DE3104037C2 - Verfahren zur Herstellung eines porösen Rohres aus gestrecktem porösem PTFE - Google Patents
Verfahren zur Herstellung eines porösen Rohres aus gestrecktem porösem PTFEInfo
- Publication number
- DE3104037C2 DE3104037C2 DE3104037A DE3104037A DE3104037C2 DE 3104037 C2 DE3104037 C2 DE 3104037C2 DE 3104037 A DE3104037 A DE 3104037A DE 3104037 A DE3104037 A DE 3104037A DE 3104037 C2 DE3104037 C2 DE 3104037C2
- Authority
- DE
- Germany
- Prior art keywords
- ptfe
- sections
- porous
- tube
- microstructure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 229920001343 polytetrafluoroethylene Polymers 0.000 title claims abstract description 23
- 239000004810 polytetrafluoroethylene Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 6
- 238000000034 method Methods 0.000 title claims description 11
- 238000002844 melting Methods 0.000 claims abstract description 7
- 230000008018 melting Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 238000005304 joining Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 2
- -1 polytetrafluoroethylene Polymers 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 3
- 238000000635 electron micrograph Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical class [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical class [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000001356 surgical procedure Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/12—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives
- C08J5/121—Bonding of a preformed macromolecular material to the same or other solid material such as metal, glass, leather, e.g. using adhesives by heating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/04—Hollow or tubular parts of organs, e.g. bladders, tracheae, bronchi or bile ducts
- A61F2/06—Blood vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/36—Bending and joining, e.g. for making hollow articles
- B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
- B29C53/385—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges using several sheets to form the circumference
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
- B29C61/006—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor the force created by the liberation of the internal stresses being used for compression moulding or for pressing preformed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/022—Particular heating or welding methods not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/82—Testing the joint
- B29C65/8253—Testing the joint by the use of waves or particle radiation, e.g. visual examination, scanning electron microscopy, or X-rays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
- B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/49—Internally supporting the, e.g. tubular, article during joining
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/739—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/7392—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
- B29C66/73921—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/80—General aspects of machine operations or constructions and parts thereof
- B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
- B29C66/826—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined
- B29C66/8264—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps without using a separate pressure application tool, e.g. the own weight of the parts to be joined using the thermal expansion of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
- B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
- B29C66/73711—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
- B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
- B29C66/73711—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented
- B29C66/73712—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable oriented mono-axially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
- B29C66/7377—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
- B29C66/73773—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being semi-crystalline
