Patent ID: 8356638

Claim:
A multi-layer hose comprising: an intermediate layer consisting of consisting of polybutylene naphthalate; an outer layer comprising epichlorohydrin rubber (ECO) and disposed outside the intermediate layer; and an inner layer consisting of at least one of vinylidene fluoride-hexafluoropropylene binary copolymer fluororubber, vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene ternary copolymer fluororubber, and tetrafluoroethylene-propylene-vinylidene fluoride ternary copolymer fluororubber, the inner layer being disposed inside the intermediate layer, wherein the intermediate layer and the inner layer are directly laminated to be in contact with each other, wherein the inner layer and intermediate layer are adhered to each other using a primary vulcanization and a secondary vulcanization, and wherein the hose comprises no adhesive between the intermediate layer and the inner layer.