申请人:Shimizu Daisuke
公开号:US20110003928A1
公开(公告)日:2011-01-06
The present invention provides a thermoplastic elastomer composition obtained by dynamically crosslinking, under a melting condition, 100 parts by mass of a block copolymer (I), 1 to 1,000 parts by mass of a polar resin (II), 1 to 500 parts by mass of a modified polymer (III), and 0.01 to 50 parts by mass of a crosslinking agent (IV), wherein the block copolymer (I) comprises at least one polymer block (A) comprising as a main component an alkylene unit, and/or at least one copolymer block (B) comprising as main components an alkylene unit (b-
1
) and a vinyl aromatic monomer unit (b-
2
), and comprises at least one unsaturated block (C) comprising as a main component a conjugated diene monomer unit having 5 or more carbon atoms at an end.
本发明提供了一种热塑性弹性体组合物,其通过在熔化条件下动态交联100份质量的嵌段共聚物(I)、1至1,000份质量的极性树脂(II)、1至500份质量的改性聚合物(III)和0.01至50份质量的交联剂(IV)而得到。其中,嵌段共聚物(I)包括至少一个聚合物块(A),其主要成分为烷基单元,和/或至少一个共聚物块(B),其主要成分为烷基单元(b-1)和乙烯基芳香单体单元(b-2),并且包括至少一个不饱和块(C),其主要成分为具有5个或更多碳原子的共轭二烯单体单元。