Process for preparing a catalyst support for polymerization of &agr;-olefins, and support thus obtained
    1.
    发明授权
    Process for preparing a catalyst support for polymerization of &agr;-olefins, and support thus obtained 失效
    制备α-烯烃聚合催化剂载体的方法和由此获得的载体

    公开(公告)号:US06803428B2

    公开(公告)日:2004-10-12

    申请号:US10278817

    申请日:2002-10-24

    IPC分类号: C08F442

    摘要: A process is provided for preparing a catalyst support for polymerizing &agr;-olefins comprising the steps of: (i) reacting, in the presence of a first electron donor, a chlorine-containing organic compound and a prior mixture of an alkylmagnesien and an aluminoxane and/or aluminosiloxane and/or alkylaluminum and, optionally, a second electron donor; and (ii) activating a product from step (i) in suspension in an inert liquid by means of an activation electron donor, together with the support thus obtained, a catalyst for polymerizing &agr;-olefins, comprising this catalyst support and a group IV transition metal halide, and a process for polymerizing &agr;-olefins, particularly propylene, comprising contacting the &agr;-olefin with the catalyst.

    摘要翻译: 提供了一种制备用于聚合α-烯烃的催化剂载体的方法,包括以下步骤:(i)在第一电子给体存在下使含氯有机化合物和烷基胺和铝氧烷的先前混合物和 /或铝硅氧烷和/或烷基铝和任选的第二电子给体; 和(ii)通过活化电子给体将惰性液体中的步骤(i)中的产物与由此获得的载体一起活化用于聚合α-烯烃的催化剂,其包含该催化剂载体和IV族转化 金属卤化物,以及聚合α-烯烃,特别是丙烯的方法,包括使α-烯烃与催化剂接触。