US20040214488A1 - Two scrim laminate - Google Patents

Two scrim laminate Download PDF

Info

Publication number
US20040214488A1
US20040214488A1 US10/853,095 US85309504A US2004214488A1 US 20040214488 A1 US20040214488 A1 US 20040214488A1 US 85309504 A US85309504 A US 85309504A US 2004214488 A1 US2004214488 A1 US 2004214488A1
Authority
US
United States
Prior art keywords
scrim
laminate construction
coated
coating
open area
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.)
Abandoned
Application number
US10/853,095
Inventor
Brian Buscher
George Hart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US10/853,095 priority Critical patent/US20040214488A1/en
Publication of US20040214488A1 publication Critical patent/US20040214488A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47GHOUSEHOLD OR TABLE EQUIPMENT
    • A47G27/00Floor fabrics; Fastenings therefor
    • A47G27/02Carpets; Stair runners; Bedside rugs; Foot mats
    • A47G27/0212Carpets; Stair runners; Bedside rugs; Foot mats to support or cushion
    • A47G27/0231Carpets; Stair runners; Bedside rugs; Foot mats to support or cushion for fighting fatigue
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102Woven scrim
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102Woven scrim
    • Y10T442/15Including a foam layer
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102Woven scrim
    • Y10T442/153Including an additional scrim layer
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102Woven scrim
    • Y10T442/172Coated or impregnated
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102Woven scrim
    • Y10T442/172Coated or impregnated
    • Y10T442/176Three or more layers
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102Woven scrim
    • Y10T442/172Coated or impregnated
    • Y10T442/178Synthetic polymeric fiber
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/10Scrim [e.g., open net or mesh, gauze, loose or open weave or knit, etc.]
    • Y10T442/102Woven scrim
    • Y10T442/183Synthetic polymeric fiber
    • 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
    • Y10T442/00Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2738Coating or impregnation intended to function as an adhesive to solid surfaces subsequently associated therewith

