Thermoplastic elastomer composition

摘要

The present invention relates to a thermoplastic elastomer composition comprising: 100 parts by weight of at least one addition block copolymer (I) selected from among block copolymers and hydrogenated products thereof, the block copolymers each having at least one polymer block (A) comprising aromatic vinyl compound units, and at least one polymer block (B) comprising conjugated diene compound units, and the addition block copolymers being crosslinked at least in the polymer block (A);
10 to 300 parts by weight of a polyolefin (II); and
0 to 300 parts by weight of a rubber softener (III),
wherein the addition block copolymer (I) has a functional group (b) in the polymer block (A) in an amount of 1.5 groups or more per molecule of the addition block copolymer (I), and wherein the addition block copolymer (I) is crosslinked at least in the polymer block (A) through the functional group (b); and a process for producing said thermoplastic elastomer composition.