发明申请
- 专利标题： Block copolymer ruuber, resin modifier, and resin composition
- 专利标题（中）： 嵌段共聚物，树脂改性剂和树脂组合物
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申请号： US10204864申请日： 2002-08-26
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公开(公告)号： US20030023019A1公开(公告)日： 2003-01-30
- 发明人: Katsuhito Kondou , Hiroaki Matsuda , Tetsuya Toyoshima
- 优先权： JP2000-49858 20000225
- 主分类号： C08F136/00
- IPC分类号： C08F136/00
摘要：
An aromatic vinyl-conjugated diene block copolymer rubber comprising 50 to 75% by weight of conjugated diene monomer units and 25 to 50% by weight of aromatic vinyl monomer units, wherein the content of vinyl bond in the conjugated diene monomer units is at least 50% by weight, the ratio of blocked aromatic vinyl in the aromatic vinyl monomer units is at least 70% and the number average molecular weight of the copolymer rubber is in the range of 280,000 to 1,000,000. An aromatic vinyl resin having incorporated therein the aromatic vinyl-conjugated dione block copolymer rubber gives a shaped article having good impact resistance and luster, and characterized in that the luster is thermally stable and the luster varies only to a minimized extent within the shaped article.
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