Patent ID: 8178625
Filing Date: 2012-05-15
Classification: C08F,C08L

Abstract:
1. A thermoplastic vulcanizate composition comprising a dynamically-cured rubber; and from about 20 to about 300 parts by weight of a thermoplastic resin per 100 parts by weight dynamically-cured rubber; wherein the dynamically-cured rubber comprises a multimodal polymer composition cured with a curing agent, the multimodal polymer composition comprising: a) 45 to 75 wt % of a first polymer fraction comprising ethylene, a C b) 25 to 55 wt % of a second polymer fraction comprising ethylene, a C c) from about 10 phr to about 50 phr of an extender oil, which is a liquid at 25° C., wherein the multimodal polymer composition has a number average molecular weight of greater than or equal to about 60,000, and less than or equal to about 350,000 g/mol, and a Mooney viscosity of 121 to 141 ML(1+4@125° C.).