C. to 150° C. using state of the art equipment and techniques.
  • the strip 1 is passed through a standard curing tunnel 5 where it is supported on a fluidised bed of hot glass beads; the vulcanised extrusion emerges from the tunnel 5 in a semi-cured state, and at a temperature within the range of 180° C. to 250° C.
  • thermoplastics material 8 ideally EPDM modified polypropylene
  • the composite extrusion is passed through a cooling station 19 partially to cool the exposed surfaces of the thermoplastics material, so that the surfaces are no longer tacky, and the extrusion is then fed into a forming and cooling die 17 , where it is folded from its “opened out” state of FIG. 2B into the shape shown in FIG. 2C.
  • the extrusion is then held in this position, and cooled virtually to room temperature, so that it will be formed into its required final shape shown in FIG. 2C.
  • the strip To use the strip, it is located in a groove in a vehicle door or door frame by a retention part 20 , and is held by the walls of the groove in the position shown in FIG. 2C.
  • the strip is designed to act as a guide for a sliding window, with the edge region of the glass being located between the strips of thermoplastics material 8 which are firmly bonded to the surfaces 9 , 13 and 15 , and its edge abutting the material 8 on the surface 11 .
  • the portions 8 are formed of a different thermoplastics material which can be of any desired color (e.g. to color match a vehicle's paintwork) and can have the more rigid, and more slippery porperties requied to locate an edge region of a vehicle window.
  • the portions 8 on the surfaces 9 and 15 will be biassed into sealing engagement with the glass, due to the resilient nature of the strip 1 on which the portions 8 are supported.
  • a generally U-shaped edge trim is formed in a modified first rubber extruder, the edge trim having a U-shaped body 70 formed of EPDM, SBR, a blend of the two, natural rubber, neoprene or another thermosetting material, the body having formed integral therewith a plurality of small and large flange gripper fins 72 of any desired number and configuration, a hollow sealing bulb 74 , a flap seal 7 S, and a secondary seal 76 with subsidiary sealing fin 78 .
  • the bulb 74 , seal 76 and fin 78 are formed of a foamed rubber in known manner, and the tip 80 of the outermost one of the larger of the fins 72 may also be foamed.
  • a metal carrier 82 Located within the U-shaped body is a metal carrier 82 , which may be of known construction (e.g. knitted wire, or slotted or stamped metal).
  • the technology to extrude the combined U-shaped edge trim with integral sealing bulb 74 is known and after it has been passed through a curing bed 5 , the vulcanised rubber extrusion, while still hot, is then passed through a second extruder, so that a layer of thermoplastics material 84 can be extrusion coated onto what will be the exposed face of the edge trim.
  • the temperature in the rubber extruder should be in the region of 100° C.
  • the curing bed can be a fluidsed bed, or microwave oven, or salt bath, or hot air, at a temperature of around 205° C., and after being hauled from the first extruder and washed, it is passed through the second extruder where the thermoplastics material is extruded onto it at a temperature in the range of 120° C. to 180° C.
  • the thermoplastics material can be of any desired color, and after being cooled, it can be “post formed” to the required profile, and/or embossed if required. Furthermore, after cooling, a high gloss coating can be sprayed onto the thermoplastics material to improve its surface appearance, and its scuff resistance.
  • thermoplastics material may be a blend of 90% Santoprene/10% polypropylene (or in any other ratio), or 100% Ethylene Vinyl Acetate (EVA), or a blend of the two.
  • FIG. 3A shows an extrusion of a thermosetting material somewhat equivalent to that shown in FIG. 2A but of an entirely different product and having a flap seal 21 and a securing portion 23 which as is the case with the construction shown in FIG. 2A, is initially extruded from a thermosetting material in an “opened out” form.
  • a conventional rubber extruder such as the extruder 3 shown in FIG. 1
  • the rubber extrusion is partly cured using a standard curing technique such as a curing bed 5 , whereupon, as is the case in FIG.
  • thermoplastic elastomer reinforcement strip 25 is extruded onto a main part 27 of the securing portion 23 , while the latter is still hot, so as to form a firm bond therewith using a second plastics extruder 7 .
  • the composite extrusion shown in FIG. 3B is then passed through a forming and cooling die 19 without first being cooled so as to cause arm portions 29 and 31 which are formed of thermosetting material to be moved from their opened out position shown in FIG. 3A and 3B to a folded in position in abutting relationship with the exposed surface of the thermoplastic material 25 , as shown in FIG. 3C.
  • the forming operation performed by the forming and cooling die 19 is performed at an elevated temperature prior to any cooling step so that the inner face at least of the arms 29 and 31 and the outer face of the thermoplastic material 25 will still be hot so that when the faces are brought into abutting relationship with each other, they will bond together.
  • the temperature of the die is reduced, thus cooling the composite extrusion to a temperature in the region of 40° C. so as to maintain the extrusion in the form illustrated in FIG. 3C.
  • the characteristics of the securing portion 23 can be modified as required. For example, by choosing a polymer which at a temperature of about 40° C. is semi-rigid, the otherwise resiliently deformable securing portion 23 can be considerably stiffened.
  • FIGS. 4A to 4 C and SA to SC Two alternative constructions of the second embodiment of the invention are illustrated in FIGS. 4A to 4 C and SA to SC respectively and component parts of the extrusions shown in these Figures which correspond with component parts in FIGS. 3A to 3 C bear the same reference numerals.
  • the seal shown therein really only differs from that of FIGS. 3A to 3 C in that it has a flap seal 41 and a subsidiary flap seal 43 instead of the flap seal 21 , and in that the main body 23 is generally U-shaped.
  • a thermoplastic strip of material 45 is extruded onto the previously extruded body 23 of thermosetting material but, in this case, it extends beyond the body 23 and terminates in an enlarged locking head 47 , and only one arm 49 is provided which is folded over the hot extruded strip of thermoplstic material 45 while it is still hot so as to form a bond therewith.
  • the extrusion shown in FIGS. 5A to SC has a final shape as shown in FIG. 5C and is intended to be used as a combined edge trim and door seal for fitting on a flange around a door opening on a motor car.
  • the extrusion has a generally U-shaped flange gripping body portion 53 formed of thermosetting polymeric material and a hollow sealing portion 54 also formed of a thermosetting polymeric material which may be softer than the material of the flange gripping portion 53 . This can be achieved by using the same thermosetting material, but foaming it.
  • the first stage in the formation of the composite extrusion is not illustrated in the drawings, but it comprises the extruding of the thermosetting body portion 53 and sealing portion 54 in a single extrusion step using a first rubber extruder, but with the body portion 53 being in an opened out state and having a generally flat base 55 , with arm portions 57 and 59 extending from the edge regions of the base portion 55 and extending at an angle of about 80° thereto, both on the same side of the base portion 55 .
  • a pair of spaced gripping fins 61 extends outwardly from the arm 57 and a further pair of spaced gripping fins 63 extends outwardly from the arm 59 , the fins 63 being somewhat thicker and less deformable than the fins 61 .
  • the general shape of the first extrusion of thermosetting material is shown in FIG. 5A, but FIG. 5A shows the extrusion after it has been passed through a curing station and largely cured and after a strip of thermoplastic material 25 has been extruded onto the face of the flat base 55 so as completely to cover the face between the arms 57 and 59 .
  • This extrusion step is performed by a second, plastics extruder while the thermosetting material is still hot, so that the thermoplastic material 25 will bond to the face of the base 55 and is equivalent to the steps shown in FIGS. 3B and 4B of the previous ver ⁇ ions of the invention.
  • the partially formed composite extrusion is passed through a forming and cooling die which progressively forms the extrusion into the shape shown in FIG. 5B and then on into the final shape shown in FIG. 5C.
  • a forming and cooling die which progressively forms the extrusion into the shape shown in FIG. 5B and then on into the final shape shown in FIG. 5C.
  • FIGS. 3A to 3 C, 4 A to 4 C and 5 A to 5 C are provided with an internal reinforcement or stiffened carrier 25 which is non-metallic but which, by choosing the correct material, can have strenthening and stiffening properties normally associated with a metal carrier, but which does not have the undesirable properties of a metal carrier, namely a relatively high weight and a tendency to rust.
  • thermosetting extrusion instead of only partially curing the thermosetting extrusion, it can be normally cured and reeled, and in a subsequent operation, it can be heated to a temperature within the range of about 180° C. to 250° C., and then be passed into the further extruder to have the thermoplastic material extruded onto it; the final steps would then be undertaken in a similar manner to those described with reference to the drawings. It has been found that a satisfactory bond can be achieved by taking a reeled thermosetting extrusion extruded up to two weeks earlier, provided it is heated adequately before passing it into the second, plastics extruder.
  • this invention enables a rubber extrusion to be matched to the interior of an automobile or the exterior paintwork of an automobile, or to the interior or exterior decor of a building by extruding a thermoplastics material onto its surface.
  • a cross-linked thermosetting polymeric material is necessary for the main body of the weatherstrip.
  • the invention described eliminates several stages of the combining process through the ability to extrude a decorative thermoplastic film directly onto a rubber extrudate, thereby giving a cheaper product, simpler manufacturing process, and reduced floor space useage.
  • thermoplastics material is located internally of the thermosetting material, which by choice of a suitable thermoplastics material, can act as a stiffener, and replace the traditional metal carrier provided for stiffening purposes.
  • thermoplastics material When the thermoplastics material is to be located on the surface of the composite extrusion, it is preferred that its stiffness or hardness (or flexibility) should approximately match that of the thermosetting material, and be in the region of Shore-A 70° to Shore-A 55°. However, when it is to be located within the thermosetting material in the end product, it would normally be stiffer or harder than the thermosetting material, and could have a hardness in the region of Shore-D 50° to Shore-D 60°.

