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1. 发明授权

US06187862B1 Weatherable resinous composition having improved opacity and impact strength 失效
标题翻译：耐候性树脂组合物具有改善的不透明度和冲击强度
公开(公告)号：US06187862B1
公开(公告)日：2001-02-13
申请号：US09071089
申请日：1998-05-01
申请人： Moh Ching Oliver Chang , Richard M. Auclair , Robert A. Sanocki
发明人： Moh Ching Oliver Chang , Richard M. Auclair , Robert A. Sanocki
IPC分类号： C08L4700
CPC分类号： C08L25/12 , C08F285/00 , C08L51/003 , C08L51/04 , C08F212/00 , C08L2666/24 , C08L2666/04
摘要： A thermoplastic molding composition comprising a grafted rubber and a copolymeric matrix is disclosed. The composition is characterized in that its grafted rubber includes a substrate, a first grafted phase and a subsequent grafted phase which are sequentially grafted to said substrate. The substrate which contains a crosslinked elastomer is grafted with a first grafted phase and with a subsequent grafted phase, both phases containing copolymers of at least one vinylaromatic monomer and at least one member selected from the group consisting of (meth)acrylonitrile and alkyl (meth)acrylate. The relative ratios of the monomers making up the copolymerized phases differ one from the other. The grafted rubber is present in particulate form having a weight average particle size of about 0.1 to 1.0 microns. The composition features improved impact strength and reduced opacity.
摘要翻译：公开了一种包含接枝橡胶和共聚物基质的热塑性模塑组合物。该组合物的特征在于其接枝橡胶包括依次接枝到所述基材上的基材，第一接枝相和随后的接枝相。含有交联弹性体的基材用第一接枝相和随后的接枝相接枝，两相含有至少一种乙烯基芳族单体和至少一种选自（甲基）丙烯腈和（甲基）丙烯酸烷基酯的物质的共聚物）丙烯酸酯。构成共聚相的单体的相对比例彼此不同。接枝橡胶以重量平均粒度为约0.1至1.0微米的颗粒形式存在。该组合物具有改善的冲击强度和降低的不透明度。

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