Patent ID: 8757214

Claim:
A three-layer hose comprising: a laminated three-layer structure consisting of: an intermediate layer including a resin containing a polyester or a polyamide; an inner layer disposed on an inner periphery of the intermediate layer and consisting of epichlorohydrin rubber or hydrin rubber; and an outer layer disposed on an outer periphery of the intermediate layer and containing a rubber, wherein the rubber of the inner layer is in direct contact with the resin of the intermediate layer, with no intervening layer disposed therebetween, wherein the rubber of the inner layer is directly laminated to the resin of the intermediate layer by vulcanized adhesion, and wherein the laminated layer structure consisting of the intermediate layer, inner layer, and outer layer is formed using multi-layer extrusion such that each of the intermediate layer, the inner layer, and the outer layer has a continuous cylindrical cross-section.