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1. 发明授权

US07211626B2 Styrenic resin composition 失效
标题翻译：苯乙烯树脂组合物
公开(公告)号：US07211626B2
公开(公告)日：2007-05-01
申请号：US10543402
申请日：2004-01-23
申请人： Kazunori Kobashi , Hiroyuki Yamazaki , Tsuyoshi Morita
发明人： Kazunori Kobashi , Hiroyuki Yamazaki , Tsuyoshi Morita
IPC分类号： C07L53/02
CPC分类号： C08L53/02 , C08L25/14 , Y10T428/1334 , Y10T428/1397 , Y10T428/31917 , C08L2666/24
摘要： Surface impact strength in a molded article of an impact-resistant styrene resin composition, and balance between the surface impact strength and the rigidity is improved. Disclosed is a styrene resin composition comprising a styrene copolymer (A), and a block copolymer (B) comprising a polymer block (b1) of a styrene monomer and a polymer block (b2) of a conjugated diene monomer, wherein the styrene copolymer (A) is a copolymer of a styrene monomer (a), a butyl acrylate (b) and a methyl methacrylate (c), the block copolymer (B) forms a multi-layered structure in which a layer of the polymer block (b1) and a layer of the polymer block (b2) of the diene monomer are alternately laminated, and the styrene resin composition has 9 to 25%, on a weight basis, of structural units derived from the conjugated diene monomer.
摘要翻译：抗冲击性苯乙烯系树脂组合物的成形体中的表面冲击强度，表面冲击强度和刚性之间的平衡得到改善。公开了包含苯乙烯共聚物（A）和包含苯乙烯单体的聚合物嵌段（b1）和共轭二烯单体的聚合物嵌段（b2）的嵌段共聚物（B）的苯乙烯树脂组合物，其中苯乙烯共聚物 A）是苯乙烯单体（a），丙烯酸丁酯（b）和甲基丙烯酸甲酯（c）的共聚物，嵌段共聚物（B）形成多层结构，其中聚合物嵌段（b1）并且二烯单体的聚合物嵌段（b2）的层交替层叠，并且苯乙烯树脂组合物的重量为基于来自共轭二烯单体的结构单元的9〜25％。

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