Catalyst systems of the ziegler-natta type and a process for preparing them
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    发明授权
    Catalyst systems of the ziegler-natta type and a process for preparing them 失效
    齐格勒 - 纳塔型催化剂系统及其制备方法

    公开(公告)号:US06730753B2

    公开(公告)日:2004-05-04

    申请号:US09940368

    申请日:2001-08-28

    IPC分类号: C08F464

    摘要: Catalyst systems of the Ziegler-Natta type, which are suitable for the polymerization of olefins are prepared by: A) bringing an inorganic metal oxide on which a magnesium compound has been deposited into contact with a tetravalent titanium compound, B) if desired, bringing the intermediate obtained in this way into contact with an electron donor compound and C) bringing the intermediate obtained in step A) or B) into contact with a polysiloxane.

    摘要翻译: 适用于烯烃聚合的齐格勒 - 纳塔型催化剂体系是通过以下步骤制备的:A)使其上沉积有镁化合物的无机金属氧化物与四价钛化合物接触,B)如果需要,将 以这种方式获得的中间体与电子给体化合物接触,和C)将步骤A)中得到的中间体或B)与聚硅氧烷接触。