Abstract

A method of forming a composite extrusion is disclosed wherein a main body portion (1) of the extrusion is first extruded from a thermosetting material, this body portion then being heated so as at least partly to cure it, the main body portion then being passed at high temperature through a further extruder where a thermoplastics material (8) is extruded onto one or more surfaces of the main body portion (˜), the subsequent composite extrusion then being cooled and formed into its final shape. It is important that the combining step be undertaken at a temperature high enough to cause the thermoplastics material to bond to the thermosetting material and while it is simplest for the thermoplastics material to be on an outer surface of the composite extrusion, it is possible for it to be located within the thermosetting material by extruding the thermosetting material in an “opened out” state and then after extruding the thermoplastics and while the extrusion is still hot, folding in edge regions of the main body to overlie the thermoplastics material and bond thereto. The thermoplastics material may be of a special color, may be embossed, and if it is located within the thermosetting material in the end product, may be stiffer than the latter. The invention also extends to the extrusions themselves.

Description

  • The present application is a divisional of Ser. No. 08/914,639 filed Aug. 19, 1997 which is a divisional of Ser. No. 08/714,031 filed Sept. 12, 1996 which is a continuation of Ser. No. 398,303; filed Mar. 3, 1995, abandoned, which is a continuation of Ser. No. 97, 180; filed Jul. 23, 1993, U.S. Pat. No. 5,411,785, which is a continuation of Ser. No. 439,790; filed Nov. 21, 1989, abandoned.[0001]
  • BACKGROUND OF THE INVENTION
  • The present invention relates to methods of manufacturing composite extrusions and to extrusions manufactured by the methods. In such extrusions, a portion of the main body of the extrusion is comprised of an extruded thermosetting polymer and a further portion of the extrusion comprises a thermoplastic polymer bonded to the thermosetting material. The further portion may be a surface portion, or be located within the extrusion. [0002]
  • In the motor and building industries, it is common practice to extrude sealing sections either from a black thermosetting polymeric material which incorporates one or more fillers to reduce the cost of the extrusion or from a more expensive thermoplastics material. However, in each case, there is often a requirement for the extrusion to have its characteristics changed. For example, in order to stiffen up the polymeric material of a U-sectioned edge trim or door seal, a metallic carrier is incorporated within the extrusion. Alternatively (or additionally) a second polymeric material can be co-extruded with the first polymeric material. This is relatively easy with expensive thermoplastics polymers but not with thermosetting polymers. Hence, there is a requirement for rubber technologists to produce special rubbers which are compatible with and therefore competitive with the harder more expensive thermoplastics materials. For example, there is a requirement in both the motor and building industries for rubber extrusions to be provided which color match motor car paintwork and/or upholstery in the one case and which color match window frames and the like in the other, or which have a special decorative surface, or which have surface characteristics different from those of the main body of the extrusion. [0003]
  • It is also known to stiffen or reinforce internally thermosetting elastomer extrusions by using metal carriers. These are extremely satisfactory, but the metallic carrier is heavy and can rust, and is relatively expensive to manufacture. [0004]
  • There is therefore an ongoing requirement for providing a more satisfactory, less expensive product. [0005]
  • In GB-A-2109042 a rubber extrusion is disclosed wherein a coating of low friction polymer such as PTFE is applied to the surface of the extruded section by means of adhesive or spraying to reduce the frictional resistance of the extrusion. With many surface coatings, which are normally very thin, it is difficult and sometimes impossible to maintain a quality check on the extrusion and it is almost impossible to measure with instruments whether the coating is present or not. Furthermore, whether the surface layer be applied by means of spraying or adhesive, it is extremely difficult to obtain a satisfactory bond between the rubber and the surface coating, and the sprayed on coating is liable to cracking and crazing in use, whereas the adhered layer is liable to peeling off. [0006]
  • It is also known from GB-A-1545511 to co-extrude two different rubber materials so that the outer surface of the extrusion is different from the main body of the extrusion. For example, the main body of the extrusion may be formed of a relatively inexpensive rubber polymer and the surface of a different rubber polymer having desired characteristics. Unfortunately, however, such extrusions are difficult to produce and when the surface polymer is to be of a different color from the main body of the extrusion, it is almost impossible to maintain color quality and to match the color with another color because of the tendency for coextruded rubber polymers to run together and merge. In any event, it is extremely difficult to clean out the extrusion apparatus satisfactorily when a change of color is required and to co-extrude a particular colored rubber polymer onto a basically black thermosetting polymer base. [0007]
  • In U.S. Pat. No. 4,513,044, a colored rubber door seal is disclosed comprising a sealing portion of sponge rubber and a U-shaped trim or edge gripping portion of solid rubber with a metal carrier insert, there being a colored solid rubber layer overlying the trim portion and a part of the sealing portion. The problems associated with GB-A-154S511 are also associated with this product. [0008]
  • It is also known from EP-A-0200618 and EP-A-0124955 to extrude thermosetting polymeric materials in the form of window channels or sealing “trips and to incorporate into the thermosetting elastomer material a second polymeric material of low coefficient of friction which migrates to the surface of the extru˜ion to reduce its surface coefficient of friction. Such products, however, suffer from the disadvantage that they are principally formed of relatively expensive thermoplastics material. [0009]
  • In U.S. Pat. No. 4,538,380 a weatherseal is disclosed comprising a semi-rigid base member of polypropylene, a tubular sealing member of thermoplastic elastomer and a thin film of polypropylene, or a blend of polypropylene and thermoplastic elastomer, capping all or part of the tubular sealing member. The product is formed as a single extrusion, and the film provides a low friction contact surface to the thermoplastic elastomer sealing member which is resilient and compliant over a wide range of temperatures. Again, the extrusion is formed of expensive thermoplastic materials. [0010]
  • U.S. Pat. No. 4,676,856 discloses an extruded door seal which incorporates a thermoplastics polymeric carrier in place of the traditional metal carrier, around which a thermosetting polymer (rubber) is extruded. After extrusion the product is heated to cure the rubber and is then cooled so that the carrier becomes brittle so that it can be fractured along predetermined fracture lines to impart flexibility into the product, whereupon the product is heated in such a way that the carrier becomes soft again so that it can be formed into its required U-shape. Although the door seal disclosed in this specification is primarily formed of rubber, it is expensive to manufacture due to the several stages in the manufacturing process. [0011]
  • In EP-A-0209453, a method of making a composite extrusion is disclosed which comprises feeding into an extrusion die a thermoplastics material and a thermosetting material which have different extrusion temperatures, whereupon the resultant profile is cooled to below the softening point of the thermoplastics material, whereupon the thermosetting material is vulcanised. [0012]
  • In U.S. Pat. No. 4,537,825 and GB-A-1423541, there are disclosures of bonding thermosetting and thermoplastics materials together, in which a vulcanised blended thermosetting material has a thermoplastics elastomeric blend fused therewith. Because both polymers are blends, it is believed that a chemical bond occurs between the two polymers. The blended polymers are expensive and time consuming to produce. [0013]
  • In JP-A-49130470, there is a disclosure of coating a rubber tube with a thermoplastic blended co-polymer. The methods of achieving a satisfactory bond using extrusion techniques are not detailed. [0014]
  • It is also known to manufacture sealing strips with a semi-rigid base member formed for example of impregnated paper by means of which the strip is secured for example to a window frame, there being a flexible polyurethane foam bead projecting centrally from the base member with the whole being encapsulated in a sheath of polyethylene film by a continuous molding process. This product is marketed under our Registered Trade Mark Q-lon. [0015]
  • SUMMARY OF THE INVENTION
  • The present invention seeks to provide methods of manufacturing composite extrusions which are suitable for use as a door or boot seal in the motor industry or as a seal or window channel either in the building or motor industry, or for other purposes and which is principally formed of a vulcanised polymeric material (thermosetting/cross linked/rubber) (hereinafter called thermosetting polymeric material), which is considerably less expensive than the majority of suitable thermoplastics polymeric materials (plastics). By virtue of the invention, it is possible to produce a wide range of extrusions relatively cheaply but which can either have surface properties of the more expensive extrusions formed of thermoplastic material and/or which can have its properties changed without having to incorporate a metal carrier in the extrusion. [0016]
