Patent ID: 6448343
Filing Date: 2002-09-10
Classification: C08F,C08K

Abstract:
A thermoplastic vulcanizate possessing a gel content of between 10 to 50 wt % and an elongation at break of greater than 400%, comprising:(a) a dispersed rubber phase comprising the crosslinked reaction product of (i) a first polymer selected from the group consisting of ethylene propylene copolymer, ethylene propylene diene terpolymer, butyl rubber, natural rubber, chlorinated polyethylene, silicone rubber, isoprene rubber, butadiene rubber, styrene-butadiene rubber, ethylene-vinyl acetate, ethylene butylacrylate, ethylene methacrylate, ethylene ethylacrylate, ethylene-&agr;-olefin copolymers, linear low density polyethylene, ultra low density polyethylene, high density polyethylene and nitrile rubber; (ii) carboxylic acid anhydride; and (iii) an aminosilane; and (b) a continuous thermoplastic phase comprising a second polymer selected from the group consisting of polypropylene, polyethylene, high density polyethylene, polystyrene, acrylonitrile butadiene styrene, styrene acrylonitrile, polymethylmethacrylate, thermoplastic polyesters, polyethylene terephthalate, polybutylene terephthalate and polycarbonate.