- B29C66/73774—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being semi-crystalline the to-be-joined areas of both parts to be joined being semi-crystalline
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING 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
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/14—Filters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
- C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
- C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
- C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S138/00—Pipes and tubular conduits
- Y10S138/03—Polytetrafluoroethylene, i.e. PTFE
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1328—Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, etc.]
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1328—Shrinkable or shrunk [e.g., due to heat, solvent, volatile agent, restraint removal, etc.]
- Y10T428/1331—Single layer [continuous layer]
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/19—Sheets or webs edge spliced or joined
- Y10T428/192—Sheets or webs coplanar
-
- Y—GENERAL 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
Abstract
Description
Die Aufgabe der Erfindung besteht darin, ein Verfahren zur Herstellung eines porösen zusammengesetzten Rohres aus einer Vielzahl von Abschnitten aus gestrecktem porösem PTFE mit einer MikroStruktur aus Knoten, welche durch Fibrillen verbunden sind, zu schaffen, mit welchem die MikroStruktur ununterbrochen quer durch die Verbindungsbereiche der Abschnitte aufrechterhalten werden kann, so daß sich ein im wesentlichen nahtfreies Rohr ergibt
Claims (1)
- Patentanspruch:Verfahren zur Herstellung eines porösen Rohres aus gestrecktem porösem PTFE mit einer Mikrostruktur aus Knoten, welche durch Fibrillen verbunden sind, gekennzeichnet durch folgende Schritte:a) Aneinanderfügen einer Vielzahl von Materialabschnitten um einen Dorn zur Formung eines Rohres,b) spiralförmiges Umwickeln der aneinandergefügten Abschnitte mit einer hochfesten Folie aus gestrecktem porösem PTFE mit einer Mikrostruktur aus Knoten, welche durch Fibrillen verbunden sind,c) longitadinales Festlegen der Abschnitte,d) Erhitzen des so hergestellten Rohres auf eine Temperatur oberhalb des kristallinen Schmelzpunktes von PTFE für eine vorbestimmte Zeit zum Aufschrumpfen der Folie auf die Abschnitte, wodurch Druck senkrecht zu den Rändern der Abschnitte aufgebracht wird, unde) Abkühlen des so hergestellten Rohres.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/121,365 US4283448A (en) | 1980-02-14 | 1980-02-14 | Composite polytetrafluoroethylene article and a process for making the same |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3104037A1 DE3104037A1 (de) | 1981-12-24 |
DE3104037C2 true DE3104037C2 (de) | 1986-02-27 |
Family
ID=22396215
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3153231A Expired DE3153231C2 (de) | 1980-02-14 | 1981-02-05 | |
DE3104037A Expired DE3104037C2 (de) | 1980-02-14 | 1981-02-05 | Verfahren zur Herstellung eines porösen Rohres aus gestrecktem porösem PTFE |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3153231A Expired DE3153231C2 (de) | 1980-02-14 | 1981-02-05 |
Country Status (20)
Country | Link |
---|---|
US (1) | US4283448A (de) |
JP (1) | JPS5746835A (de) |
AT (1) | AT386416B (de) |
AU (1) | AU541290B2 (de) |
BE (1) | BE887501A (de) |
BR (1) | BR8100852A (de) |
CA (1) | CA1165080A (de) |
CH (1) | CH652072A5 (de) |
DE (2) | DE3153231C2 (de) |
DK (1) | DK156419C (de) |
FI (1) | FI72920C (de) |
FR (1) | FR2475974B1 (de) |
GB (1) | GB2068827B (de) |
GR (1) | GR73849B (de) |
IN (1) | IN155688B (de) |
IT (1) | IT1135417B (de) |
NL (1) | NL185906C (de) |
NO (1) | NO810506L (de) |
SE (1) | SE448968B (de) |
ZA (1) | ZA81678B (de) |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4463329A (en) * | 1978-08-15 | 1984-07-31 | Hirosuke Suzuki | Dielectric waveguide |
AU6373880A (en) * | 1979-11-09 | 1981-05-14 | Ashland Food Technology Holdings S.A. | Sausage making |