  • According to one aspect of the present invention, we provide a method of forming a composite extrusion having a main body portion consisting at least principally of one or more thermosetting polymeric materials and at least one other portion consisting of a thermoplastic polymeric material, comprising the steps of passing said one or more thermosetting materials through an extruder to form said main body portion, at least partially curing said body portion, maintaining said body portion at an elevated temperature, passing the same, while hot, through a further extruder and extruding said thermoplastic material onto a portion thereof, thereby bonding the two materials together, and then cooling the composite extrusion, and forming it into the desired cross-sectional shape. [0017]
  • Also according to the present invention, we provide a composite extrusion comprising a main body formed at least principally of an extruded thermosetting polymeric material with at least one portion of the extrusion being formed of a thermoplastic polymer material bonded to the thermosetting material using a method as described above, wherein the thermoplastics material is on a surface of the composite extrusion, and of a chosen color. [0018]
  • Preferably, immediately after the thermosetting extrusion is passed through a hot curing station, partially to cure it, it is temporarily formed into a special shape for receiving thermoplastics material, and while it is still hot from the curing step and only partially cured, it has the thermoplastics material extruded onto it. [0019]
  • If the thermoplastics material is to be provided on a surface of the thermosetting material, then the exposed surfaces of the thermoplastics material must be cooled, where upon the composite extrusion is passed through a forming die and the extrusion is cooled further so as to form it into its final cross-sectional shape. Alternatively, if the thermoplastics material is to be located other than on the surface of the thermosetting material, then immediately after the second extrusion operation, and prior to any cooling step, one or more edge regions of the thermosetting material are folded into contact with the exposed surface of the thermoplastics material, so that they will bond thereto, whereupon the extrusion is shaped and formed and cooled. [0020]
  • Preferably, the temperature within the extruder for the thermosetting material is within the range of 40° C. to 100° C. and the temperature within the curing bed is within the range of 180° C. to 250° C., with the extrusion exiting from the bed at a temperature within the range of 150° C. to 250° C. [0021]
  • Preferably, the temperature within the extruder for the thermoplastic material is within the range of 140° C. to 250° C. By the time the composite extrusion passes out of the forming and cooling die, the temperature of the extrusion should be below about 40° C. [0022]
  • It is obviously important that the thermosetting polymeric materials used in the composite extrusion are compatible with the thermoplastic polymeric materials. Some of the thermoplastic materials which can be used are polyethylene, polypropylene, or ethylene vinyl acetate. These can be modified with EPDM or butyl compounds and cross-lined by peroxides or moisture or W and other systems. The usual range of fillers and extenders like calcium carbonate, mica, talc and plasticisers can also be incorporated therein. Suitable vulcanised or cross-linked (thermosetting) polymeric materials are EPDM, EPDM modified with chorobutyl, nitrile modifed EPDM, polyethylene, ethylene vinyl acetate or polypropylene. The polyethylene, polypropylene or ethylene vinyl acetate can be modified with EPDM or butyl compounds and cross-linked by peroxides or moisture or W and other systems; the polymers can include the usual range of fillers and extenders like calcium carbonate, mica, talk and plasticisers. It is preferred that the thermosetting material is a cured EPDM rubber and that the thermoplastics material is an EPDM modified polypropylene.[0023]
  • Several preferred embodiments of the invention are now described by way of example with reference to the accompanying schematic drawings, in which: [0024]
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a block diagram showing the steps in the process of manufacture of a composite extrusion having a surface portion different from the main body of the extrusion; [0025]
  • FIG. 2A shows a typical extrusion of thermosetting material in the form it emerges from the extruder, and after it has been partly cured; [0026]
  • FIG. 2B shows the extrusion of FIG. 2A deformed ready for a surface layer of thermoplastic material to be extruded thereon; [0027]
  • FIG. 2C shows the final shape of the extrusion ready for use, after shaping and cooling, to provide a first embodiment of the invention; [0028]
  • FIGS. 3A to [0029] 3C, 4A to 4C, and 5A to 5C show, respectively, three stages in the formation of three different versions of an alternative embodiment of the invention, and
  • FIG. 6 is a cross-section through an alternative embodiment of composite extrusion.[0030]
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
  • Referring first to FIGS. 1 and 2, a [0031] strip 1 which will eventually become a vehicle window guide channel is extruded from a thermosetting polymeric material such as EPDM in a traditional “rubber”0 extruder 3 (the first extruder) to have the general shape as shown in FIG. 2A. This rubber extrusion step is carried out at a temperature in the range of about 80° C. to 150° C. using state of the art equipment and techniques. On emerging from the first extruder 3, the strip 1 is passed through a standard curing tunnel 5 where it is supported on a fluidised bed of hot glass beads; the vulcanised extrusion emerges from the tunnel 5 in a semi-cured state, and at a temperature within the range of 180° C. to 250° C.
  • The strip is then opened out into the shape shown in FIG. 2B and passed into a second extruder [0032] 7, where a thermoplastics material 8, ideally EPDM modified polypropylene, is extruded onto surface areas 9, 11, 13 and 15 of the still hot strip 1. Due to the residual heat of the thermosetting material of the strip 1, and due to the fact that the temperature of the thermoplastics material in the extruder 7 is in the range of 140° C. to 250° C., the thermosetting material of the strip 1 and the thermoplastics material 8 bond together.
  • Immediately on emerging from the extruder [0033] 7, the composite extrusion is passed through a cooling station 19 partially to cool the exposed surfaces of the thermoplastics material, so that the surfaces are no longer tacky, and the extrusion is then fed into a forming and cooling die 17, where it is folded from its “opened out” state of FIG. 2B into the shape shown in FIG. 2C. The extrusion is then held in this position, and cooled virtually to room temperature, so that it will be formed into its required final shape shown in FIG. 2C.
  • To use the strip, it is located in a groove in a vehicle door or door frame by a [0034] retention part 20, and is held by the walls of the groove in the position shown in FIG. 2C. The strip is designed to act as a guide for a sliding window, with the edge region of the glass being located between the strips of thermoplastics material 8 which are firmly bonded to the surfaces 9, 13 and 15, and its edge abutting the material 8 on the surface 11.
  • It will of course be appreciated that while the main body of the [0035] strip 1 is formed of a thermosetting black rubber material, the portions 8 are formed of a different thermoplastics material which can be of any desired color (e.g. to color match a vehicle's paintwork) and can have the more rigid, and more slippery porperties requied to locate an edge region of a vehicle window. However, the portions 8 on the surfaces 9 and 15 will be biassed into sealing engagement with the glass, due to the resilient nature of the strip 1 on which the portions 8 are supported.
  • It will be appreciated that the composite extrusion could be of a different cross-section such as shown, for example, in FIG. 6. In this embodiment of the invention, a generally U-shaped edge trim is formed in a modified first rubber extruder, the edge trim having a [0036] U-shaped body 70 formed of EPDM, SBR, a blend of the two, natural rubber, neoprene or another thermosetting material, the body having formed integral therewith a plurality of small and large flange gripper fins 72 of any desired number and configuration, a hollow sealing bulb 74, a flap seal 7S, and a secondary seal 76 with subsidiary sealing fin 78. The bulb 74, seal 76 and fin 78 are formed of a foamed rubber in known manner, and the tip 80 of the outermost one of the larger of the fins 72 may also be foamed. Located within the U-shaped body is a metal carrier 82, which may be of known construction (e.g. knitted wire, or slotted or stamped metal). The technology to extrude the combined U-shaped edge trim with integral sealing bulb 74 is known and after it has been passed through a curing bed 5, the vulcanised rubber extrusion, while still hot, is then passed through a second extruder, so that a layer of thermoplastics material 84 can be extrusion coated onto what will be the exposed face of the edge trim.
  • The temperature in the rubber extruder should be in the region of 100° C., the curing bed can be a fluidsed bed, or microwave oven, or salt bath, or hot air, at a temperature of around 205° C., and after being hauled from the first extruder and washed, it is passed through the second extruder where the thermoplastics material is extruded onto it at a temperature in the range of 120° C. to 180° C. The thermoplastics material can be of any desired color, and after being cooled, it can be “post formed” to the required profile, and/or embossed if required. Furthermore, after cooling, a high gloss coating can be sprayed onto the thermoplastics material to improve its surface appearance, and its scuff resistance. [0037]
  • The thermoplastics material may be a blend of 90% Santoprene/10% polypropylene (or in any other ratio), or 100% Ethylene Vinyl Acetate (EVA), or a blend of the two. [0038]
