Thermoplastic elastomer composition

摘要

There is provided a thermoplastic elastomer composition having excellent surface processabilities such as adhesion, paintability and printability together with impact resistance. This composition comprises (A) 20-80% by weight of a polypropylene resin, (B) 5-38% by weight of an ethylene copolymer having 82-98.7 mol % of an ethylene unit, 1-15 mol % of an ester unit selected from alkyl acrylate and methacrylate having an alkyl group of 1-8 carbon atoms and 0.3-3 mol % of an unsaturated dicarboxylic acid anhydride unit and (C) 5-70% by weight of ethylene-propylene and/or ethylene-propylene-non-conjugated diene copolymer rubber which contain 50-85 mol % of an ethylene unit and have a Mooney viscosity at 100 DEG C. of 20-100 and an iodine value of 20 or less.