Patent ID: 6949277

Claim:
An extruded high performance, chemical resistant hose, which withstands temperatures up to about 300° F. for prolonged periods of time, said extruded high performance, chemical resistant hose having a matrix comprising a thermoplastic vulcanizate comprising: 1) a thermoplastic polyurethane in an amount of about 30 to 70 weight % of said thermoplastic vulcanizate; 2) a chlorine-containing polyolefin in the amount of about 70 to 30 weight % of said thermoplastic vulcanizate, wherein said chlorine-containing polyolefin is a mixture of two or more members selected from the group consisting of A, B, C, D, E, E, and F, wherein A is chlorinated polyethylene, B is chlorinated polypropylene, C is chlorinated copolymers of ethylene and propylene, D is chlorosulfonated polyethylene, E is chlorosulfonated polypropylene, and F is chlorosulfonated copolymers of ethylene and propylene, with the proviso that mixtures of A & B; A & C; A & D; B & C; B & D; C & D; A, B & C; A, B & D; A, C & D; and A, B, C & D are excluded; and 3) a crosslinking agent, wherein said high performance engineering thermoplastic polyurethane is crosslinked in said matrix.