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    Polypropylene resin composition
    1.
    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
    3.
    发明公开
    Thermoplastic resin composition 失效
    Thermoplastische Harzmischung

    公开(公告)号：EP0879853A1

    公开(公告)日：1998-11-25

    申请号：EP98303840.7

    申请日：1998-05-15

    申请人： Japan Polychem Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Nishio, Takeyoshi ,  Nagai, Takayuki ,  Iwai, Hisayuki ,  Zanka, Yukihito ,  Ishii, Izumi ,  Sato, Hiroki ,  Sobajima, Yoshihiro ,  Murayama, Mituhiro

    IPC分类号： C08L53/00

    CPC分类号： C08L53/00 ,  C08L2205/02 ,  C08L2205/06 ,  C08L2205/08 ,  C08L2666/04 ,  C08L2666/24

    摘要： There is provided a thermoplastic resin composition comprising the following components (A) to (E):

    component (A) : 50 to 74.7% by weight of a propyleneethylene block copolymer resin containing a propylene homopolymer moiety having a melt flow rate of 20 to 200 g/10 min. and an isotactic pentad fraction of at least 0.98, the block copolymer having a melt flow rate of 10 to 100 g/10 min. and a ratio of the weight average molecular weight to the number average molecular weight of 5 to 7,
    component (B): 5 to 10% by weight of an ethylene-octene random copolymer having a melting temperature of 40 to 60°C and a melt flow rate of 0.5 to 15 g/10 min.,
    component (C): 5 to 10% by weight of an ethylene-butene random copolymer not having a melting temperature of 35°C or above and having a melt flow rate of 0.5 to 15 g/10 min.,
    component (D): 0.3 to 5% by weight of an elastomer, the elastomer being either one comprising a block structure represented by the following formula [I] and/or the following formula [II] and having a melting temperature of 80 to 110°C, a melt flow rate of 0.5 to 20 g/10 min., a polyethylene crystal moiety content of 20 to 40% by weight, and a random elastomer moiety content of 60 to 80% by weight, or one comprising a block structure represented by the following formula [III], the following formula [IV] and/or the following formula [V] and having a melt flow rate of not more than 15 g/10 min. and a polystyrene moiety content of 10 to 40% by weight and a random elastomer moiety content of 60 to 90% by weight:

            polyethylene-(ethylene/butene random elastomer)-polyethylene     [I]



            polyethylene-(ethylene/butene random elastomer)     [II]



            polystyrene-(ethylene/butene random elastomer)-polystyrene     [III]



            polystyrene-(ethylene/propylene random elastomer)-polystyrene     [IV]



            polystyrene-(ethylene/propylene random elastomer)     [V];

    and
       component (E): 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.

    摘要翻译： 提供了包含以下组分（A）至（E）的热塑性树脂组合物：组分（A）：含有熔体流动速率为20至200的丙烯均聚物部分的丙烯亚乙基嵌段共聚物树脂的50至74.7重量％ g / 10分钟 和至少0.98的全同立构五单元组分数，该嵌段共聚物的熔体流动速率为10-100g / 10min。 重均分子量与数均分子量的比例为5〜7，成分（B）：5〜10重量％的熔融温度为40〜60℃的乙烯 - 辛烯无规共聚物和 熔体流动速率为0.5〜15g / 10min，成分（C）：5〜10重量％的熔融温度为35℃以上且熔体流动速率为0.5的乙烯 - 丁烯无规共聚物 组分（D）：0.3至5重量％的弹性体，弹性体为包含由下式ÄIü所表示的嵌段结构和/或下式ÄIIÜ的弹性体，其熔融温度 80〜110℃，熔体流动速率为0.5〜20g / 10分钟，聚乙烯结晶部分含量为20〜40重量％，无规弹性体部分含量为60〜80重量％，或1个 包括由以下式ÄIIIÜ表示的嵌段结构，下列通式ÄIVÜ和/或以下式ÄVÜ 并且熔体流动速率不超过15g / 10min。 聚苯乙烯部分含量为10〜40重量％，无规弹性体部分含量为60〜90重量％：聚乙烯 - （乙烯/丁烯无规弹性体） - 聚乙烯 - 聚乙烯 - （乙烯/丁烯无规弹性体）聚苯乙烯 - （乙烯 /丁烯无规弹性体） - 聚苯乙烯 - 聚苯乙烯 - （乙烯/丙烯无规弹性体） - 聚苯乙烯 - 聚苯乙烯 - （乙烯/丙烯无规弹性体）和组分（E）：15至25重量％的平均粒径为 5μm，比表面积至少为3.5m 2 / g。

