THERMOPLASTIC ELASTOMER COMPOSITION

摘要

Disclosed is a thermoplastic elastomer composition which is excellent in storage stability and melt fluidity during molding. A molded body obtained from this thermoplastic elastomer composition is excellent in heat resistance, oil resistance, chemical resistance, adhesiveness and flexibility. Specifically disclosed is a thermoplastic elastomer composition containing an acrylic block copolymer (A) having a number average molecular weight determined by gel permeation chromatography of 30,000-200,000, a compound (B) having 1.1 or more reactive functional groups (d) in a molecule, and a thermal latent catalyst (C). The acrylic block copolymer (A) is composed of 10-60% by weight of a methacrylic polymer block (a) mainly composed of a methacrylic monomer and having a glass transition temperature of 25-130°C and 90-40% by weight of an acrylic polymer block (b), and contains at least one functional group (c) selected from the group consisting of a hydroxyl group, an acid anhydride group and a carboxyl group in at least one of the polymer block (a) and the polymer block (b).