  • Referring now to FIGS. 3A to [0039] 3C, FIG. 3A shows an extrusion of a thermosetting material somewhat equivalent to that shown in FIG. 2A but of an entirely different product and having a flap seal 21 and a securing portion 23 which as is the case with the construction shown in FIG. 2A, is initially extruded from a thermosetting material in an “opened out” form. After being extruded in a conventional rubber extruder such as the extruder 3 shown in FIG. 1, the rubber extrusion is partly cured using a standard curing technique such as a curing bed 5, whereupon, as is the case in FIG. 2C, a thermoplastic elastomer reinforcement strip 25 is extruded onto a main part 27 of the securing portion 23, while the latter is still hot, so as to form a firm bond therewith using a second plastics extruder 7.
  • In contrast to the embodiment of the invention shown in FIG. 2C, the composite extrusion shown in FIG. 3B is then passed through a forming and cooling die [0040] 19 without first being cooled so as to cause arm portions 29 and 31 which are formed of thermosetting material to be moved from their opened out position shown in FIG. 3A and 3B to a folded in position in abutting relationship with the exposed surface of the thermoplastic material 25, as shown in FIG. 3C. The forming operation performed by the forming and cooling die 19 is performed at an elevated temperature prior to any cooling step so that the inner face at least of the arms 29 and 31 and the outer face of the thermoplastic material 25 will still be hot so that when the faces are brought into abutting relationship with each other, they will bond together. As the extrusion continues through the forming and cooling die, so the temperature of the die is reduced, thus cooling the composite extrusion to a temperature in the region of 40° C. so as to maintain the extrusion in the form illustrated in FIG. 3C. By selecting an appropriate polymer for the thermoplastic material 25, the characteristics of the securing portion 23 can be modified as required. For example, by choosing a polymer which at a temperature of about 40° C. is semi-rigid, the otherwise resiliently deformable securing portion 23 can be considerably stiffened.
  • Two alternative constructions of the second embodiment of the invention are illustrated in FIGS. 4A to [0041] 4C and SA to SC respectively and component parts of the extrusions shown in these Figures which correspond with component parts in FIGS. 3A to 3C bear the same reference numerals.
  • Referring first to FIGS. 4A to [0042] 4C, the seal shown therein really only differs from that of FIGS. 3A to 3C in that it has a flap seal 41 and a subsidiary flap seal 43 instead of the flap seal 21, and in that the main body 23 is generally U-shaped. A thermoplastic strip of material 45 is extruded onto the previously extruded body 23 of thermosetting material but, in this case, it extends beyond the body 23 and terminates in an enlarged locking head 47, and only one arm 49 is provided which is folded over the hot extruded strip of thermoplstic material 45 while it is still hot so as to form a bond therewith.
  • The extrusion shown in FIGS. 5A to SC has a final shape as shown in FIG. 5C and is intended to be used as a combined edge trim and door seal for fitting on a flange around a door opening on a motor car. The extrusion has a generally U-shaped flange gripping [0043] body portion 53 formed of thermosetting polymeric material and a hollow sealing portion 54 also formed of a thermosetting polymeric material which may be softer than the material of the flange gripping portion 53. This can be achieved by using the same thermosetting material, but foaming it.
  • The first stage in the formation of the composite extrusion is not illustrated in the drawings, but it comprises the extruding of the [0044] thermosetting body portion 53 and sealing portion 54 in a single extrusion step using a first rubber extruder, but with the body portion 53 being in an opened out state and having a generally flat base 55, with arm portions 57 and 59 extending from the edge regions of the base portion 55 and extending at an angle of about 80° thereto, both on the same side of the base portion 55. A pair of spaced gripping fins 61 extends outwardly from the arm 57 and a further pair of spaced gripping fins 63 extends outwardly from the arm 59, the fins 63 being somewhat thicker and less deformable than the fins 61. The general shape of the first extrusion of thermosetting material is shown in FIG. 5A, but FIG. 5A shows the extrusion after it has been passed through a curing station and largely cured and after a strip of thermoplastic material 25 has been extruded onto the face of the flat base 55 so as completely to cover the face between the arms 57 and 59. This extrusion step is performed by a second, plastics extruder while the thermosetting material is still hot, so that the thermoplastic material 25 will bond to the face of the base 55 and is equivalent to the steps shown in FIGS. 3B and 4B of the previous ver˜ions of the invention.
  • Immediately after the [0045] thermoplastics material 25 has been extruded onto the face of the base 55 and while both materials are still hot, the arms 57 and 59 of thermosetting material are folded inwardly in the direction of the arrows A as shown in Figure SA until the inner faces of each arm abut the outer face of the thermoplastic material 25 and the free end portions of the arms 57 and 59 abut each other. Because the materials are still hot they will bond with each other.
  • Subsequent to this, the partially formed composite extrusion is passed through a forming and cooling die which progressively forms the extrusion into the shape shown in FIG. 5B and then on into the final shape shown in FIG. 5C. By choosing an appropriate [0046] thermoplastic material 25, which in the end product is totally encapsulated within thermosetting material of the flange gripping portion 53, a large degree of rigidity can be imparted to the flange gripping portion 53 in transverse planes through the flange gripping portion, thus maintaining the U-shape of the flange gripping portion and allowing it strongly to grip a flange to which it is fitted.
  • It will thus be appreciated that the various versions of the second embodiment of the invention which are illustrated in FIGS. 3A to [0047] 3C, 4A to 4C and 5A to 5C are provided with an internal reinforcement or stiffened carrier 25 which is non-metallic but which, by choosing the correct material, can have strenthening and stiffening properties normally associated with a metal carrier, but which does not have the undesirable properties of a metal carrier, namely a relatively high weight and a tendency to rust.
  • Instead of only partially curing the thermosetting extrusion, it can be normally cured and reeled, and in a subsequent operation, it can be heated to a temperature within the range of about 180° C. to 250° C., and then be passed into the further extruder to have the thermoplastic material extruded onto it; the final steps would then be undertaken in a similar manner to those described with reference to the drawings. It has been found that a satisfactory bond can be achieved by taking a reeled thermosetting extrusion extruded up to two weeks earlier, provided it is heated adequately before passing it into the second, plastics extruder. [0048]
  • It will thus be appreciated that this invention enables a rubber extrusion to be matched to the interior of an automobile or the exterior paintwork of an automobile, or to the interior or exterior decor of a building by extruding a thermoplastics material onto its surface. In order to obtain the long term performance characteristics, such as ozone resistance, low temperature properties and compression set on automobile, domestic or industrial weatherstrips, a cross-linked thermosetting polymeric material is necessary for the main body of the weatherstrip. [0049]
  • Traditionally, extruded rubber seals have had to be bonded by use of adhesives to a colored thermoplastic extrusion, which matches the interior and exterior of an automobile or building. Such combination seals have to pass through three discrete and different production processes, namely rubber extrusion, plastic extrusion, and combining the two with adhesives. Each process generates wastage and uses labour, and rubber extrusions are difficult to bond to thermoplastic materials and have therefore to be prepared to render them compatible. Some of the procedures are: [0050]
  • 1. Surface grinding to afford a clean surface on the rubber extrudate. [0051]
  • 2. Flame treating the surface of the rubber to change the polarity. [0052]
  • 3. Corona treatment of the rubber, plastic or both surfaces. [0053]
  • 4. Use of two-part urethane adhesives, high melt point, hot melt adhesive, or cross-linking hot melt adhesives to adhere the two substrates. [0054]
  • The invention described eliminates several stages of the combining process through the ability to extrude a decorative thermoplastic film directly onto a rubber extrudate, thereby giving a cheaper product, simpler manufacturing process, and reduced floor space useage. [0055]
  • Such seals are more economical than fabric covered seals, due to the elimination of expensive fabrics. [0056]
  • In the second embodiment of the invention, it is possible to form the extrusion so that the thermoplastics material is located internally of the thermosetting material, which by choice of a suitable thermoplastics material, can act as a stiffener, and replace the traditional metal carrier provided for stiffening purposes. [0057]
  • When the thermoplastics material is to be located on the surface of the composite extrusion, it is preferred that its stiffness or hardness (or flexibility) should approximately match that of the thermosetting material, and be in the region of Shore-[0058] A 70° to Shore-A 55°. However, when it is to be located within the thermosetting material in the end product, it would normally be stiffer or harder than the thermosetting material, and could have a hardness in the region of Shore-D 50° to Shore-D 60°.
  • It will of course be understood that the various embodiments of the present invention have been described above purely by way of example, and modifications of detail can be made within the scope of the invention. [0059]