Definitions

  • the present invention relates to the field of matting products, and more particularly to a two scrim laminate matting.
  • the solid surface design is typically constructed of a solid sheet of polyvinyl chloride or rubber, used as a surface material, then bonded chemically or through the use of an adhesive to a solid layer of foamed PVC plastisol or foamed rubber. This design is primarily anti-fatigue in nature with no drain-through capabilities.
  • Designs with slots and/or holes in the surface are typically single component type materials of rubber or polyvinyl chloride, injection molded into a finished product with thicknesses that range between 1 ⁇ 4′′ to 3 ⁇ 4′′. These mats are designed to provide cushion at the work station as well as form a way of making the liquids, grease or foreign matter from that area, drain away from the foot traffic, thus allowing a more non-slip, dry and safe floor surface in which to walk and/or work on. While this format is successful in its drain-through design, it has little to no anti-fatigue qualities, and the surface is still slippery under most wet conditions. The average weight of all three of these product designs, range from 11 ⁇ 2 lbs to 2 lbs per square foot.
  • these mats are typically mechanically fastened to additional pieces of matting and/or fastened to metal framework, which is then fastened to the floor surface. While this solves the movement issue it creates another problem; this option severely limits the ability of a person to properly clean the mat and/or the surface below and around the mat because of the process of fastening the pieces to other pieces or metal framework.
  • the present invention provides a drain-through type of designed portable work and walking surface matting, which has the size, weight and slip resistant characteristics, as well as the anti-fatigue properties which make it a more desirable surface on which to walk and work.
  • the invention consists of the lamination of two dimensionally unstable or stable coated scrims to produce a dimensionally stable laminate. Each coated scrim has a plurality of openings extending through the scrim. The lower surface of the first coated scrim is permanently bonded to the upper surface of the second coated scrim.
  • FIG. 1 is a side elevation schematic view illustrating a representative construction of the two scrim laminate matting of the present invention.
  • the invention consists of the lamination of two dimensionally stable or unstable coated scrims to produce a dimensionally stable laminate.
  • Each coated scrim has opposite first and second sides and a plurality of openings extending through the scrim.
  • the second side of the first coated scrim is permanently bonded to the first side of the second coated scrim.
  • the coated scrims are produced by a number of manufacturers including, but not limited to, Leggett and Platt, MSM Industries, Griptex Industries, Friedola, American Non-Slip Products and NuSource. There are numerous combinations of scrim laminations that can be achieved using commercially available coated scrims but a limited number are included herein for illustrative purposes.
  • a two scrim laminate is formed by the combination of a foamed PVC plastisol coated first scrim sold under the trade name of Sympa-Nova (Friedola) with an unfoamed PVC plastisol coated second scrim sold under the trade names of Super Line It (Leggett and Platt) or Translucent (MSM Industries).
  • the first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating.
  • the second scrim is a knitted polyester and typically weighs 16-26 ounces per square yard and has an open area of 25-45% depending on the exact weight of the coating.
  • the first and second scrims are laminated together using a quick-setting two component polyurea adhesive with a tack free time of less than two (2) minutes.
  • the adhesive is sprayed on the lower surface of first scrim and on the upper surface of second scrim prior to the two surfaces being contacted and pressed together to produce the laminate.
  • the adhesive could be applied by other means such as roller coating, knife coating and the like and does not have to be applied to both surfaces, but experience shows the strength of the bond is increased by doing so.
  • a foamed PVC plastisol coated first scrim sold under the trade names of Premier (American Non-Slip Products) or Sultan (Leggett and Platt) is combined with a foamed PVC plastisol coated second scrim sold under the trade names of Rug Safe (Leggett and Platt) or Gripper Loc (American Non-Slip Products).
  • the first scrim is a knitted polyester and typically weighs 13-26 ounces per square yard and has an open area of 10-40% depending on the exact weight of the coating.
  • the second scrim is a knitted polyester and typically weighs 4-7 ounces per square yard and has a 50-80% open area depending on the exact weight of the foamed PVC plastisol coating.
  • the first and second scrims are laminated together in a manner similar to the lamination process of Example 1.
  • a laminate is formed by a combination of a foamed PVC plastisol coated first scrim sold under the trade name of Sympa-Nova (Friedola) with a foamed PVC plastisol coated second scrim with an open area of approximately 80%.
  • the first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating.
  • the second scrim is a knitted polyester and typically weighs 2-5 ounces per square yard and has an open area of 65-80% depending on the exact weight of the coating.
  • the first and second scrims are laminated together in a manner similar to the lamination process of Example 1.
  • a foamed PVC plastisol coated first scrim sold under the trade name Sympa-Nova (Friedola) is combined with an unfoamed PVC plastisol coated second scrim sold under the trade names of Super Line It (Leggett and Platt) or Translucent (MSM Industries).