US4478665A (en) * | 1980-11-06 | 1984-10-23 | W. L. Gore & Associates, Inc. | Method for manufacturing highly porous, high strength PTFE articles |
US4385093A (en) * | 1980-11-06 | 1983-05-24 | W. L. Gore & Associates, Inc. | Multi-component, highly porous, high strength PTFE article and method for manufacturing same |
US4557957A (en) * | 1983-03-18 | 1985-12-10 | W. L. Gore & Associates, Inc. | Microporous metal-plated polytetrafluoroethylene articles and method of manufacture |
JPS60214942A (ja) * | 1984-04-10 | 1985-10-28 | 株式会社 潤工社 | 圧縮変形しにくい延伸多孔質四弗化エチレン樹脂体 |
JPS61151245A (ja) * | 1984-12-25 | 1986-07-09 | Sumitomo Electric Ind Ltd | 多孔性薄膜材料の表面処理方法 |
US5219894A (en) * | 1984-12-25 | 1993-06-15 | Sumitomo Electric Industries, Ltd. | Method for treating the surface of a thin porous film material |
US4787921A (en) * | 1986-06-13 | 1988-11-29 | Japan Gore-Tex, Inc. | Degassing tube |
US4701291A (en) * | 1986-07-25 | 1987-10-20 | The Duriron Company, Inc. | Process of isostatic molding and bonding fluoropolymers |
JPS63134092A (ja) * | 1986-11-23 | 1988-06-06 | Takanori Shigee | 高架水槽水の殺菌装置 |
US4790090A (en) * | 1987-04-30 | 1988-12-13 | Sharber Norman G | Fish tag |
US4973609A (en) * | 1988-11-17 | 1990-11-27 | Memron, Inc. | Porous fluoropolymer alloy and process of manufacture |
FR2644103B1 (fr) * | 1989-03-10 | 1995-01-13 | Eberle Jean Marie | Procede de fabrication d'un corps d'un emballage tubulaire, emballage ainsi obtenu et dispositif pour la mise en oeuvre de ce procede |
US4990296A (en) * | 1989-08-21 | 1991-02-05 | Garlock Inc. | Welding of filled sintered polytetrafluoroethylene |
US5245134A (en) * | 1990-08-29 | 1993-09-14 | W. L. Gore & Associates, Inc. | Polytetrafluoroethylene multiconductor cable and process for manufacture thereof |
EP0587588B1 (de) * | 1991-06-04 | 1998-07-08 | Donaldson Company, Inc. | Mit fluessigkeiten behandelte polytetrafluroaethylenprodukte und ihre herstellung |
DE69325649T2 (de) * | 1992-03-13 | 1999-11-18 | Atrium Medical Corp | Gegenstände aus expandiertem fluorpolymer (z. b. polytetrafluorethylen) mit komtrolliert eingestellter porosität, sowie seine herstellung |
CA2117685C (en) * | 1992-04-10 | 1999-06-01 | William J. Hendershot | A method of ultrasonically welding articles of porous polytetrafluoroethylene |
US5735892A (en) * | 1993-08-18 | 1998-04-07 | W. L. Gore & Associates, Inc. | Intraluminal stent graft |
EP0714270B1 (de) * | 1993-08-18 | 2002-09-04 | W.L. Gore & Associates, Inc. | Rohrfoermiges intraluminal einsetzbares gewebe |
US5478423A (en) * | 1993-09-28 | 1995-12-26 | W. L. Gore & Associates, Inc. | Method for making a printer release agent supply wick |
US5609624A (en) * | 1993-10-08 | 1997-03-11 | Impra, Inc. | Reinforced vascular graft and method of making same |
US5497809A (en) * | 1994-01-05 | 1996-03-12 | Wolf; Lawrence W. | Vented bending sleeves for coaxial tubing systems |
CA2189662C (en) | 1994-05-06 | 2004-12-14 | William M. Colone | Radially expandable polytetrafluoroethylene |
WO1996000103A1 (en) * | 1994-06-27 | 1996-01-04 | Endomed, Inc. | Radially expandable polytetrafluoroethylene and expandable endovascular stents formed therewith |
US5641373A (en) * | 1995-04-17 | 1997-06-24 | Baxter International Inc. | Method of manufacturing a radially-enlargeable PTFE tape-reinforced vascular graft |
US5814175A (en) * | 1995-06-07 | 1998-09-29 | Edlon Inc. | Welded thermoplastic polymer article and a method and apparatus for making same |
US5607478A (en) * | 1996-03-14 | 1997-03-04 | Meadox Medicals Inc. | Yarn wrapped PTFE tubular prosthesis |
US6228204B1 (en) * | 1998-02-05 | 2001-05-08 | Crane Co. | Method and apparatus for welding together fluoropolymer pipe liners |
US6342294B1 (en) * | 1999-08-12 | 2002-01-29 | Bruce G. Ruefer | Composite PTFE article and method of manufacture |
US6341625B1 (en) * | 2000-01-10 | 2002-01-29 | Kanagawa Toyota Motor Sales Co., Ltd. | Hydraulic brake hose assembly for bicycles |
US7128558B2 (en) * | 2002-08-09 | 2006-10-31 | The Boeing Company | Post-forming of thermoplastic ducts |