Claims (19)

In the claims:
1. A composite extrusion, comprising:
(a) a stiffening member of a first rigidity;
(b) a body connected to the stiffening member, the body formed of a first polymeric material having a lesser rigidity than the stiffening member; and
(c) a contact layer on a portion of the body, the contact layer formed of a second polymeric material having a second melting temperature and a third polymeric material having a third melting temperature, the second melting temperature being less than the third melting temperature and the second and the third polymeric materials being different than the first polymeric material.
2. The composite extrusion of claim 1, wherein the stiffening member includes a metal carrier.
3. A composite extrusion, comprising:
(a) a stiffening member of a first polymeric material;
(b) a main body connected to the stiffening member and formed of a second polymeric material softer than the first polymeric material;
(c) a contact layer on a portion of the main body, the contact layer formed of a third polymeric material having a third melting point and a fourth polymeric material having a fourth melting point, the third melting point being higher than the fourth melting point and the third polymeric material and the fourth polymeric material being different than the second polymeric material.
4. The composite extrusion of claim 3, wherein the third polymeric material and the fourth polymeric material are thermosetting.
5. The composite extrusion of claim 3, wherein the third polymeric material and the fourth polymeric material are thermoplastic.
6. The composite extrusion of claim 3, wherein the layer is in the form of a bulb.
7. A composite extrusion, comprising:
(a) a base formed of a hard polymeric material;
(b) a body connected to the base and comprising a soft polymeric material;
(c) a contacting layer disposed on a portion of the body, the contacting layer comprising two polymeric materials having different melting points including a first polymeric material having a low melting point and a second polymeric material having a high melting point.
8. The composite extrusion of claim 7, wherein the hard polymeric material is a thermoplastic.
9. The composite extrusion of claim 7, wherein the soft polymeric material is thermosetting.
10. A composite extrusion, comprising:
(a) a body including a first polymeric material; and
(b) a contacting layer on a portion of the body, the contacting layer formed of a second polymeric material of a second melting temperature and a third polymeric material of a third different melting temperature.
11. The composite extrusion of claim 10, where the first polymeric material is a thermosetting material.
12. The composite extrusion of claim 10, wherein the second polymeric material and the third polymeric material are thermoplastic.
13. The composite extrusion of claim 10 further comprising a stiffening member connected to the body.
14. The composite extrusion of claim 13, where the stiffening member is thermoplastic.
15. The composite extrusion of claim 13, where the stiffening member is a metal carrier.
16. The composite extrusion of claim 10, wherein the second polymeric material and the third polymeric material are thermoplastic elastomers.
17. A composite extrusion, comprising:
(a) a thermoplastic reinforcing member;
(b) a thermosetting body on the reinforcing member; and
(c) a thermoplastic contact layer on at least a portion of the body.
18. The composite extrusion of claim 17, wherein the body substantially encompasses the reinforcing member.
19. The composite extrusion of claim 17, wherein the contact layer is formed of a first low melting point thermoplastic material and a second high melting point thermoplastic material.
US09/192,031 1988-11-21 1998-11-13 Composite extrusion Abandoned US20020061385A1 (en)

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GB8827180.4 1988-11-21
GB888827180A GB8827180D0 (en) 1988-11-21 1988-11-21 Composite extrusion
US08/714,031 US5686165A (en) 1988-11-21 1996-09-12 Manufacture of composite extrusions
US91463997A 1997-08-19 1997-08-19
US09/192,031 US20020061385A1 (en) 1988-11-21 1998-11-13 Composite extrusion

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US08/714,031 Expired - Lifetime US5686165A (en) 1988-11-21 1996-09-12 Manufacture of composite extrusions
US09/192,017 Expired - Fee Related US6024906A (en) 1988-11-21 1998-11-13 Method for forming a composite extrusion
US09/192,031 Abandoned US20020061385A1 (en) 1988-11-21 1998-11-13 Composite extrusion
US09/404,567 Expired - Fee Related US6245409B1 (en) 1988-11-21 1999-09-23 Composite extrusion and method for making same

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US08/714,031 Expired - Lifetime US5686165A (en) 1988-11-21 1996-09-12 Manufacture of composite extrusions
US09/192,017 Expired - Fee Related US6024906A (en) 1988-11-21 1998-11-13 Method for forming a composite extrusion

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050095413A1 (en) * 2003-10-02 2005-05-05 Boston Metal Products Corporation Multi-layer impact resistant bumper
US10323749B2 (en) 2016-09-16 2019-06-18 Jaeger-Unitek Sealing Solutions, Inc. Seal with siding channel