  • the first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating.
  • the second scrim is a knitted polyester and typically weighs 16-26 ounces per square yard and has an open area of 25-45% depending on the exact weight of the coating.
  • the scrims are laminated together using a solvent based nitrile adhesive hand troweled on the lower surface of the first scrim prior to the surfaces being contacted and pressed together to produce the laminate.
  • the adhesive could be applied by other means such as roller coating, knife coating, spraying and the like.
  • a laminate is formed by a combination of a foamed PVC plastisol coated first scrim sold under the trade name of Sympa-Nova (Friedola) with an unfoamed PVC plastisol coated second scrim sold under the trade names of Super Line It (Leggett and Platt) or Translucent (MSM Industries).
  • the first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating.
  • the second scrim is a knitted polyester and typically weighs 16-26 ounces per square yard and has an open area of 25-45% depending on the exact weight of the coating.
  • the scrims are laminated together using a one component moisture cure urethane adhesive hand troweled on the lower surface of the first scrim prior to the surfaces being contacted and pressed together to produce the laminate.
  • the adhesive could be applied by other means such as roller coating, knife coating, spraying and the like.
  • An additional embodiment of the invention combines a foamed PVC plastisol coated first scrim sold under the trade name of Sympa-Nova (Friedola) with a foamed latex coated polypropylene second scrim sold under the trade name Natura Lock.
  • the latex is a mixture of natural and synthetic latexes.
  • the first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating.
  • the second scrim is a woven polypropylene scrim and typically weighs 8-12 ounces per square yard and has an open area of 25-50% depending on the exact weight of the coating.
  • the scrims are laminated together in a manner similar to the lamination process of Example 1.
  • Yet another embodiment of the invention combines a foamed PVC plastisol coated first scrim sold under the trade name Sympa-Nova (Friedola) with a foamed latex coated jute second scrim.
  • the latex is a mixture of natural and synthetic latexes.
  • the first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating.
  • the second scrim is a woven natural jute scrim and typically weighs 4-8 ounces per square yard and has an open area of 40-70% depending on the exact weight of the coating.
  • the first and second scrims are laminated together in a manner similar to the lamination process of Example 1.
  • the first coated scrim is formed by coating an open-weave fabric, referred to in the trade as scrim, with a natural or synthetic polymer.
  • the scrim is made of natural or synthetic fibers that are knitted or woven into a network having intermittent openings spaced along the surface of the scrim.
  • the preferred coating is made of PVC plastisol and can be foamed or un-foamed.
  • Other embodiments of the invention though can have the coating material made of polyurethanes, acrylics, thermoplastic elastomers, and natural or synthetic rubbers all of which can be foamed or un-foamed. Coating weights are 6 to 36 ounces per square yard.
  • the upper surface of the first coated scrim can be untreated or can be embossed or coated with an additional secondary coating to provide for additional wear, slip, or chemical resistance.
  • the secondary coating can be applied using spray, roller or knife coating equipment.
  • additional coatings include, but are not limited to, urethanes, acrylics, and natural or synthetic rubber latexes.
  • An additional embodiment includes a granular additive added to the secondary coating to provide for an even greater resistance to slipping.
  • the second coated scrim is formed by coating a scrim with a natural or synthetic polymer. It is preferable, but not necessary, to have the second scrim a different open-weave pattern than the first scrim as this leads to additional dimensional stability.
  • the preferred coating on the second scrim is unfoamed PVC plastisol, but foamed plastisol, urethanes, acrylics, thermoplastic elastomers, and natural or synthetic rubbers can also be used. Coating weights for the second coated scrim are of 4 to 32 ounces per square yard.
  • an additional coating can be applied to the second surface to increase slip, wear, or chemical resistance.
  • the secondary coating can be applied to both surfaces of the second scrim.
  • the individual coated scrims should have no less than 2% open area to allow liquids to pass through. At least one of the scrims should have no more than 80% open area to provide for adequate dimensional stability of the laminate. These areas are measured in a cross section taken in the plane of the scrim.
  • adhesives can be used to provide adhesion. These adhesives can be dried or cured at room temperature or can be forced to cure or dry at elevated temperatures in an oven or other curing devise. Adhesives can be chosen from those readily recognizable as serviceable for the types of polymers used in the coating process.
  • the preferred adhesive is a two component polyurea adhesive but other adhesives can be used including, but not limited to, acrylics, urethanes, vinyls, and other synthetic water and solvent based adhesives.
  • the two scrim laminate matting can be used as a safety pad for walking in food preparation areas of restaurants, grocery stores, and food manufacturing facilities. It is lightweight and can be custom fitted to differing configurations.
  • the two scrim laminate matting can also be used as a replacement for the common anti-fatigue mat. By being light weight, the mat is more easily moved, more easily cleaned, and is more easily cut and re-manufactured into custom configurations.

