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    Process for Preparing a Catalyst Component for Propylene Polymerization
    2.
    发明申请
    Process for Preparing a Catalyst Component for Propylene Polymerization 有权
    制备丙烯聚合催化剂组分的方法

    公开(公告)号：US20090306315A1

    公开(公告)日：2009-12-10

    申请号：US12227663

    申请日：2007-05-23

    申请人： Yves Johann Elizabeth Ramjoie ,  Mark Vlaar ,  Nicolaas Hendrika Friederichs ,  Sergei Andreevich Sergeev ,  Vladimir Aleksandrovich Zakharov ,  Gennadii Dimitrievich Bukatov ,  Mansour Taftaf ,  Atieh Aburaqabah

    发明人： Yves Johann Elizabeth Ramjoie ,  Mark Vlaar ,  Nicolaas Hendrika Friederichs ,  Sergei Andreevich Sergeev ,  Vladimir Aleksandrovich Zakharov ,  Gennadii Dimitrievich Bukatov ,  Mansour Taftaf ,  Atieh Aburaqabah

    IPC分类号： C08F4/50

    CPC分类号： C08F10/00 ,  C08F110/06 ,  C08F4/6545 ,  C08F2500/18 ,  C08F2500/24 ,  C08F2500/12 ,  C08F4/6548

    摘要： The invention relates to a process for preparing a polymerization catalyst component wherein a solid compound with formula Mg(OR1)xCl2-x wherein x is larger than 0 and smaller than 2, and each R1, independently, represents an alkyl group, said compound being obtained by reacting a Grignard compound with an alkoxy- or aryloxy-containing silane compound, is contacted with at least one activating compound selected from the group formed by internal electron donors and compounds of formula M(OR2)v-w(R3)w, wherein M can be Ti, Zr, Hf, Al or Si, each R2 and R3, independently, represent an alkyl, alkenyl or aryl group, v is the valency of M and w is smaller than v, in the presence of an inert dispersant to give an intermediate reaction product, and wherein the intermediate reaction product is contacted with a halogen-containing Ti-compound. A catalyst system comprising said component shows improved performance in olefin polymerization.The invention also relates to a polymerization catalyst system comprising the catalyst component and to a process of making a polyolefin by contacting at least one olefin with a polymerization catalyst system comprising the catalyst component.

    摘要翻译： 本发明涉及一种制备聚合催化剂组分的方法，其中具有式Mg（OR1）xCl2-x的固体化合物，其中x大于0且小于2，并且每个R 1独立地表示烷基，所述化合物为 通过使格利雅化合物与含烷氧基或芳氧基的硅烷化合物反应而获得的至少一种活化化合物与选自由内部电子给体和式M（OR 2）vw（R 3）w形成的基团中的至少一种活化化合物接触，其中M 可以是Ti，Zr，Hf，Al或Si，每个R 2和R 3独立地表示烷基，烯基或芳基，v是M的化合价，w小于v，在惰性分散剂存在下，得到 中间反应产物，其中中间反应产物与含卤素的Ti化合物接触。 包含所述组分的催化剂体系在烯烃聚合中显示出改进的性能。 本发明还涉及包含催化剂组分的聚合催化剂体系和通过使至少一种烯烃与包含催化剂组分的聚合催化剂体系接触来制备聚烯烃的方法。