Polypropylene resin composition, method for its production, and injection molded article
    1.
    发明授权
    Polypropylene resin composition, method for its production, and injection molded article 失效
    聚丙烯树脂组合物,其生产方法和注塑制品

    公开(公告)号:US06911497B2

    公开(公告)日:2005-06-28

    申请号:US10806154

    申请日:2004-03-23

    摘要: A polypropylene resin composition having a melt flow rate of 70 to 120 g/10 min (at 230° C., 2.16 kgf-load), a flexural modulus of 1300 to 4000 MPa and an IZOD impact strength of 30 to 100 kJ/m2, wherein the composition is obtained by adding a small amount of an organic peroxide to a mixture comprising 60 to 80% by weight of a specific propylene-ethylene block copolymer made up of a propylene homopolymer portion and a propylene-ethylene random copolymer portion, a rubber which is a copolymer of ethylene and at least one α-olefin having a melt flow rate of 2 to 10 g/10 min (at 190° C., 2.16 kgf-load), and inorganic filler (C), and kneading the combined ingredients at a temperature of 170 to 280° C.

    摘要翻译: 熔体流动速率为70〜120g / 10分钟(230℃,2.16kgf负荷),弯曲弹性模量为1300〜4000MPa,IZOD冲击强度为30〜100kJ / m的聚丙烯树脂组合物 其中所述组合物通过将少量有机过氧化物加入到由丙烯均聚物部分和丙烯均聚物部分组成的特定丙烯 - 乙烯嵌段共聚物的60至80重量%的混合物中而获得, 丙烯 - 乙烯无规共聚物部分,橡胶,其是乙烯和至少一种熔体流动速率为2至10g / 10分钟(在190℃,2.16kgf负载)的α-烯烃的共聚物,和无机 填充剂(C),并在170〜280℃的温度下捏合组合成分。