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    Resin composition for automobile bumper
    2.
    发明公开
    Resin composition for automobile bumper 失效
    HarbusammensetzungfürAutomobilstossstangen。

    公开(公告)号：EP0509662A1

    公开(公告)日：1992-10-21

    申请号：EP92302737.9

    申请日：1992-03-27

    申请人： UBE INDUSTRIES, LTD. ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Fukui, Osamu ,  Nakano, Yoshifumi ,  Ueno, Kouhei ,  Hamada, Yukimasa ,  Nishio, Takeyoshi ,  Nomura, Takao ,  Kawamura, Nobuya

    IPC分类号： C08L53/00

    CPC分类号： C08L53/00 ,  B60R19/03 ,  C08L23/0815 ,  C08L23/16 ,  C08L53/02 ,  C08L2205/02 ,  C08L2666/04 ,  C08L2666/24

    摘要： A resin composition for an automobile bumper comprising components (A), (B), and (C) described below:

    (A) 45 to 74% by weight of a crystalline ethylene-propylene block copolymer having (a) a flexural modulus of 15,000 kg/cm² or more, (b) an ethylene content of 5 to 20% by weight, (c) an intrinsic viscosity (decalin, 135°C) of a portion soluble in p-xylene at room temperature of 3 or more, (d) a melt flow index (MI) of 21 to 70 g/10 min., and (e) a content of a portion insoluble in boiling n-heptane of 97% by weight or more;
    (B) 21 to 35% by weight of elastomer selected from the group consisting of components (I), (II) and (III) and having a weight ratio of (I) : [(I) + (II) + (III)] of from 0.5 to 1.0, (a) said component (1) being an amorphous ethylene-butene copolymer having a butene content of 10 to 25% by weight and a Mooney viscosity value, (ML₁₊₄, 100°C) of 5 to 20, (b) said component (II) being an amorphous ethylene-propylene copolymer having an ethylene content of 70 to 90% by weight and a Mooney viscosity value (ML₁₊₄, 100°C) of 5 to 40, and (c) said component (III) being a hydrogenated block copolymer consisting of 10 to 40% by weight of an aromatic vinyl polymer block X and 60 to 90% by weight of a conjugate diene polymer block Y, having a structure of said block components being X - Y or X - (Y - X) n , wherein n is 1 or 2, 90 mol% or more of said block Y being hydrogenated and the melt flow index (MI) of the hydrogenated block copolymer being 5 g/10 min. (230°C, 2.16 kg) or more, and;
    (C) 5 to 10% by weight of talc having a combustion loss of 7% by weight or less, containing no particles having a diameter of 10 µm or more and having an average particle diameter D₅₀ of 1.0 to 3.0 µm.

    摘要翻译： 一种汽车保险杠用树脂组合物，其特征在于，含有下述成分（A），（B）和（C）：（A）45〜74重量％的结晶乙烯 - 丙烯嵌段共聚物，（a）弯曲弹性模量为15000 kg / cm 2以上，（b）乙烯含量为5〜20重量％，（c）室温下可溶于对二甲苯的部分的特性粘度（萘烷，135℃），或 更多，（d）21〜70g / 10min的熔体流动指数（MI），和（e）不溶于沸腾正庚烷的部分的含量为97重量％以上; （B）21〜35重量％的选自组分（I），（II）和（III）并且重量比为（I）：[（I）+（II）+（III） ）]为0.5〜1.0，（a）所述成分（1）为无定形乙烯 - 丁烯共聚物，其丁烯含量为10〜25重量％，门尼粘度值（ML1 + 4,100℃）为 5〜20，（b）所述成分（II）为乙烯含量为70〜90重量％，门尼粘度值（ML1 + 4,100℃）为5〜40的无定形乙烯 - 丙烯共聚物，和 （c）所述组分（III）是由10至40重量％的芳族乙烯基聚合物嵌段X和60至90重量％的共轭二烯聚合物嵌段Y组成的氢化嵌段共聚物，其具有所述嵌段组分 是X-Y或X - （Y-X）n，其中n是1或2,90摩尔％以上的所述嵌段Y被氢化，氢化嵌段共聚物的熔体流动指数（MI）为5g / 10 分钟。 （230℃，2.16kg）以上; （C）5〜10重量％的燃烧损失为7重量％以下的滑石，不含直径为​​10μm以上且平均粒径D50为1.0〜3.0μm的粒子。

    Thermoplastic resin composition
    5.
    发明公开
    Thermoplastic resin composition 失效
    Thermoplastische Kunststoffzusammensetzung

    公开(公告)号：EP0838496A1

    公开(公告)日：1998-04-29

    申请号：EP97117819.9

    申请日：1997-10-15

    申请人： UBE INDUSTRIES, LTD.

    发明人： Okamoto, Naomi ,  Fukui, Osamu

    IPC分类号： C08L23/10 ,  C08L51/06 ,  C08L51/04

    CPC分类号： C08L53/00 ,  C08L51/06 ,  C08L2205/22 ,  C08L2666/24

    摘要： A thermoplastic resin composition having a light weight (density), excellent mechanical strength and modulus of elasticity and a satisfactory surface hardness comprises (1) 30 to 95% by weight of a matrix component (1) comprising a mixture of 0 to 95% by weight of at least one non-modified thermoplastic resin with 5 to 100% by weight of a chemical modification product of at least one non-modified thermoplastic resin, the non-modified thermoplastic resin being selected from crystalline propylene homopolymers and propylene-ethylene random and block copolymers and (2) 5 to 70% by weight of a dispersoid component comprising chemically modified 1,2-polybutadiene resin particles dispersed in the matrix component (1).

    摘要翻译： 具有轻质（密度），优异的机械强度和弹性模量以及令人满意的表面硬度的热塑性树脂组合物包含（1）30至95重量％的基质组分（1），其包含0至95％ 至少一种未改性热塑性树脂的重量，其中至少一种未改性热塑性树脂的化学改性产品为5至100重量％，所述非改性热塑性树脂选自结晶丙烯均聚物和丙烯 - 乙烯无规和 嵌段共聚物和（2）5-70重量％的包含分散在基质组分（1）中的化学改性的1,2-聚丁二烯树脂颗粒的分散质组分。