Abstract

The present invention provides a drain-through type of designed portable work and walking surface matting, which has the size, weight and slip resistant characteristics, as well as the anti-fatigue properties which make it a more desirable surface on which to walk and work. The invention consists of the lamination of two dimensionally stable or unstable coated scrims to produce a dimensionally stable laminate. Each coated scrim has a plurality of openings extending through the scrim. The lower surface of the first coated scrim is permanently bonded to the upper surface of the second coated scrim.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • Not applicable. [0001]
  • STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
  • Not applicable. [0002]
  • REFERENCE TO MICROFICHE APPENDIX
  • Not applicable. [0003]
  • BACKGROUND OF THE INVENTION
  • 1. Field of the Invention [0004]
  • The present invention relates to the field of matting products, and more particularly to a two scrim laminate matting. [0005]
  • 2. Description of Related Art [0006]
  • Commercial kitchen work areas, chemical display aisles in retail stores, industrial work stations in manufacturing assembly lines, walk ways around swimming pools, metal roofs on buildings as well as many other related type areas—all have a common concern of safely allowing people—both customer and employee to pass through, work and/or purchase products and services in these areas without the threat of slipping, tripping and falling due to slippery floor and work surface conditions. In the example of workstations, back, leg and joint fatigue on the person performing a task in these particular areas further compounds an already bad situation. [0007]
  • The most typical solution to this problem is to provide a floor matting product. Many different variations exist in a typical floor mat design. These include but are not limited to three such designs as solid surface cushioned type mats, surfaces slotted like a grate as well as surfaces with large diameter holes. [0008]
  • The solid surface design is typically constructed of a solid sheet of polyvinyl chloride or rubber, used as a surface material, then bonded chemically or through the use of an adhesive to a solid layer of foamed PVC plastisol or foamed rubber. This design is primarily anti-fatigue in nature with no drain-through capabilities. [0009]
  • Designs with slots and/or holes in the surface are typically single component type materials of rubber or polyvinyl chloride, injection molded into a finished product with thicknesses that range between ¼″ to ¾″. These mats are designed to provide cushion at the work station as well as form a way of making the liquids, grease or foreign matter from that area, drain away from the foot traffic, thus allowing a more non-slip, dry and safe floor surface in which to walk and/or work on. While this format is successful in its drain-through design, it has little to no anti-fatigue qualities, and the surface is still slippery under most wet conditions. The average weight of all three of these product designs, range from 1½ lbs to 2 lbs per square foot. [0010]
  • All three of these matting designs are prone to be extremely heavy because of the materials they are constructed of and the processes used to manufacture them. This weight issue makes it hard to move the mat when one is trying to clean the mat and/or the underlying floor surface. The capability of certain people to be able to move the product, or be injured by moving the product due to its weight thus becomes a problem. There are two basic ways to solve this weight issue. One solution is to design or manufacture lighter weight versions of these same types of mats. The other is to manufacture these mat designs in small 12 inch -18 inch squares. In terms of the lighter weight solution, this solves the weight issue but creates yet another problem; these lighter weight mats tend to move and slide across the floor surface, thus becoming a liability/safety concern. To address this problem, these mats are typically mechanically fastened to additional pieces of matting and/or fastened to metal framework, which is then fastened to the floor surface. While this solves the movement issue it creates another problem; this option severely limits the ability of a person to properly clean the mat and/or the surface below and around the mat because of the process of fastening the pieces to other pieces or metal framework. [0011]
  • The second option of creating small 12 inch-18 inch squares solves the weight issue because the squares can be more easily picked up (less weight compared to a full size mat). The theory is that since the pieces can easily be picked up, they can then be cleaned as well as the floor surface beneath. The problem is that no one then wants to take the time to reassemble all the pieces once they are cleaned. [0012]
  • The other major problem besides the weight (as described above) of all of these basic matting designs is the small size of the finished mat in these same designs. In an ideal situation, one large mat would cover an intended area versus multiple mats or multiple squares. But, because of the manufacturing processes that are used to construct the basic matting designs described above, the products are limited to certain size restrictions. As a practical matter, the molds used in injection molding can only be a certain size, which in turn limits the mats to a certain size. There is also a direct correlation between the heavy product and the size. The process of heavy injection molded products means even if you wanted to make them bigger, no one will be physically able to move them. Because of this size restriction, multiple mats are generally required to cover a specific area where a large mat would be more desirable. Multiple mats generally mean that edges of mats are over-lapped and improper sizes create an open area of the floor surface, because the mat was a common size mat made to fit an uncommon shaped area. While reducing liability was the initial primary concern in placing these mats, a potential increase in liability might be the result of poorly fitted and configured mats. [0013]
  • Those concerned with these and other problems recognize the longstanding need for an improved matting product, and the provision of such a product is a stated objective of the present invention. [0014]
  • BRIEF SUMMARY OF THE INVENTION
