Patent ID: 6306781
Filing Date: 2001-10-23
Classification: B29C,Y10T

Abstract:
An expansion joint patch apparatus for repairing failed or torn existing expansion joint belting, the patch apparatus comprising:a substantially flat, woven, substrate material for repairing failed expansion joints;the substrate material being selected from the group consisting of aramid, fiberglass, corrosion resistant alloy wire, polyester, ceramic and poly-paraphenylene terephthhalamide fiber fabrics;a volatile solution of suspended elastomer coating the substrate material to, in turn, reduce the permeability of the patch apparatus, the substrate material being substantially, fully impregnated with the elastomer;the elastomer being selected from the group consisting of chloroprene, chlorosulfonated polyethylene, ethylene propylene, chloronated isobutylene isoprene, fluoroelastomers and silicone rubbers;an adhesive caulk for sealing the coated substrate material to an expansion joint region to maintain attachment of the substrate material and the expansion joint region, and to ensure sealing of the substrate material and the expansion joint region while preventing corrosion in the expansion joint, the caulk being flexible and providing leakproof sealing, wherein the caulk includes vinylidene fluoride and hexafluoropropylene.