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1. 发明授权

US5543454A Reinforced polypropylene resin composition 失效
标题翻译：增强聚丙烯树脂组合物
公开(公告)号：US5543454A
公开(公告)日：1996-08-06
申请号：US285627
申请日：1994-08-04
申请人： Hikoichi Kamakura , Kiyoshi Tsutsui , Tomohiko Akagawa , Ikunori Sakai , Shigeji Ichikawa , Katsunori Arai
发明人： Hikoichi Kamakura , Kiyoshi Tsutsui , Tomohiko Akagawa , Ikunori Sakai , Shigeji Ichikawa , Katsunori Arai
IPC分类号： C08K3/34 , C08L23/16 , C08L33/00 , C08L53/00 , C08L53/02
CPC分类号： C08L53/00 , C08K3/34 , C08L23/16 , C08L53/02
摘要： A reinforced polypropylene resin composition contains the following components (A), (B) and (C) in amounts of 67 to 82% by weight of, 6 to 12% by weight and 12 to 21% by weight, respectively:Component (A): crystalline ethylene-propylene block copolymer having an ethylene content of 2 to 4% by weight, a molecular distribution of polypropylene component (Q=M.sub.w /M.sub.n) of at least 7, isotacticity of polypropylene component of at least 98%, an intrinsic viscosity (decalin, 135.degree. C.) of room temperature p-xylene soluble content of at least 6 dl/g, a melt flow rate (MFR) of 3 to 15 g/10 minutes, and the product of flexural modulus at room temperature and Izod impact strength at room temperature of at least 120000.Component (B): at least one elastomer selected from the group of consisting of (a) hydrogenated block copolymer rubbers each comprising block (I) composed of an aromatic vinyl compound copolymer and block (II) composed of a conjugated diene copolymer, and having a bonding structure of I-II or I-(II-I).sub.n (wherein n=1 or 2), wherein block (I) is contained in an amount of 10 to 40% by weight of the copolymer and is hydrogenated in an amount of 10 mol % or less, and block (II) is contained in an amount of 60 to 90% by weight of the copolymer and is hydrogenated in an amount of at least 90 mol %; and (b) ethylene-.alpha.-olefin copolymer rubbers each containing 30 to 95% by weight of ethylene.Component (C): talc having an average particle size of 3 to 5 .mu.m, which is measured by a laser diffraction method, a BET specific surface area of 5 to 13 m.sup.2 /g, and a top cut size of less than 20 .mu.m.
摘要翻译：增强聚丙烯树脂组合物分别含有67〜82重量％，6〜12重量％和12〜21重量％的成分（A），（B）和（C）成分（A ）：乙烯含量为2〜4重量％，聚丙烯组分（Q = Mw / Mn）分子量至少为7，聚丙烯组分的全同立构度至少为98％的结晶乙烯 - 丙烯嵌段共聚物，内在的室温对二甲苯可溶物含量至少为6dl / g，熔体流动速率（MFR）为3〜15g / 10分钟的粘度（萘烷，135℃），室温下的弯曲弹性模量组分（B）：选自（a）氢化嵌段共聚物橡胶中的至少一种弹性体，各自包含由芳族乙烯基化合物共聚物和嵌段（I）组成的嵌段（I）（II），具有结合结构o f I-II或I-（II-I）n（其中n = 1或2），其中嵌段（I）的含量为共聚物重量的10〜40％，氢化量为10 mol％以下，嵌段（II）的含量为共聚物的60〜90重量％，氢化至少为90摩尔％以上。和（b）乙烯-α-烯烃共聚物橡胶，各自含有30至95重量％的乙烯。成分（C）：通过激光衍射法测定的平均粒径为3〜5μm的滑石，BET比表面积为5〜13m 2 / g，顶切尺寸小于20μm m。

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