  • Briefly stated, the present invention provides a drain-through type of designed portable work and walking surface matting, which has the size, weight and slip resistant characteristics, as well as the anti-fatigue properties which make it a more desirable surface on which to walk and work. The invention consists of the lamination of two dimensionally unstable or stable coated scrims to produce a dimensionally stable laminate. Each coated scrim has a plurality of openings extending through the scrim. The lower surface of the first coated scrim is permanently bonded to the upper surface of the second coated scrim. [0015]
  • BRIEF DESCRIPTION OF THE VIEW OF THE DRAWING
  • These and other attributes of the invention will become more clear upon a thorough study of the following description of the best mode for carrying out the invention, particularly when reviewed in conjunction with the drawings, wherein: [0016]
  • FIG. 1 is a side elevation schematic view illustrating a representative construction of the two scrim laminate matting of the present invention.[0017]
  • DETAILED DESCRIPTION OF THE INVENTION
  • The invention consists of the lamination of two dimensionally stable or unstable coated scrims to produce a dimensionally stable laminate. Each coated scrim has opposite first and second sides and a plurality of openings extending through the scrim. The second side of the first coated scrim is permanently bonded to the first side of the second coated scrim. The coated scrims are produced by a number of manufacturers including, but not limited to, Leggett and Platt, MSM Industries, Griptex Industries, Friedola, American Non-Slip Products and NuSource. There are numerous combinations of scrim laminations that can be achieved using commercially available coated scrims but a limited number are included herein for illustrative purposes. [0018]
  • EXAMPLE 1
  • A two scrim laminate is formed by the combination of a foamed PVC plastisol coated first scrim sold under the trade name of Sympa-Nova (Friedola) with an unfoamed PVC plastisol coated second scrim sold under the trade names of Super Line It (Leggett and Platt) or Translucent (MSM Industries). The first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating. The second scrim is a knitted polyester and typically weighs 16-26 ounces per square yard and has an open area of 25-45% depending on the exact weight of the coating. The first and second scrims are laminated together using a quick-setting two component polyurea adhesive with a tack free time of less than two (2) minutes. The adhesive is sprayed on the lower surface of first scrim and on the upper surface of second scrim prior to the two surfaces being contacted and pressed together to produce the laminate. The adhesive could be applied by other means such as roller coating, knife coating and the like and does not have to be applied to both surfaces, but experience shows the strength of the bond is increased by doing so. [0019]
  • EXAMPLE 2
  • A foamed PVC plastisol coated first scrim sold under the trade names of Premier (American Non-Slip Products) or Sultan (Leggett and Platt) is combined with a foamed PVC plastisol coated second scrim sold under the trade names of Rug Safe (Leggett and Platt) or Gripper Loc (American Non-Slip Products). The first scrim is a knitted polyester and typically weighs 13-26 ounces per square yard and has an open area of 10-40% depending on the exact weight of the coating. The second scrim is a knitted polyester and typically weighs 4-7 ounces per square yard and has a 50-80% open area depending on the exact weight of the foamed PVC plastisol coating. The first and second scrims are laminated together in a manner similar to the lamination process of Example 1. [0020]
  • EXAMPLE 3
  • A laminate is formed by a combination of a foamed PVC plastisol coated first scrim sold under the trade name of Sympa-Nova (Friedola) with a foamed PVC plastisol coated second scrim with an open area of approximately 80%. The first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating. The second scrim is a knitted polyester and typically weighs 2-5 ounces per square yard and has an open area of 65-80% depending on the exact weight of the coating. The first and second scrims are laminated together in a manner similar to the lamination process of Example 1. [0021]
  • EXAMPLE 4
  • A foamed PVC plastisol coated first scrim sold under the trade name Sympa-Nova (Friedola) is combined with an unfoamed PVC plastisol coated second scrim sold under the trade names of Super Line It (Leggett and Platt) or Translucent (MSM Industries). The first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating. The second scrim is a knitted polyester and typically weighs 16-26 ounces per square yard and has an open area of 25-45% depending on the exact weight of the coating. The scrims are laminated together using a solvent based nitrile adhesive hand troweled on the lower surface of the first scrim prior to the surfaces being contacted and pressed together to produce the laminate. The adhesive could be applied by other means such as roller coating, knife coating, spraying and the like. [0022]
  • EXAMPLE 5
  • A laminate is formed by a combination of a foamed PVC plastisol coated first scrim sold under the trade name of Sympa-Nova (Friedola) with an unfoamed PVC plastisol coated second scrim sold under the trade names of Super Line It (Leggett and Platt) or Translucent (MSM Industries). The first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating. The second scrim is a knitted polyester and typically weighs 16-26 ounces per square yard and has an open area of 25-45% depending on the exact weight of the coating. The scrims are laminated together using a one component moisture cure urethane adhesive hand troweled on the lower surface of the first scrim prior to the surfaces being contacted and pressed together to produce the laminate. The adhesive could be applied by other means such as roller coating, knife coating, spraying and the like. [0023]
  • EXAMPLE 6
  • An additional embodiment of the invention combines a foamed PVC plastisol coated first scrim sold under the trade name of Sympa-Nova (Friedola) with a foamed latex coated polypropylene second scrim sold under the trade name Natura Lock. The latex is a mixture of natural and synthetic latexes. The first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating. The second scrim is a woven polypropylene scrim and typically weighs 8-12 ounces per square yard and has an open area of 25-50% depending on the exact weight of the coating. The scrims are laminated together in a manner similar to the lamination process of Example 1. [0024]
