Impact modifier for a polymer composition and method for preparing the same
    4.
    发明授权
    Impact modifier for a polymer composition and method for preparing the same 有权
    聚合物组合物用抗冲改性剂及其制备方法

    公开(公告)号:US07541401B2

    公开(公告)日:2009-06-02

    申请号:US11323646

    申请日:2005-12-28

    IPC分类号: C08K5/5419 C08G77/442

    CPC分类号: C08F285/00

    摘要: Disclosed herein is an impact modifier for a polymer composition and a method of preparing the same. The impact modifier includes a core comprising a polyorganosiloxane, an acrylate polymer and a styrenic polymer; and a shell generally surrounding the core, the shell comprising a polymer attached to the core. The method includes providing a silicone rubber particle; adding a polymerizable styrenic compound into the silicone rubber particle; polymerizing the polymerizable styrenic compound within the particle to provide a styrenic polymer; adding a polymerizable acrylic compound into the silicone rubber particle; polymerizing the polymerizable acrylic compound within the silicone rubber particle to provide an acrylate polymer; and grafting a polymerizable compound onto the silicone rubber particle to provide a shell substantially surrounding the silicone rubber particle comprising the styrenic polymer and the acrylate polymer.

    摘要翻译: 本文公开了一种聚合物组合物的抗冲改性剂及其制备方法。 抗冲击改性剂包括包含聚有机硅氧烷,丙烯酸酯聚合物和苯乙烯聚合物的核心; 以及通常围绕所述芯的外壳,所述壳包含附着到所述芯的聚合物。 该方法包括提供硅橡胶颗粒; 将可聚合苯乙烯化合物加入到硅橡胶颗粒中; 在颗粒内聚合可聚合的苯乙烯化合物以提供苯乙烯聚合物; 将可聚合的丙烯酸化合物加入到硅橡胶颗粒中; 在硅橡胶颗粒内聚合可聚合丙烯酸化合物以提供丙烯酸酯聚合物; 并将可聚合化合物接枝到硅橡胶颗粒上以提供基本上围绕包含苯乙烯聚合物和丙烯酸酯聚合物的硅橡胶颗粒的外壳。