Thermoplastic elastomer composition

摘要

A thermoplastic elastomer composition which is useful for bumper, boot, sound absorbing gear, sports shoes etc. is provided by mixing the following (A)-(D). A: 30-58 parts by wt of saturated polyester resin, B: 42-70 parts by wt of an epoxy group-containing ethylene copolymer of a) 50-99% by wt of ethylene unit, b) 0.1-30% by wt of unsaturated carboxylic acid glycidyl ester unit or unsaturated glycidyl ether unit and c) 0-49% by wt of ethylenically unsaturated ester unit C: 0.01-20 parts by wt of specific polyfunctional compound containing two or more functional groups, and D: 1-30 parts by wt of block copolyether ester elastomer. The amounts of C and D are based on 100 parts of A and B.