# US 6,294,488 B1 · Composite expansion joint material > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,294,488 B1 - Document ID: US6294488B1 - Status: Granted - Kind: B1 - Application number: 09/267,592 - Filed: 1999-03-12 - Granted: 2001-09-25 - Earliest claimed: 1999-03-12 - Assignees: Textiles Coated Incorporated - Inventors: Stephen W. Tippett - Web page: https://patentgrep.com/patent/US6294488B1 ## CPC - B32B 27/28: comprising synthetic resins not wholly covered by any one of the sub-groups {B32B27/30 - B32B27/42} - B32B 5/12: characterised by the relative arrangement of fibres or filaments of {different layers, e.g. the fibres or filaments being parallel or perpendicular to each other} - Y10T 156/10: Methods of surface bonding and/or assembly therefor - Y10T 156/1052: with cutting, punching, tearing or severing - Y10T 428/164: Continuous two dimensionally sectional layer - Y10T 442/3016: Including a preformed layer other than the elastic woven fabric [e.g., fabric or film or foil or sheet layer, etc.] - Y10T 442/3024: Including elastic strand or strip - Y10T 442/3065: Including strand which is of specific structural definition - Y10T 442/3659: At least one layer comprises ceramic or glass material in other than particulate form - Y10T 442/3707: Woven fabric including a nonwoven fabric layer other than paper - Y10T 442/3813: Coating or impregnation contains synthetic polymeric material - Y10T 442/3878: Fluorinated olefin polymer or copolymer sheet or film [e.g., Teflon@, etc.] - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A flexible composite expansion joint material comprises a fluoropolymer containing woven fabric substrate with mutually perpendicular warp and fill yarns. The substrate is subdivided into plural segments which are arranged successively in a longitudinally extending assembly with the warp and fill yarns of each segment extending obliquely with respect to the assembly length. At least one other component extends over the assembly length. The successively arranged substrate segments are spliced together and integrally joined to the other component by lamination under conditions of elevated temperature and pressure. ## Claims ### Claim 1 A flexible composite expansion joint material comprising: plural segments of a fluoropolymer containing woven fabric substrate, said substrate having mutually perpendicular warp and fill yarns, said segments being arranged successively in a longitudinally extending assembly with said warp and fill yarns extending obliquely with respect to the length of said assembly; and at least one other component extending over the length of said assembly, successive segments of said assembly being spliced together and integrally joined to said other component by lamination under conditions of elevated temperature and pressure. ### Claim 2 (depends on 1) The expansion joint material of claim 1 wherein said other component is a fluoropolymer fluid corrosion barrier. ### Claim 3 (depends on 1) The expansion joint material of claim 1 wherein said other component is a nonfluoropolymer thermal barrier. ### Claim 4 (depends on 1) The expansion joint material of claim 1 wherein said fluoropolymer is blended with fillers or additives selected from the group consisting of graphite, carbon black, titanium dioxide, talc, cadmium pigments, glass, metal powders and flakes, and sand, fly ash and other like high temperature mineral materials. ### Claim 5 (depends on 1) The expansion joint material of claim 1 wherein said fabric substrate is woven from materials selected from the group consisting of fiberglass, amorphous silica, graphite, polyaramides, polybenzimadazole, ceramics, metal wires and combinations thereof. ### Claim 6 (depends on 1) The expansion joint material of claim 1 wherein said segments define parallelograms with oblique angles. ### Claim 7 (depends on 6) The expansion joint material of claim 6 wherein said segments define rhomboids. ### Claim 8 (depends on 6) The expansion joint material of claim 6 wherein said segments define rhombusses. ### Claim 9 (depends on 6) The expansion joint material of claim 6 wherein said successively arranged segments have overlapping edge regions. ### Claim 10 (depends on 9) The expansion joint material of claim 9 wherein a melt bondable adhesive is interposed between said overlapping edge regions. ### Claim 11 (depends on 6) The expansion joint material of claim 6 wherein said successively arranged segments have abutting edge regions overlapped by connecting strips. ### Claim 12 (depends on 11) The expansion joint material of claim 11 wherein a melt bondable adhesive is interposed between said edge regions and said connecting strips. ### Claim 13 (depends on 10, 12) The expansion joint material of claim 10 or 12 wherein said melt bondable adhesive is a fluoropolymer. ### Claim 14 (depends on 1) The expansion joint material of claim 1 wherein said warp and fill yarns extend at 45° angles with respect to the length of said assembly. ### Claim 15 (depends on 3) The expansion joint material of claim 3 wherein said nonfluoropolymer thermal barrier component is laminated to said assembly by means of a fluoropolymer melt bondable adhesive. ### Claim 16 (depends on 15) The expansion joint material of claim 15 wherein said fluoropolymer melt bondable adhesive is applied as a coating to one surface of said thermal barrier component. ### Claim 17 (depends on 3) The expansion joint material of claim 3 wherein said thermal barrier component is selected from the group consisting of woven or nonwoven fiberglass, amorphous silica, graphite, polyaramides, polybenzimadazole and ceramic. ### Claim 18 (depends on 1) The expansion joint material of claim 1 wherein said other component comprises a fluoropolymer fluid corrosion barrier, and another component comprises a nonfluoropolymer thermal barrier. ### Claim 19 (depends on 18) The expansion joint material of claim 18 wherein said fluoropolymer fluid corrosion barrier component and said thermal barrier component are laminated to opposite sides of said assembly. ### Claim 20 (depends on 18) The expansion joint material of claim 18 wherein said assembly and said thermal barrier component are laminated to opposite sides of said fluid corrosion barrier component. ### Claim 21 (depends on 1, 13, 15) The expansion joint material of claim 1, 13 or 15 wherein said fluoropolymer is a perfluoroplastic. ### Claim 22 (depends on 21) The expansion joint material of claim 21 wherein said perfluoroplastic is blended with a fluoroelastomer. ### Claim 23 (depends on 21) The expansion joint material of claim 21 wherein said perfluoroplastic is selected from the group consisting of polytetrafluoroethylene, fluorinated ethylene propylene and perfluoroalkoxy. ### Claim 24 (depends on 23) The expansion joint material of claim 23 wherein said perfluoroplastic is polytetrafluoroethylene. ### Claim 25 (depends on 2) The expansion joint material of claim 2 wherein said fluoropolymer fluid corrosion barrier comprises at least one PTFE film which is unsintered prior to lamination.