Families Citing this family (130)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8827180D0 (en) * 1988-11-21 1988-12-29 Schlegel Uk Holdings Composite extrusion
US5009947A (en) * 1989-04-28 1991-04-23 Schlegel Corporation Elastomeric strip and method of manufacture
US5221564A (en) * 1989-11-03 1993-06-22 The Standard Products Company Integral hybrid molding and weatherstrip
JPH0459352A (en) * 1990-06-29 1992-02-26 Toyoda Gosei Co Ltd Manufacture of extruded rubber product
GB9023367D0 (en) * 1990-10-26 1990-12-05 Draftex Ind Ltd Thermoplastic materials and products
US5447671A (en) * 1991-03-25 1995-09-05 Tokiwa Chemical Industries & Co., Ltd. Window glass edging member for a vehicle such as an automobile and method for manufacturing the edging member
GB2261010B (en) * 1991-10-30 1995-01-25 Silent Channel Prod Ltd Sealing strip
US5334458A (en) * 1992-04-23 1994-08-02 Geauga Company Rubber/plastic co-extrusion
US5343655A (en) * 1992-10-27 1994-09-06 Tokiwa Chemical Industries Co., Ltd. Weather strip for the window glass of an automobile
DE4314192C2 (en) * 1993-04-30 1995-04-06 Baedje K H Meteor Gummiwerke Process for producing a shaped profile part
DE4314191C1 (en) * 1993-04-30 1994-08-04 Baedje K H Meteor Gummiwerke Method and device for the co-vulcanization of thermoplastics and elastomers
DE4319139A1 (en) * 1993-06-09 1994-12-15 Bosch Gmbh Robert Method for producing an elongated wiper blade, consisting of an elastic material, for window wipers of motor vehicles
US5753063A (en) * 1994-12-27 1998-05-19 Toyoda Gosei Co., Ltd. Method of decorating rubber extruded product
US5622008A (en) * 1995-01-12 1997-04-22 Gencorp Inc. Weatherstrip with uncured foot
FR2729448A1 (en) * 1995-01-16 1996-07-19 Hutchinson Gmbh METHOD FOR MANUFACTURING A SEALING ELEMENT COMPRISING AN ELASTIC SEAL AND A BAND SUCH AS AN ADHESIVE STRIP
US5508103A (en) * 1995-01-30 1996-04-16 Marley Mouldings Inc. Extrusion product with decorative enhancement and process of making the same
GB9501774D0 (en) * 1995-01-31 1995-03-22 Reddiplex Ltd Method of extruding two or more materials
FR2732434B1 (en) * 1995-03-29 1997-06-13 Standard Products Ind SEAL AND MANUFACTURING METHOD THEREOF
US5741573A (en) * 1996-03-06 1998-04-21 The Standard Products Company Recyclable pinch flange welt and method of making same
US5628150A (en) * 1996-03-26 1997-05-13 The Standard Products Company Glass run channel with a composite reinforcement
JP3652436B2 (en) * 1996-04-30 2005-05-25 鬼怒川ゴム工業株式会社 Wind molding for automobile and extrusion molding apparatus for the wind molding
JP3834887B2 (en) * 1996-08-30 2006-10-18 豊田合成株式会社 Method of sticking tape member to rubber extrusion
US6247271B1 (en) * 1997-09-24 2001-06-19 Ford Global Technologies, Inc. Automotive door seal for accommodating weld flanges having different thicknesses
WO1998058528A2 (en) * 1997-10-09 1998-12-30 Dsm N.V. Apparatus and method for coextruding materials at different temperatures
DE19757225A1 (en) 1997-12-22 1999-07-01 Henniges Elastomer Kunststoff Profile, in particular sealing profile, preferably for use in the area of openings, preferably in motor vehicles
FR2778373B1 (en) * 1998-05-07 2000-07-28 Btr Sealing Systems France IMPROVEMENTS ON ELASTOMER PROFILES FOR SLIDING WINDOW FRAMES OF VEHICLE VEHICLES
US6106911A (en) * 1998-11-16 2000-08-22 Gencorp. Inc. Beltstrip for a motor vehicle
CA2287114A1 (en) * 1998-11-23 2000-05-23 Kenneth W. Rood Motor vehicle seal assembly and method of manufacture
US6093354A (en) * 1998-12-01 2000-07-25 Omnova Solutions Inc. Method of continuously curing a sheet formed of EPDM material
DE19924809C2 (en) * 1999-05-29 2003-07-17 Baedje K H Meteor Gummiwerke Method and device for assembling an elastomer assembly
JP4161473B2 (en) * 1999-07-01 2008-10-08 豊田合成株式会社 Extruded product with insert and method for producing the same
US6451411B1 (en) 1999-09-08 2002-09-17 Schlegel Corporation Weatherseal having a substrate with an adhesive overflow containment groove
DE29916352U1 (en) * 1999-09-17 2000-01-13 Baedje K H Meteor Gummiwerke Window sealing profile for a convertible
FR2800005B1 (en) * 1999-10-22 2002-06-28 Hutchinson PROCESS FOR MANUFACTURING A BENDABLE FRAME
US6199323B1 (en) * 1999-10-31 2001-03-13 Enrico Autovino Double-hung window structure and seals
US6660360B2 (en) 2000-01-04 2003-12-09 Cooper Technology Services, Llc Laminate of a substrate and an extruded high density polyethylene
GB2359320B (en) * 2000-01-18 2003-11-19 Draftex Ind Ltd Sealing arrangements
JP3700518B2 (en) * 2000-02-18 2005-09-28 豊田合成株式会社 Glass run for automobile
DE60143103D1 (en) 2000-03-06 2010-11-04 Toyoda Gosei Kk Decoration for motor vehicles and manufacturing processes
US6660086B1 (en) * 2000-03-06 2003-12-09 Innovative Coatings, Inc. Method and apparatus for extruding a coating upon a substrate surface
ATE386843T1 (en) * 2000-05-03 2008-03-15 Ihec Acquisition Corp RAIL PROTECTION
FR2809051B1 (en) * 2000-05-18 2003-05-16 Hutchinson METHOD FOR MANUFACTURING A SEALING TRIM, ESPECIALLY FOR SLIDING GLASS WINDOW, AND WINDOW EQUIPPED WITH SUCH A TRIM
KR20020034258A (en) * 2000-10-31 2002-05-09 최원철 Novel compound isolated from Symphyocladia latiuscula and process for preparation thereof
US6514604B2 (en) * 2001-02-02 2003-02-04 Schlegel Corporation Migration inhibiting layer for a weatherstrip
US6849310B2 (en) * 2001-04-20 2005-02-01 Schlegel Corporation Contiguous colliquefaction forming a surface film for a composite strip
US6592789B2 (en) 2001-05-18 2003-07-15 James B. Barsby Apparatus and methods for mixing and injecting a foam core within an extruded shell
WO2002100940A1 (en) * 2001-06-08 2002-12-19 Thermoplastic Rubber Systems, Inc. Thermoplastic vulcanizates
NL1018372C2 (en) * 2001-06-22 2002-12-30 Dsm Nv Multi-layer molded part.
US20030035922A1 (en) * 2001-07-20 2003-02-20 Zuoxing Yu Manufacture of abrasion resistant composite extrusions
US20050095374A1 (en) * 2001-07-24 2005-05-05 Liggett Cothran Composites containing crosslinkable thermoplastic and TPV show layer
US6828011B2 (en) 2001-07-24 2004-12-07 Cooper Technology Services, Llc Moisture crosslinkable thermoplastics in the manufacture of vehicle weather strips
US20040157053A1 (en) * 2001-07-24 2004-08-12 Cooper Technology Services Llc Moisture crosslinkable thermoplastics in the manufacture of vehicle weather strips
US6776948B1 (en) * 2001-07-26 2004-08-17 Ultrafab, Inc. Method and apparatus for applying coatings of molten thermoplastic material over closed pore elastomer foam substrates
US20030157316A1 (en) * 2002-02-15 2003-08-21 Jyawook Sam M. Thermoplastic vehicle weather stripping
AU2003205725A1 (en) * 2002-02-28 2003-09-09 Unilever N.V. Bleach catalyst enhancement
KR100463863B1 (en) * 2002-07-08 2004-12-30 주식회사 화승알앤에이 Manufacturing method for weather strip of automobile and weather strip which is manufactured by that method
JP3752627B2 (en) * 2002-09-03 2006-03-08 西川ゴム工業株式会社 Metal insertless automotive weatherstrip
US7467495B2 (en) * 2002-09-03 2008-12-23 Troester Gmbh And Co. Kg Vehicle seal with discontinuous alterating soft and rigid u-shaped segments and method of forming same
JP3752626B2 (en) * 2002-09-03 2006-03-08 西川ゴム工業株式会社 Weather strip for automobile and manufacturing method thereof
DE10349232B4 (en) 2002-10-22 2008-09-04 Tokiwa Chemical Industries Co., Ltd., Shiroi Extruded vehicle part and method of making the same
CA2527223C (en) * 2003-06-04 2012-12-04 Decoma International Inc. Rigid plastic glass run channel
US20050046124A1 (en) * 2003-08-26 2005-03-03 Schlegel Corporation Weatherseal with sealing surface having strips of material exhibiting reduced adhesion bonding to frozen water