US8029563B2 (en) | 2004-11-29 | 2011-10-04 | Gore Enterprise Holdings, Inc. | Implantable devices with reduced needle puncture site leakage |
GB0511431D0 (en) | 2005-06-04 | 2005-07-13 | Vascutek Ltd | Graft |
US20100219265A1 (en) * | 2007-07-09 | 2010-09-02 | Tanhum Feld | Water irrigation system including drip irrigation emitters |
US20090053371A1 (en) * | 2007-08-21 | 2009-02-26 | Carolie Hancock | Package for storing, shipping, preparing and dispensing a meal |
TWI631144B (zh) * | 2013-11-29 | 2018-08-01 | 大金工業股份有限公司 | 多孔質體、高分子電解質膜、過濾器用濾材及過濾器單元 |
US9814560B2 (en) | 2013-12-05 | 2017-11-14 | W. L. Gore & Associates, Inc. | Tapered implantable device and methods for making such devices |
CN110946684B (zh) | 2015-06-05 | 2022-06-03 | W.L.戈尔及同仁股份有限公司 | 带有渐缩部的低渗血量可植入假体 |
US10413635B2 (en) * | 2015-08-17 | 2019-09-17 | Vivex Biomedical, Inc. | Umbilical cord transplant product |
US11378214B2 (en) | 2020-06-26 | 2022-07-05 | Lawrence Wolf | Coaxial tubing systems with securable spacers |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US612897A (en) * | 1898-10-25 | Construction of tubes and cylinders | ||
US3207644A (en) * | 1959-07-20 | 1965-09-21 | Garlock Inc | Method of making a fluorocarbon resin jacketed gasket |
US3356551A (en) * | 1961-08-21 | 1967-12-05 | Martin Marietta Corp | Method of joining bodies of polytetrafluoroethylene |
CA962021A (en) * | 1970-05-21 | 1975-02-04 | Robert W. Gore | Porous products and process therefor |
US3767500A (en) * | 1971-12-28 | 1973-10-23 | Tme Corp | Method of laminating long strips of various materials |
US4061517A (en) * | 1975-08-27 | 1977-12-06 | Chemelec Products, Inc. | Method of making fluorocarbon resin covered gaskets |
DE2549475C3 (de) * | 1975-11-05 | 1979-04-19 | Sigri Elektrographit Gmbh, 8901 Meitingen | Verfahren und Vorrichtung zum Verbinden von Formkörpern aus PoIytetrafluoräthylen |
-
1980
- 1980-02-14 US US06/121,365 patent/US4283448A/en not_active Expired - Lifetime
-
1981
- 1981-01-23 SE SE8100407A patent/SE448968B/sv not_active IP Right Cessation
- 1981-02-02 ZA ZA00810678A patent/ZA81678B/xx unknown
- 1981-02-05 DE DE3153231A patent/DE3153231C2/de not_active Expired
- 1981-02-05 GB GB8103585A patent/GB2068827B/en not_active Expired
- 1981-02-05 DE DE3104037A patent/DE3104037C2/de not_active Expired
- 1981-02-10 AU AU67146/81A patent/AU541290B2/en not_active Ceased
- 1981-02-10 CH CH888/81A patent/CH652072A5/de not_active IP Right Cessation
- 1981-02-11 IT IT19659/81A patent/IT1135417B/it active
- 1981-02-12 BR BR8100852A patent/BR8100852A/pt unknown
- 1981-02-12 NL NLAANVRAGE8100672,A patent/NL185906C/xx not_active IP Right Cessation
- 1981-02-12 BE BE0/203784A patent/BE887501A/fr unknown
- 1981-02-12 GR GR64113A patent/GR73849B/el unknown
- 1981-02-13 JP JP56019161A patent/JPS5746835A/ja active Granted
- 1981-02-13 FR FR8102848A patent/FR2475974B1/fr not_active Expired
- 1981-02-13 FI FI810449A patent/FI72920C/fi not_active IP Right Cessation
- 1981-02-13 DK DK063581A patent/DK156419C/da not_active IP Right Cessation
- 1981-02-13 IN IN167/CAL/81A patent/IN155688B/en unknown
- 1981-02-13 CA CA000370903A patent/CA1165080A/en not_active Expired
- 1981-02-13 NO NO810506A patent/NO810506L/no unknown
- 1981-02-16 AT AT0071181A patent/AT386416B/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3104037A1 (de) | 1981-12-24 |
GB2068827B (en) | 1983-09-21 |
FR2475974B1 (fr) | 1985-06-21 |
AU6714681A (en) | 1981-08-20 |
NO810506L (no) | 1981-08-17 |
AU541290B2 (en) | 1985-01-03 |
IT1135417B (it) | 1986-08-20 |
DE3153231C2 (de) | 1987-05-21 |
IN155688B (de) | 1985-02-23 |
ZA81678B (en) | 1982-03-31 |
NL185906C (nl) | 1990-08-16 |
CA1165080A (en) | 1984-04-10 |
GB2068827A (en) | 1981-08-19 |
BE887501A (fr) | 1981-06-01 |
NL8100672A (nl) | 1981-09-16 |
NL185906B (nl) | 1990-03-16 |
JPS6315904B2 (de) | 1988-04-06 |
DK156419B (da) | 1989-08-21 |
SE8100407L (sv) | 1981-08-15 |
FR2475974A1 (fr) | 1981-08-21 |
US4283448A (en) | 1981-08-11 |
FI72920C (fi) | 1987-08-10 |
FI72920B (fi) | 1987-04-30 |
JPS5746835A (en) | 1982-03-17 |
AT386416B (de) | 1988-08-25 |
