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    Polypropylene resin composition
    9.
    发明公开
    Polypropylene resin composition 审中-公开
    聚丙烯树脂组合物

    公开(公告)号：EP0926195A1

    公开(公告)日：1999-06-30

    申请号：EP98124590.5

    申请日：1998-12-23

    申请人： Japan Polychem Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Iwanami, Kunio, c/o Japan Polychem Corp. ,  Kobayashi, Akira, c/o Japan Polychem Corp. ,  Murayama, Mitsuhiro, c/o Japan Polychem Corp. ,  Fujita, Yuji, c/o Japan Polychem Corp. ,  Nagai, Takayuki ,  Nomura, Takao ,  Matsuda, Masatoshi ,  Kito, Osamu ,  Iwai, Hisayuki

    IPC分类号： C08L53/02 ,  C08L53/00 ,  C08K3/34

    CPC分类号： C08L53/00 ,  C08L53/02 ,  C08L53/025 ,  C08L2666/24

    摘要： This invention provides polypropylene resin compositions exhibiting a strongly improved balance of physical properties in comparison to related polypropylene materials. The materials can be used in both interior and exterior parts of automobiles, have excellent thin-wall moldability and can effectively reduce generation of flow marks. Particularly, it provides a polypropylene resin composition which comprises specified amounts of (A) a specific ethylene-propylene block copolymer, (B) a specific thermoplastic elastomer and (C) talc, wherein it has specified values of physical properties measured by ASTM and has a degree of b-axis orientation of 720 or more which is calculated from the ratio of differential peak intensities measured by wide-angle X-ray diffraction of the central area of an ASTM No. 1 dumbbell prepared by injection molding.

    摘要翻译： 与有关的聚丙烯材料相比，本发明提供了聚丙烯树脂组合物，其物理性能的平衡显着改善。 该材料可用于汽车内外部件，具有优异的薄壁成型性，可有效减少流痕的产生。 特别是提供含有特定量的（A）特定的乙烯 - 丙烯嵌段共聚物，（B）特定的热塑性弹性体和（C）滑石的聚丙烯树脂组合物，其特征在于， 根据通过注射成型制备的ASTM 1号哑铃的中心区域的广角X射线衍射测量的差分峰值强度的比率计算720或更高的b轴取向度。

    Thermoplastic resin composition improved in terms of prevention of mold contamination
    10.
    发明公开
    Thermoplastic resin composition improved in terms of prevention of mold contamination 失效
    热塑性乳酸杆菌

    公开(公告)号：EP0791630A1

    公开(公告)日：1997-08-27

    申请号：EP97301120.8

    申请日：1997-02-21

    申请人： Japan Polychem Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Nagai, Takayuki ,  Niimi, Toshio ,  Zanka, Yukihito, c/o Japan Polychem Corporation ,  Tsutsumi, Iko, c/o Japan Polychem Corporation ,  Sato, Hiroki, c/o Japan Polychem Corporation

    IPC分类号： C08L53/00 ,  C08K3/34 ,  C08K5/3432 ,  C08K5/50 ,  C08K5/098

    CPC分类号： C08K5/005 ,  C08L53/00 ,  C08L2666/04

    摘要： A thermoplastic resin composition improved in terms of prevention of mold contamination, comprising the following components (A) to (G):

    component (A): 55 to 75% by weight of a propylene-ethylene block copolymer including a propylene homopolymer moiety having a melt flow rate of 15 to 50 g/10 min. and an isotactic pentad fraction of at least 0.97, said block copolymer having a melt flow rate of 10 to 30 g/10 min. and an ethylene content of 2 to 6% by weight,
    component (B): 0 to 10% by weight of an ethylene-propylene copolymer rubber having a melting temperature of 30 to 60°C and a melt flow rate of 0.2 to 2 g/10 min.,
    component (C): 5 to 15% by weight of an ethylene-α-olefin copolymer rubber having a melting temperature of 60 to 100°C and a melt flow rate of 0.3 to 2 g/10 min.,
    component (D): 15 to 25% by weight of a talc having an average particle diameter of up to 5 µm and a specific surface area of at least 3.5 m 2 /g,
    the total amount of components (A) to (D) being 100% by weight,
    component (E): 0.05 to 2 parts by weight of a hindered amine having a structure represented by the following formula (I):

    component (F): 0.01 to 1 part by weight of a triaryl phosphite, and
    component (G): 0.05 to 4 parts by weight of a metal salt represented by the following general formula (VIII):

            (RCOO) 2 X     (VIII)

    wherein R is a monovalent hydrocarbon group having a molecular weight of 290 to 500, and X is zinc, magnesium or calcium,
    the respective amounts of components (E) to (G) being based on 100 parts by weight of the sum of components (A) to (D).

    摘要翻译： 含有以下组分（A）至（G）的组分（A）：55至75重量％的包含丙烯均聚物部分的丙烯 - 乙烯嵌段共聚物，其具有 熔体流动速率为15〜50g / 10min。 并且全同立构五单元组分数至少为0.97，所述嵌段共聚物的熔体流动速率为10至30g / 10min。 乙烯含量为2〜6重量％，成分（B）：0〜10重量％的熔融温度为30〜60℃，熔体流动速率为0.2〜2g的乙烯 - 丙烯共聚物橡胶 / 10分钟，成分（C）：5〜15重量％的熔融温度为60〜100℃，熔体流动速率为0.3〜2g / 10分钟的乙烯-α-烯烃共聚物橡胶， 成分（D）：15〜25重量％的平均粒径为5μm以下，比表面积为3.5m 2 / g以上的滑石，成分（A）〜 （D）为100重量％，成分（E）：0.05〜2重量份具有下述式（I）所示结构的受阻胺：成分（F）：0.01〜1重量份 的亚磷酸三芳酯和组分（G）：0.05至4重量份由以下通式（VIII）表示的金属盐：（RCOO）2 X其中R是分子量为290至500的一价烃基 ， X为锌，镁或钙，组分（E）至（G）的相应量基于组分（A）至（D）的总和的100重量份。