申请人:KANEKA CORPORATION
公开号:EP1714993A1
公开(公告)日:2006-10-25
The present invention provides an acrylic block copolymer composition improving melt flowability at molding and being excellent in heat resistance in addition to maintain weather resistance, chemical resistance, adhesivity, flexibility and abrasion resistance which are the characteristics of the acrylic block copolymer. It is attained by a thermoplastic elastomer composition comprising an acrylic block copolymer (A) which comprises a methacrylic polymer block (a) and an acrylic polymer block (b), wherein at least one of polymer blocks among the methacrylic polymer block (a) and the acrylic polymer block (b) has a functional group (X), and a compound (B) containing 1.1 or more of functional groups (Y) in one molecule.
本发明提供了一种丙烯酸嵌段共聚物组合物,该组合物可改善成型时的熔体流动性,并具有优异的耐热性,此外还能保持丙烯酸嵌段共聚物的耐候性、耐化学性、粘合性、柔韧性和耐磨性。这种热塑性弹性体组合物由丙烯酸嵌段共聚物(A)和化合物(B)组成,前者包括甲基丙烯酸聚合物嵌段(a)和丙烯酸聚合物嵌段(b),其中甲基丙烯酸聚合物嵌段(a)和丙烯酸聚合物嵌段(b)中至少有一个聚合物嵌段具有官能团(X),后者在一个分子中含有 1.1 个或更多官能团(Y)。