Process for producing modified propylene polymer and modified propylene
polymer composition
    3.
    发明授权
    Process for producing modified propylene polymer and modified propylene polymer composition 失效
    制备改性丙烯聚合物和改性丙烯聚合物组合物的方法

    公开(公告)号:US5589541A

    公开(公告)日:1996-12-31

    申请号:US413218

    申请日:1995-03-28

    IPC分类号: C08F255/02 C08L51/06

    CPC分类号: C08F255/02 C08L51/06

    摘要: A process for producing a modified propylene polymer comprising the steps of premixing a propylene polymer with a vinyl monomer and polymerizing the vinyl monomer by kneading the premix at a temperature of a melting point thereof or higher is described, wherein the propylene polymer is a particulate propylene polymer having a specific surface area of 0.1 m.sup.2 /g or more. A modified propylene polymer composition is also described, obtained by mixing (a) a particulate propylene polymer having a specific surface area of 0.1 m.sup.2 /g or more, (b) 5% by weight or more of a vinyl monomer mainly comprising an aromatic vinyl monomer based on the total weight of the vinyl monomer and the propylene polymer, and (c) a radical polymerization initiator, substantially impregnating the vinyl monomer and the radical polymerization initiator into the propylene polymer, and then polymerizing the vinyl monomer by melt-kneading.

    摘要翻译: 描述了一种制备改性丙烯聚合物的方法,其包括以下步骤:丙烯聚合物与乙烯基单体预混合并通过在其熔点或更高的温度下捏合预混物使乙烯基单体聚合,其中丙烯聚合物是颗粒丙烯 比表面积为0.1m 2 / g以上的聚合物。 还描述了一种改性的丙烯聚合物组合物,其通过将(a)比表面积为0.1m 2 / g以上的颗粒状丙烯聚合物,(b)5重量%以上的主要包含芳族乙烯基的乙烯基单体 基于乙烯基单体和丙烯聚合物的总重量的单体,和(c)自由基聚合引发剂,基本上将乙烯基单体和自由基聚合引发剂浸渍到丙烯聚合物中,然后通过熔融捏合聚合乙烯基单体。