Patent ID: 6020427
Filing Date: 2000-02-01
Classification: C08K,C08L

Abstract:
A thermoplastic vulcanizate composition comprising a blend ofa) a thermoplastic selected from the group consisting of polyester, polycarbonate, polyester block copolymer or combinations thereof, and having a melting point of at least 170.degree. C.,b) from about 200 to about 375 parts by weight of carboxylated nitrile rubber per 100 parts by weight of said thermoplastic,c) from about 1 to about 12 parts by weight of an addition type curing agent per 100 parts by weight of said rubber, andd) from about 3 to about 30 parts by weight per 100 parts by weight of said thermoplastic of a processing aid selected from the group consisting of an an ethylene-acrylic acid copolymer, maleated polyethylene, maleated polypropylene, maleated ethylene-propylene rubber, a maleated block copolymer of styrene-butadiene-styrene, a maleated block copolymer of styrene-ethylene-butene-styrene, or combinations thereof,wherein said rubber has been at least partially cured by said curing agent.