Patent ID: 6365250
Filing Date: 2002-04-02
Classification: B32B,C08L,F16L,H04J,H04L,H04Q,Y10T

Abstract:
In a method of making a flexible hose construction comprising the steps of forming a barrier layer tube made of a polymeric material and forming a protective cover layer in telescoping relation surrounding said barrier layer tube, the improvement wherein said polymeric material comprises a blend of about 20 to 80 weight percent of a first fluoropolymer having a fluorine content of about 65 to 73 weight percent with about 80 to 20 weight percent of a second fluoropolymer having a fluorine content of about 70 to 75 weight percent, said first fluoropolymer comprising a copolymer or terpolymer formed by the copolymerization of two or more monomers selected from the group consisting of hexafluoropropylene, vinylidene fluoride and tetrafluoroethylene monomers, and said second fluoropolymer comprising a terpolymer formed by the copolymerization of hexafluoropropylene, vinylidene fluoride and tetrafluoroethylene monomers, wherein said first fluoropolymer exhibits elastomeric characteristics and said second fluoropolymer exhibits thermoplastic characteristics.