  • EXAMPLE 7
  • Yet another embodiment of the invention combines a foamed PVC plastisol coated first scrim sold under the trade name Sympa-Nova (Friedola) with a foamed latex coated jute second scrim. The latex is a mixture of natural and synthetic latexes. The first scrim is a knitted polyester and typically weighs 24 to 36 ounces per square yard and has an open area of 2-20% depending on the exact weight of the coating. The second scrim is a woven natural jute scrim and typically weighs 4-8 ounces per square yard and has an open area of 40-70% depending on the exact weight of the coating. The first and second scrims are laminated together in a manner similar to the lamination process of Example 1. [0025]
  • These above examples capture the essence of the different embodiments. Examples of different scrims are captured; knitted polyester, woven polypropylene, woven jute. Examples of different adhesives are captured; two component polyurea, solvent based nitrile, one component moisture cure urethane. Examples of different weights and open areas are captured. Commercially available coated scrims used in Examples 1-7 have been analyzed with the results shown in Table 1. [0026]
    TABLE 1
    SCRIM ANALYSIS
    Product
    Product Manufacturer Weight Coverage Open Area
    Rug Safe Leggett Platt  6.1 oz. per yard 46.70% 53.30%
    Gripper Loc American Non-Slip  4.6 oz. per yard 29.60% 70.40%
    Slipnot Leggett Platt  6.1 oz. per yard 85.90% 14.10%
    Sliplock American Non-Slip  7.4 oz. per yard 91.50% 8.50%
    Premiere American Non-Slip 15.3 oz. per yard 81.90% 18.10%
    Translucent MSM Industries 12.9 oz. per yard 57.60% 42.40%
    Sympa-Nova Friedola 31.7 oz. per yard 83.10% 16.90%
    Sultan Leggett Platt 13.8 oz. per yard 61.50% 38.50%
    Super Line It Leggett Platt 18.6 oz. per yard 59.40% 40.80%
    Natura-Lock MSM Industries  9.5 oz. per yard 62.20% 37.80%
    Ultra-Stop Natural MSM Industries  5.2 oz. per yard 35.20% 64.80%
  • [0027]
    Manufacturer Addresses:
    MSM Industries Leggett & Platt, Inc.
    802 Swan Drive Vantage Industries, Inc.
    Smyrna, TN 37167 4530-F Patton Drive East
    P.O. Box 43944
    Atlanta, GA 30336
    Friedola Gebr. Holzapfel American Non-Slip Products
    GmbH & Co. KG 6775 Meadow Lane
    Topfmuhle 1 Alpharetta, GA 30005
    37276 Meinhard-Frieda
    Germany
  • In the preferred embodiment, the first coated scrim is formed by coating an open-weave fabric, referred to in the trade as scrim, with a natural or synthetic polymer. The scrim is made of natural or synthetic fibers that are knitted or woven into a network having intermittent openings spaced along the surface of the scrim. The preferred coating is made of PVC plastisol and can be foamed or un-foamed. Other embodiments of the invention though can have the coating material made of polyurethanes, acrylics, thermoplastic elastomers, and natural or synthetic rubbers all of which can be foamed or un-foamed. Coating weights are 6 to 36 ounces per square yard. [0028]
  • The upper surface of the first coated scrim can be untreated or can be embossed or coated with an additional secondary coating to provide for additional wear, slip, or chemical resistance. The secondary coating can be applied using spray, roller or knife coating equipment. In addition, when treating the original coated scrim with a secondary coating, it may be more efficient to dip coat the entire scrim and put the additional coating on both the upper and lower surfaces of the original coated scrim even though the treatment is only necessary for the upper surface of the first coated scrim. The same holds true for the lower surface of the second coated scrim. Examples of additional coatings include, but are not limited to, urethanes, acrylics, and natural or synthetic rubber latexes. An additional embodiment includes a granular additive added to the secondary coating to provide for an even greater resistance to slipping. [0029]
  • The second coated scrim is formed by coating a scrim with a natural or synthetic polymer. It is preferable, but not necessary, to have the second scrim a different open-weave pattern than the first scrim as this leads to additional dimensional stability. The preferred coating on the second scrim is unfoamed PVC plastisol, but foamed plastisol, urethanes, acrylics, thermoplastic elastomers, and natural or synthetic rubbers can also be used. Coating weights for the second coated scrim are of 4 to 32 ounces per square yard. As with the first coated scrim, an additional coating can be applied to the second surface to increase slip, wear, or chemical resistance. Again, as with the first scrim, the secondary coating can be applied to both surfaces of the second scrim. [0030]
  • The individual coated scrims should have no less than 2% open area to allow liquids to pass through. At least one of the scrims should have no more than 80% open area to provide for adequate dimensional stability of the laminate. These areas are measured in a cross section taken in the plane of the scrim. [0031]
  • Depending on the exact coatings used, numerous adhesives can be used to provide adhesion. These adhesives can be dried or cured at room temperature or can be forced to cure or dry at elevated temperatures in an oven or other curing devise. Adhesives can be chosen from those readily recognizable as serviceable for the types of polymers used in the coating process. The preferred adhesive is a two component polyurea adhesive but other adhesives can be used including, but not limited to, acrylics, urethanes, vinyls, and other synthetic water and solvent based adhesives. [0032]
  • The two scrim laminate matting can be used as a safety pad for walking in food preparation areas of restaurants, grocery stores, and food manufacturing facilities. It is lightweight and can be custom fitted to differing configurations. The two scrim laminate matting can also be used as a replacement for the common anti-fatigue mat. By being light weight, the mat is more easily moved, more easily cleaned, and is more easily cut and re-manufactured into custom configurations. [0033]
  • Although only an exemplary embodiment of the invention has been described in detail above, those skilled in the art will readily appreciate that many modifications are possible without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of this invention as defined in the following claims. [0034]