BR8100852A (pt) | 1981-08-25 |
GR73849B (de) | 1984-05-07 |
ATA71181A (de) | 1988-01-15 |
SE448968B (sv) | 1987-03-30 |
DK63581A (da) | 1981-08-15 |
CH652072A5 (de) | 1985-10-31 |
FI810449L (fi) | 1981-08-15 |
DK156419C (da) | 1990-01-22 |
IT8119659A0 (it) | 1981-02-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3104037C2 (de) | Verfahren zur Herstellung eines porösen Rohres aus gestrecktem porösem PTFE | |
DE19747057A1 (de) | Verfahren zur Herstellung einer röhrenförmigen Membranvorrichtung und dadurch hergestellte röhrenförmige Membranvorrichtungen | |
DE2739705B2 (de) | Asymmetrische poröse Folien aus Polytetrafluorethylen und Verfahren zu ihrer Herstellung | |
DE102005007596A1 (de) | Überzug, Herstellungsverfahren und Verfahren zum Aufbringen eines Überzuges auf ein medizinisches Instrument sowie medizinisches Instrument | |
DE3445524A1 (de) | Verfahren und vorrichtung zum verschweissen von kunststoffolien | |
DE3615032A1 (de) | Verfahren und vorrichtung zur herstellung eines rohrbuendels | |
CH620858A5 (de) | ||
DE4112962A1 (de) | Mehrwandiges stahlrohr | |
DE2023146A1 (de) | Leitung mit Mikro-Querschnitt fuer stroemende Medien und Verfahren zu deren Herstellung | |
EP0299182B1 (de) | Verfahren zum Verschweissen von Rohrenden mit einem Rohrboden | |
DE2309262C3 (de) | Verfahren zum !Coextrudieren eines dreischichtigen Verbundschlauches sowie Vorrichtung zur Durchführung des Verfahrens | |
DE4030274C1 (de) | ||
CH630004A5 (en) | Weldable binding tape and process for the production thereof | |
DE1671756B2 (de) | ||
DE2008085A1 (en) | Laminated tubing material | |
DE1093546B (de) | Verfahren zum Herstellen von innen glatten Schlaeuchen aus thermoplastischem Kunststoff mit einer Stuetzwendel nach der Methode des Wickelns | |
EP0510785A1 (de) | Verfahren und Vorrichtung zum Verschweissen zweier Hohlkörper | |
DE102011075745A1 (de) | Verfahren zur Herstellung eines Rohrs oder Rohrhalbzeugs und Rohr oder Rohrhalbzeug für den chemischen Apparatebau | |
DE2656804B2 (de) | Verfahren zum T- oder Stumpfschweißen von Schichtkörpern mit einer Innenschicht aus thermoplastischem Schaumkunststoff | |
DE2710035C3 (de) | Verfahren zum Verstärken flachliegender Schlauchfolien durch Bändchengelege | |
DE2310596C3 (de) | Verfahren und Vorrichtung zum Herstellen von Beuteln aus thermoplastischem Kunststoff | |
DE1501597C (de) | Verfahren zur Herstellung eines Wärmeaustauscher-Rohrbündels aus flexiblen Rohren aus thermoplastischem Werkstoff | |
DE19813387A1 (de) | Verfahren zur Herstellung eines rohrförmigen Hohlkörpers aus Polytetrafluorethylen oder aus einem PTFE-Recyclat | |
DE2707516A1 (de) | Waermeisolierender mantel fuer rohr oder schlauch | |
EP0988958B1 (de) | Verfahren und Vorrichtung zum Verschweissen einer Folie |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 3153148 Format of ref document f/p: P |
|
Q171 | Divided out to: |
Ref country code: DE Ref document number: 3153148 |
|
8125 | Change of the main classification |
Ipc: B29D 23/01 |
|
8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 3153179 Format of ref document f/p: P |
|
Q171 | Divided out to: |
Ref country code: DE Ref document number: 3153179 |
|
8172 | Supplementary division/partition in: |
Ref country code: DE Ref document number: 3153231 Format of ref document f/p: P |
|
Q171 | Divided out to: |
Ref country code: DE Ref document number: 3153231 |
|
8128 | New person/name/address of the agent |
Representative=s name: KADOR, U., DIPL.-CHEM. DR.RER.NAT. KLUNKER, H., DI |
|
AH | Division in |
Ref country code: DE Ref document number: 3153148 Format of ref document f/p: P |
|
D2 | Grant after examination | ||
8328 | Change in the person/name/address of the agent |
Free format text: KLUNKER, H., DIPL.-ING. DR.RER.NAT. SCHMITT-NILSON, G., DIPL.-ING. DR.-ING. HIRSCH, P., DIPL.-ING.,PAT.-ANW., 8000 MUENCHEN |
|
8364 | No opposition during term of opposition | ||
AH | Division in |
Ref country code: DE Ref document number: 3153231 Format of ref document f/p: P |
|
8339 | Ceased/non-payment of the annual fee |