US20050048263A1 (en) * 2003-08-26 2005-03-03 Schlegel Corporation Reflective surface for a vehicle weatherseal
JP4223446B2 (en) * 2003-10-06 2009-02-12 西川ゴム工業株式会社 Automotive weatherstrip
US7152374B2 (en) * 2003-10-21 2006-12-26 Gencorp Inc. Composite extrusion for trim seal strip and method for forming same
FR2865808B1 (en) * 2004-02-03 2007-06-01 Centre Nat Rech Scient Tribometer.
JP4379715B2 (en) * 2004-02-19 2009-12-09 豊田合成株式会社 Long molded product
GB2411924A (en) * 2004-03-09 2005-09-14 Gencorp Property Inc Window pane support strip
US7531118B2 (en) * 2004-10-18 2009-05-12 Decoma International, Inc. Heat formed TPV co-extruded header trim
US20060177627A1 (en) * 2005-02-09 2006-08-10 Schlegel Corporation Carrier assembly with fused power and frame-warp aperture
US20080034666A1 (en) * 2005-02-15 2008-02-14 Jyawook Sam M Thermoplastic vehicle weather stripping
US20070020475A1 (en) * 2005-07-21 2007-01-25 Prince Kendall W Primed substrate and method for making the same
US7997030B2 (en) 2006-03-08 2011-08-16 Schlegel Corporation Flange engaging strip with a carrier for engaging a flange having a varying thickness along a longitudinal dimension
WO2007106390A2 (en) 2006-03-10 2007-09-20 Amesbury Group, Inc Apparatus and method for manufacturing reinforced weatherstrip, and such a weatherstrip
DE102007002946B4 (en) * 2007-01-19 2009-07-16 Metzeler Automotive Profile Systems Gmbh Method for producing a seal, in particular for a motor vehicle
FR2912692B1 (en) * 2007-02-20 2011-06-17 Hutchinson SEALING MODULE FOR MOTOR VEHICLE AND METHOD FOR MANUFACTURING THE SAME
CA2681414A1 (en) * 2007-02-21 2008-08-28 Cooper-Standard Automotive Inc. Multi-material layered extrusion
US9289795B2 (en) 2008-07-01 2016-03-22 Precision Coating Innovations, Llc Pressurization coating systems, methods, and apparatuses
US8474189B1 (en) 2008-10-02 2013-07-02 Intek Plastics, Inc. Weather strip for use with frame structures having sharp corners
KR100899979B1 (en) * 2008-10-31 2009-06-01 주식회사 에스티모빅 System for oil tank leak inspecting
JP5513750B2 (en) * 2009-02-03 2014-06-04 東海興業株式会社 Weather strip and weather strip mounting structure
US8356373B2 (en) * 2009-03-06 2013-01-22 Noel Group Llc Unitary composite/hybrid cushioning structure(s) and profile(s) comprised of a thermoplastic foam(s) and a thermoset material(s)
US20130081209A1 (en) 2011-09-30 2013-04-04 Nomaco Inc. Cellular mattress assemblies and related methods
JP2010254270A (en) * 2009-03-30 2010-11-11 Toyoda Gosei Co Ltd Weather strip
WO2010151774A1 (en) 2009-06-25 2010-12-29 Nomaco Inc. Self-adjusting insulation, including insulation particulary suited for pipe or duct
USD694553S1 (en) 2010-03-03 2013-12-03 Noel Group Llc Mattress bed cushion
USD693145S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693144S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD693148S1 (en) 2010-03-03 2013-11-12 Noel Group Llc Mattress bed cushion
USD688492S1 (en) 2010-03-03 2013-08-27 Noel Group Llc Mattress bed cushion
FR2960189B1 (en) * 2010-05-20 2012-07-27 Hutchinson THERMOPLASTIC FRAME FOR SEALING PROFILE OR TRIM OF MOTOR VEHICLE, METHOD OF MANUFACTURING THE SAME AND INCORPORATING THE SAME
EP2576951B1 (en) * 2010-06-03 2019-09-18 Cooper-Standard Automotive, Inc. Method of formulating low gravity sponge rubber for automotive weatherstrips
EP2701559A2 (en) 2011-04-29 2014-03-05 Nomaco, Inc. Unitary composite/hybrid cushioning structures(s) and profile(s) comprised of a thermoplastic foam(s) and a thermoset material (s) and related mothods
DE102012000703A1 (en) * 2012-01-16 2013-07-18 Gm Global Technology Operations, Llc sealing device
USD691400S1 (en) 2012-02-10 2013-10-15 Nomaco Inc. Stackable base for mattress assembly
JP5696982B2 (en) * 2012-02-24 2015-04-08 豊田合成株式会社 Automotive glass run
USD693146S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD693147S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD694552S1 (en) 2012-04-27 2013-12-03 Noel Group Llc Mattress bed cushion
USD693149S1 (en) 2012-04-27 2013-11-12 Noel Group Llc Mattress bed cushion
USD692693S1 (en) 2012-04-27 2013-11-05 Noel Group Llc Mattress bed cushion
US9616457B2 (en) 2012-04-30 2017-04-11 Innovative Coatings, Inc. Pressurization coating systems, methods, and apparatuses
US9157566B2 (en) 2012-05-11 2015-10-13 Nomaco Inc. Insulation systems employing expansion features to insulate elongated containers subject to extreme temperature fluctuations, and related components and methods
US9027284B2 (en) 2012-05-15 2015-05-12 Henniges Automotive Sealing Systems North America, Inc. Sealing member
USD697337S1 (en) 2012-07-03 2014-01-14 Nomaco, Inc. Stackable base for mattress assembly
USD690536S1 (en) 2012-07-26 2013-10-01 Nomaco Inc. Motion isolation insulator pad
USD694041S1 (en) 2012-09-28 2013-11-26 Noel Group Llc Mattress bed cushion
USD688069S1 (en) 2012-09-28 2013-08-20 Noel Group Llc Mattress bed cushion
USD692694S1 (en) 2012-09-28 2013-11-05 Noel Group Llc Mattress bed cushion
USD707467S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD707468S1 (en) 2012-11-09 2014-06-24 Noel Group Llc Mattress bed cushion
USD709301S1 (en) 2012-11-09 2014-07-22 Noel Group Llc Mattress bed cushion
USD701713S1 (en) 2012-11-09 2014-04-01 Noel Group, Llc Mattress bed cushion
JP6101118B2 (en) * 2013-03-08 2017-03-22 信越ポリマー株式会社 Manufacturing method for door-to-door members
US9914255B2 (en) * 2013-03-15 2018-03-13 Vintech Industries, Inc. Method for making multiple durometer seals
US9321209B2 (en) * 2013-03-15 2016-04-26 Vintech Industries, Inc. Method for making multiple durometer bulb seals
US10045633B2 (en) 2013-04-26 2018-08-14 Noel Group Llc Cushioning assemblies with thermoplastic elements encapsulated in thermoset providing customizable support and airflow, and related methods
USD704962S1 (en) 2013-09-09 2014-05-20 Noel Group Llc Mattress bed cushion
US10315349B2 (en) 2014-02-07 2019-06-11 Henniges Automotive Sealing Systems North America, Inc. Sealing assembly for a vehicle and method of manufacturing a sealing assembly
US10329834B2 (en) 2015-02-13 2019-06-25 Amesbury Group, Inc. Low compression-force TPE weatherseals
PL3093116T3 (en) * 2015-05-13 2018-07-31 Stefan Pfaff Werkzeug- Und Formenbau Gmbh & Co. Kg Method of making sealing profiles
PL3093115T3 (en) * 2015-05-13 2018-01-31 Stefan Pfaff Werkzeug Und Formenbau Gmbh Co Kg Holding device and injection method
WO2017042346A1 (en) * 2015-09-10 2017-03-16 Stefan Pfaff Werkzeug- Und Formenbau Gmbh & Co. Kg Production and positioning method for sealing profiles
US20170074029A1 (en) * 2015-09-15 2017-03-16 Quanex Homeshield, Llc Glazing Bead for Engaging a Fenestration Article and a Frame, and a Method of Producing the Same
US10174843B1 (en) 2017-01-03 2019-01-08 The Boeing Company Single piece redundant, bi-directional, seal damage prevention pressure seal
JP7184051B2 (en) * 2017-12-12 2022-12-06 Agc株式会社 Fixed window glass with resin frame and manufacturing method thereof
JP7086356B2 (en) * 2019-01-25 2022-06-20 東海興業株式会社 Trim material for vehicles
DK180960B1 (en) * 2019-12-05 2022-08-11 Vkr Holding As A sealing gasket for use between flashing members, a flashing arrangement for a roof window including at least two flashing members and at least one sealing gasket, and method of sealing a gap between flashing members for a roof window
US20220219512A1 (en) * 2021-01-12 2022-07-14 Nishikawa Rubber Co., Ltd. Door hole cap and sealing member
DE102021115217A1 (en) * 2021-06-11 2022-12-15 Cqlt Saargummi Technologies S.À.R.L. Process for manufacturing a sealing profile and sealing profile