Claims (20)

We claim:
1. A laminate construction, comprising:
a first scrim having an open area;
a first coating applied to the first scrim to form first coated scrim having an upper surface, a lower surface, and an open area ranging from 2% to 80%;
a second scrim having an open area to form a second coated scrim having an upper surface, a lower surface, and an open area ranging from 2% to 80%;
a second coating applied to the second scrim; and
an adhesive applied to one of the lower surfaces of the first coat and scrim, and the upper surface of the second coat and scrim, whereby the first coated scrim and the second coated scrim are bonded together to form a two scrim laminate.
2. The laminate construction of claim 1 wherein the first coated scrim has an open area ranging from 2% to 20%.
3. The laminate construction of claim 1 wherein the second coated scrim has an open area ranging from 25% to 45%.
4. The laminate construction of claim 2 wherein the second coated scrim has an open area ranging from 25% to 45%.
5. The laminate construction of claim 1 wherein the first scrim is a polyester.
6. The laminate construction of claim 5 wherein the first scrim is a knitted polyester.
7. The laminate construction of claim 6 wherein the first coating is a formed PVC plastisol.
8. The laminate construction of claim 1 wherein the second scrim is a polyester.
9. The laminate construction of claim 8 wherein the second scrim is a knitted polyester.
10. The laminate construction of claim 9 wherein the second coating is an unfoamed PVC plastisol.
11. The laminate construction of claim 7 wherein the second scrim is polyester.
12. The laminate construction of claim 11 wherein the second scrim is a knitted polyester.
13. The laminate construction of claim 12 wherein the second coating is an unfoamed PVC plastisol.
14. The laminate construction of claim 1 wherein the first srim is selected from the group consisting of polyester, polypropylene and jute.
15. The laminate construction of claim 1 wherein the first coating is selected from the group consisting of PVC plastisol, latex, polyurethanes, acrylics and thermoplastic elastomers.
16. The laminate construction of claim 1 wherein the second scrim is selected from the group consisting of polyester, polypropylene and jute.
17. The laminate construction of claim 1 wherein the second coating is selected from the group consisting of PVC plastisol, latex, polyurethanes, acrylics and thermoplastic clastomers.
18. The laminate construction of claim 1 wherein the adhesive is a two component polyurea adhesive.
19. The laminate construction of claim 13 wherein the adhesive is a two component polyurea adhesive.
20. The laminate construction of claim 1 wherein the adhesive is selected from the group consisting of two component polyurea adhesives, solvent based nitrile, adhesive, one component moisture cure urethane adhesives, acrylics and vinyls.
US10/853,095 2002-08-06 2004-05-24 Two scrim laminate Abandoned US20040214488A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/853,095 US20040214488A1 (en) 2002-08-06 2004-05-24 Two scrim laminate

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/213,056 US6794316B1 (en) 2002-08-06 2002-08-06 Two scrim laminate
US10/853,095 US20040214488A1 (en) 2002-08-06 2004-05-24 Two scrim laminate

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US10/213,056 Continuation US6794316B1 (en) 2002-08-06 2002-08-06 Two scrim laminate

Publications (1)

Publication Number Publication Date
US20040214488A1 true US20040214488A1 (en) 2004-10-28

Family

ID=32986961

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/213,056 Expired - Fee Related US6794316B1 (en) 2002-08-06 2002-08-06 Two scrim laminate
US10/853,095 Abandoned US20040214488A1 (en) 2002-08-06 2004-05-24 Two scrim laminate

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US10/213,056 Expired - Fee Related US6794316B1 (en) 2002-08-06 2002-08-06 Two scrim laminate

Country Status (1)

Country Link
US (2) US6794316B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050037678A1 (en) * 2003-08-11 2005-02-17 Mack Patrick E. Open grid fabric resin infusion media and reinforcing composite lamina
US20050124239A1 (en) * 2003-12-04 2005-06-09 Griner Waymon B.Jr. System and method for reinforcing wallboard
TWM277386U (en) * 2005-03-18 2005-10-11 Jin-Fa Wang Skidproof carpet structure
CA2559160A1 (en) * 2005-09-07 2007-03-07 Benjamin Obdyke Incorporated Composite building material for cementitious material wall assembly
TWI597172B (en) * 2013-10-04 2017-09-01 隆芳興業股份有限公司 Reusable modeling breathable fabric assembly
US9873963B2 (en) * 2014-03-17 2018-01-23 Mindsinsync Inc. Spacer mesh mat base

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US170254A (en) * 1875-11-23 Improvement in apparatus for the manufacture of spirits
US3922454A (en) * 1974-11-29 1975-11-25 Armstrong Cork Co Secondary backing for carpeting
US4444822A (en) * 1983-03-21 1984-04-24 Howe & Bainbridge Sailcloth
US4539254A (en) * 1982-11-24 1985-09-03 Bay Mills Limited Reinforcing composite for roofing membranes and process for making such composites
US4810568A (en) * 1983-01-31 1989-03-07 Chicopee Reinforced fabric laminate and method for making same
US4921752A (en) * 1988-08-11 1990-05-01 Milliken Research Corporation Laminated seat fabric
US5001003A (en) * 1988-08-17 1991-03-19 North Sails Group, Inc. Laminated sailcloth with scrim
US5139841A (en) * 1991-03-27 1992-08-18 James River Corporation Of Virginia Superabsorbent towel with scrim reinforcement
US5258585A (en) * 1991-02-20 1993-11-02 Indian Head Industries, Inc. Insulating laminate
US5302099A (en) * 1992-09-28 1994-04-12 E. I. Du Pont De Nemours And Company Laminated fabric useful as a concrete form liner
US5491022A (en) * 1993-09-24 1996-02-13 Lakeland Industries, Inc. Protective fabrics and garments
US5494720A (en) * 1994-08-29 1996-02-27 Lakeland Industries, Inc. Seams and closures for plastic fabrics and clothing
US5707903A (en) * 1995-12-27 1998-01-13 Griptex Industries, Inc. Decorative non-slip liner
US5906878A (en) * 1995-10-02 1999-05-25 Horning; Deborah K. Apparatus and method for deterring slippage of a slip cover or cushion placed on furniture
US6070629A (en) * 1997-06-06 2000-06-06 Whiteside; Larry L. Protective vehicle cover
US6257160B1 (en) * 2000-03-07 2001-07-10 Fred Aivars Keire Sail of woven material and method of manufacture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6742313B2 (en) * 2001-03-15 2004-06-01 R.S. Associates, Inc. Non-cellular adhesive for composite roof structure