    Resin composition having excellent paint coatability
    5.
    发明公开
    Resin composition having excellent paint coatability 失效
    Harstusammensetzung mit exzellenter Farbbeschichtbarkeit

    公开(公告)号：EP0714948A1

    公开(公告)日：1996-06-05

    申请号：EP96200197.0

    申请日：1993-04-01

    申请人： Tonen Chemical Corporation ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

    发明人： Saito, Yoshiharu ,  Sakaizawa, Masao ,  Iwanami, Kunio ,  Kitano, Kitsusho ,  Tasaka, Michihisa ,  Kawazu, Kenji ,  Miyazaki, Shizuo ,  Nomura, Takao ,  Nishio, Takeyoshi ,  Iwai, Hisayuki

    IPC分类号： C08L53/00 ,  C08K3/34

    CPC分类号： C08L53/00 ,  C08K3/013 ,  C08K3/34 ,  C08L23/06 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/16 ,  C08L2666/24 ,  C08L2666/04

    摘要： A resin composition having excellent paint coatability comprising:

    (A) 50-80 weight % of a multi-stage polymerized propylene-ethylene block copolymer consisting essentially of (i) a propylene homopolymer portion, (ii) a propylene-ethylene random copolymer portion, and (iii) an ethylene homopolymer portion, said propylene-ethylene block copolymer being characterized by the requirement that:

    (a) said propylene-ethylene random copolymer portion (ii) has a number-average molecular weight of 20 X 40 4 or more and a weight-average molecular weight of 60 X 10 4 or more;
    (b) a content of ethylene is 60 weight % or more and a content of said ethylene homopolymer portion (iii) is 40 weight % or more, both based on the total amount (100 weight %) of said propylene-ethylene random copolymer portion (ii) and said ethylene homopolymer portion (iii); or
    (c) an intrinsic viscosity of said propylene homopolymer portion (i) is 0.9-1.2 dl/g, an intrinsic viscosity of said propylene-ethylene random copolymer portion (ii) is 4.0 dl/g or more, and an ethylene content of said propylene-ethylene random copolymer portion (ii) is 30-70 weight %;

    (B) 20-40 weight % of an ethylene-α-olefin copolymer elastomer; and
    (C) up to 20 weight % of an inorganic filler.

    摘要翻译： 具有优异的涂漆性的树脂组合物，其包含：（A）50-80重量％的多阶段聚合的丙烯 - 乙烯嵌段共聚物，其基本上由（i）丙烯均聚物部分，（ii）丙烯 - 乙烯无规共聚物部分， 所述丙烯 - 乙烯嵌段共聚物的特征在于：（a）所述丙烯 - 乙烯无规共聚物部分（ii）的数均分子量为20×40 4或 更多且重均分子量为60×10 4或更大; （b）基于所述丙烯 - 乙烯无规共聚物部分的总量（100重量％），乙烯的含量为60重量％以上，所述乙烯均聚物部分（iii）的含量为40重量％以上 （ii）和所述乙烯均聚物部分（iii）; 或（c）所述丙烯均聚物部分（i）的特性粘度为0.9-1.2dl / g，所述丙烯 - 乙烯无规共聚物部分（ii）的特性粘度为4.0dl / g以上，乙烯含量 所述丙烯 - 乙烯无规共聚物部分（ii）为30-70重量％ （B）20-40重量％的乙烯-α-烯烃共聚物弹性体; 和（C）至多20重量％的无机填料。 乐