Thermoplastic composition of polyolefin and high ethylene content ethylene/alkyl acrylate elastomer

摘要

A melt processible thermoplastic composition comprising a blend of: (A) 15-75 parts by weight of a crystalline polyolefin resin comprising polymerized monomer units of ethylene or propylene or mixtures thereof, and (B) 25-80 parts by weight of a crosslinked ethylene/alkyl acrylate elastomer made from dynamically crosslinking an ethylene/alkyl acrylate/monoalkyl ester of 1,4-butenedioic acid copolymer containing about 60-90 weight percent ethylene and wherein the alkyl group of the alkyl acrylate contains 1-6 carbon atoms, the dynamically crosslinked elastomer being dispersed throughout the crystalline polyolefin resin.