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758643A (en) * 1971-01-20 1973-09-11 Uniroyal Inc D polyolefin plastic thermoplastic blend of partially cured monoolefin copolymer rubber an

Family Cites Families (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU21905A1 (en) * 1928-02-22 1931-07-31 О.И. красочной промышленности Method of producing para-aminophenylstibic acid salts
US2439043A (en) * 1943-05-12 1948-04-06 Goodrich Co B F Method of making endless belts
US3068136A (en) * 1956-04-19 1962-12-11 Standard Products Co Method of making a channel-shaped structure
US3458386A (en) * 1964-03-26 1969-07-29 Glass Lab Co Decorative trim strip and method of making same
GB1083667A (en) * 1965-06-03 1967-09-20 Wright Howard Clayton Ltd Improvements relating to plastic coated decorative foil in strip form
SU300341A1 (en) * 1968-09-02 1971-04-07 Э. Г. Балалаев, О. Л. Фиговский , Э. А. Коган METHOD OF OBTAINING STRUCTURAL LAYERED MATERIAL
US3706173A (en) * 1969-08-15 1972-12-19 Alfred E Taylor Flexible molding strip and method of making same
US3758992A (en) * 1971-10-04 1973-09-18 H G Olson & Co Inc Sealed closures with weather-stripping
NL7211692A (en) * 1972-08-28 1974-03-04 Extruded plastic section with integral seals - esp for window frames
JPS49130470A (en) * 1973-04-16 1974-12-13
US3981958A (en) * 1973-04-19 1976-09-21 Toyoda Gosei Kabushiki-Kaisha (Toyoda Synthetics Co., Ltd.) Graft copolymers and process for producing same
US3904470A (en) * 1973-05-02 1975-09-09 Mitsui Petrochemical Ind Method for bonding rubber to plastics
JPS5637058B2 (en) * 1973-09-04 1981-08-28
GB1456086A (en) * 1974-04-24 1976-11-17 Schlegel Uk Ltd Edge protector trim strip
GB1535715A (en) * 1974-11-20 1978-12-13 Draftex Dev Ag Flexible sealing strips
US4064654A (en) * 1975-03-20 1977-12-27 H. G. Olson & Co., Inc. Sealed closures with weather stripping
GB1545511A (en) * 1975-05-07 1979-05-10 Schlegel Uk Ltd Extruded edge protector trim strip
US4130535A (en) * 1975-07-21 1978-12-19 Monsanto Company Thermoplastic vulcanizates of olefin rubber and polyolefin resin
DE2551766A1 (en) * 1975-11-18 1977-05-26 Dixon International Ltd Sealing strip inserted in groove of holder - by expanding groove opening at point of insertion
JPS534048A (en) * 1975-12-26 1978-01-14 Dainippon Toryo Co Ltd Method of forming multi-layer coating film
FR2342837A1 (en) * 1976-03-01 1977-09-30 Orfino Francesco COMPOSITE TUBE IN THE FORM OF TWO COUPLING TUBULAR ELEMENTS AND CONSTITUTED OF DIFFERENT PLASTICS, AND METHOD FOR MANUFACTURING THIS TUBE
US4081504A (en) * 1976-05-10 1978-03-28 Protective Treatments, Inc. Encapsulated composite metallized strip and method of making the same
DE2634596C2 (en) * 1976-07-31 1985-07-25 Gebr. Happich Gmbh, 5600 Wuppertal Edge protection profile strip
GB1563016A (en) * 1976-08-31 1980-03-19 Schlegel Uk Ltd Door seals
US4123488A (en) * 1977-09-06 1978-10-31 Lawson David E Molded plastic article and method of making the same
IT1119627B (en) * 1979-12-21 1986-03-10 Saiag Spa GASKET PROFILE FOR VEHICLE BODIES AND PROCEDURE FOR ITS MANUFACTURE
US4596734A (en) * 1980-03-03 1986-06-24 The B. F. Goodrich Company Wear resistant composites
DE3121241C2 (en) * 1980-05-28 1984-07-19 Dainippon Ink And Chemicals, Inc., Tokio/Tokyo Method of manufacturing a composite plastic pipe from thermoplastic resin
JPS5726023A (en) * 1980-07-24 1982-02-12 Kinugawa Rubber Ind Co Ltd Welt and manufacturing thereof
IN157880B (en) * 1982-10-27 1986-07-12 Dunlop Ltd
JPS59104852U (en) * 1982-12-30 1984-07-14 豊田合成株式会社 colored weather strips
JPS59201838A (en) * 1983-04-29 1984-11-15 Toyoda Gosei Co Ltd Rubber extrusion molding having slide surface and manufacture thereof
JPS6031937A (en) * 1983-07-29 1985-02-18 Hashimoto Forming Co Ltd Manufacture of molding made of synthetic resin
US4581807A (en) * 1983-09-19 1986-04-15 U.S. Product Development Company Co-extruded insulated edge guard
US4520594A (en) * 1983-09-19 1985-06-04 U.S. Product Development Company Door edge guard and method of manufacture
JPH0615194B2 (en) * 1983-11-22 1994-03-02 三井東圧化学株式会社 Method and device for manufacturing synthetic resin composite pipe
JPS60222238A (en) * 1984-04-19 1985-11-06 日東電工株式会社 Adhesive sheet for reinforcing
JPS6141644A (en) * 1984-07-31 1986-02-28 Toyoda Gosei Co Ltd Weather strip
JPS6099633A (en) * 1984-10-03 1985-06-03 Toyoda Gosei Co Ltd Manufacture of surface-glossy extruded product
DE3506410A1 (en) * 1985-02-23 1986-08-28 Continental Gummi-Werke Ag, 3000 Hannover METHOD FOR PRODUCING SEALING STRIPS
CA1262254A (en) * 1985-03-18 1989-10-10 Toyoda Gosei Co., Ltd. Weather strip for vehicle and producing method thereof
FR2580285B1 (en) * 1985-04-10 1988-01-22 Hutchinson LOW FRICTION COEFFICIENT SLIDING SURFACE DEVICE AND METHOD FOR LOWERING FRICTION COEFFICIENT
FR2584975B1 (en) * 1985-07-19 1987-11-20 Hutchinson PROCESS FOR OBTAINING CO-EXTRUSION OF PROFILES COMPRISING AT LEAST TWO PARTS HAVING DIFFERENT PROPERTIES AND PROFILES THUS OBTAINED
US4652475A (en) * 1985-11-08 1987-03-24 The Gates Rubber Company Compound adhesive formulation and composite hose made with the same
JPS62201115U (en) * 1986-04-07 1987-12-22
MY102989A (en) * 1986-10-30 1993-03-31 Mitsui Chemicals Inc Laminate and molded article prepared therefrom
US4830898A (en) * 1987-12-16 1989-05-16 Sterling Engineered Products Inc. Extruded vinyl molding incorporating a stiffener
US4913976A (en) * 1988-01-25 1990-04-03 Gencorp Inc. Cohesive bonding process for forming a laminate of a wear resistant thermoplastic and a weather resistant rubber
US5013379A (en) * 1988-01-25 1991-05-07 Gencorp Inc. Cohesive bonding process for forming a laminate of a wear resistant thermoplastic and a weather resistant rubber
FR2634816B1 (en) * 1988-07-28 1990-11-02 Hutchinson GUIDE SLIDE FOR MOBILE ICE, ESPECIALLY ICE OR AUTOMOTIVE WINDOW
US5151307A (en) * 1988-09-19 1992-09-29 The Standard Products Company Color match molding and weatherstrip
US4975306A (en) * 1988-09-19 1990-12-04 The Standard Products Company Color match molding and weatherstrip
GB8827180D0 (en) * 1988-11-21 1988-12-29 Schlegel Uk Holdings Composite extrusion
US5221564A (en) * 1989-11-03 1993-06-22 The Standard Products Company Integral hybrid molding and weatherstrip
JPH03125615U (en) * 1990-03-31 1991-12-18
US5447671A (en) * 1991-03-25 1995-09-05 Tokiwa Chemical Industries & Co., Ltd. Window glass edging member for a vehicle such as an automobile and method for manufacturing the edging member
US5343655A (en) * 1992-10-27 1994-09-06 Tokiwa Chemical Industries Co., Ltd. Weather strip for the window glass of an automobile
JPH0773893B2 (en) * 1993-06-07 1995-08-09 トキワケミカル工業株式会社 Molding method for automotive weather strip

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3758643A (en) * 1971-01-20 1973-09-11 Uniroyal Inc D polyolefin plastic thermoplastic blend of partially cured monoolefin copolymer rubber an

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050095413A1 (en) * 2003-10-02 2005-05-05 Boston Metal Products Corporation Multi-layer impact resistant bumper
US8153242B2 (en) 2003-10-02 2012-04-10 Boston Metal Products Corporation Multi-layer impact resistant bumper
US10323749B2 (en) 2016-09-16 2019-06-18 Jaeger-Unitek Sealing Solutions, Inc. Seal with siding channel

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US5411785A (en) 1995-05-02
GB8827180D0 (en) 1988-12-29
EP0372745B1 (en) 1994-01-12
AU624442B2 (en) 1992-06-11
DE68912291T2 (en) 1994-08-04
DE68912291D1 (en) 1994-02-24
EP0372745A1 (en) 1990-06-13
CA2002907C (en) 1998-07-21
US6024906A (en) 2000-02-15
BR8905852A (en) 1990-06-12
ES2050253T3 (en) 1994-05-16
JPH02212118A (en) 1990-08-23
KR900007498A (en) 1990-06-01
US5415822A (en) 1995-05-16
KR0160497B1 (en) 1999-01-15
CA2002907A1 (en) 1990-05-21
US5686165A (en) 1997-11-11
JP2832850B2 (en) 1998-12-09
MX170037B (en) 1993-08-04
US6245409B1 (en) 2001-06-12
AU4474989A (en) 1990-05-24

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