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US170254A (en) * 1875-11-23 Improvement in apparatus for the manufacture of spirits
US3922454A (en) * 1974-11-29 1975-11-25 Armstrong Cork Co Secondary backing for carpeting
US4539254A (en) * 1982-11-24 1985-09-03 Bay Mills Limited Reinforcing composite for roofing membranes and process for making such composites
US4810568A (en) * 1983-01-31 1989-03-07 Chicopee Reinforced fabric laminate and method for making same
US4444822A (en) * 1983-03-21 1984-04-24 Howe & Bainbridge Sailcloth
US4921752A (en) * 1988-08-11 1990-05-01 Milliken Research Corporation Laminated seat fabric
US5001003A (en) * 1988-08-17 1991-03-19 North Sails Group, Inc. Laminated sailcloth with scrim
US5258585A (en) * 1991-02-20 1993-11-02 Indian Head Industries, Inc. Insulating laminate
US5139841A (en) * 1991-03-27 1992-08-18 James River Corporation Of Virginia Superabsorbent towel with scrim reinforcement
US5302099A (en) * 1992-09-28 1994-04-12 E. I. Du Pont De Nemours And Company Laminated fabric useful as a concrete form liner
US5491022A (en) * 1993-09-24 1996-02-13 Lakeland Industries, Inc. Protective fabrics and garments
US5494720A (en) * 1994-08-29 1996-02-27 Lakeland Industries, Inc. Seams and closures for plastic fabrics and clothing
US5906878A (en) * 1995-10-02 1999-05-25 Horning; Deborah K. Apparatus and method for deterring slippage of a slip cover or cushion placed on furniture
US5707903A (en) * 1995-12-27 1998-01-13 Griptex Industries, Inc. Decorative non-slip liner
US6070629A (en) * 1997-06-06 2000-06-06 Whiteside; Larry L. Protective vehicle cover
US6257160B1 (en) * 2000-03-07 2001-07-10 Fred Aivars Keire Sail of woven material and method of manufacture

Also Published As

Publication number Publication date
US6794316B1 (en) 2004-09-21

Similar Documents

Publication Publication Date Title
US20180125277A1 (en) Mat
US10172491B2 (en) Floor matting
US6921502B1 (en) Cushioned rubber floor mat article and method
EP0073222B1 (en) Anti-slip mat and method of making the same
AU766307B2 (en) Cleat-forming woven fabric article for the manufacture of anti-creep floor mats
US20030170420A1 (en) Residential carpet product and method
CA2305819A1 (en) Cushioned carpeted floor covering article comprising at least one integrated rubber protrusion
US6794316B1 (en) Two scrim laminate
WO2018194528A1 (en) Composite material production by using physically recycled flexible polyurethane foam and spray polyurea coating
MXPA05003883A (en) Improved underpad system.
US4731275A (en) Carpet assembly which resists lateral movement and process of producing the same
KR20180067504A (en) Embossed fabric assembly
US4985279A (en) Process for preparing carpet underlay
US6438908B1 (en) Method of installing wall-to-wall carpet and improved carpet
WO2002017759A2 (en) Cushioned rubber floor mat article and method
US20200315385A1 (en) Therapy platform multi-layer anti-fatigue matting
US10081156B2 (en) Movement-resistant floor mat
US20130122243A1 (en) Resilience cushion mat
CN112996607B (en) Composition and flooring product comprising such a composition
US20080190877A1 (en) Novel Surface Coverings
US20210153677A1 (en) Anti-Skid Mat
WO2008012804A1 (en) Anti-skid floor covering
EP1276924B1 (en) Cleat-forming woven fabric article for the manufacture of anti-creep floor mats
US10683607B2 (en) Slip-resistant protective mat
KR101452444B1 (en) Indoor step plate

Legal Events

Date Code Title Description
STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION