利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.01 秒)

    A polyolefin catalyst for polymerization of propylene and a method of making and using thereof
    4.
    发明公开
    A polyolefin catalyst for polymerization of propylene and a method of making and using thereof 失效
    用于丙烯聚合的聚烯烃催化剂及其制备方法和用途

    公开(公告)号：EP0849287A1

    公开(公告)日：1998-06-24

    申请号：EP97122171.8

    申请日：1997-12-16

    申请人： FINA TECHNOLOGY, INC.

    发明人： Shamshoum, Edwar S. ,  Bauch, Christopher G. ,  Rauscher, David J.

    IPC分类号： C08F4/654 ,  C08F10/00 ,  C08F4/646

    CPC分类号： C08F10/00 ,  C08F110/06 ,  C08F4/6548 ,  C08F4/6465 ,  C08F2500/04 ,  C08F2500/12 ,  C08F2500/18

    摘要： A method of forming a polyolefin catalyst component which includes chlorinating magnesium ethoxide, and then treating the solid first with an electron donor, particularly diethyl phthalate or di-isobutyl phthalate, at a relatively low donor level, and then second with a titanating agent, such as titanium tetrachloride, to produce a catalyst component. The catalyst component is activated with an aluminum alkyl cocatalyst. An organosilane compound can be added as a stereoselectivity control agent. The activated catalyst is used in the polymerization of olefins, particularly propylene, to obtain a polymer product with a broad molecular weight distribution.

    摘要翻译： 形成包括氯化乙氧基镁，然后处理该固体先用于电子给体的聚烯烃的催化剂组分的方法，特别是邻苯二甲酸二乙酯或二异丁基邻苯二甲酸酯，在相对低的施主能级，然后第二与钛化剂，搜索 如四氯化钛，以产生催化剂组分。 将催化剂组分与烷基铝助催化剂活化。 在有机硅烷化合物可以被添加作为一个立体选择性控制剂。 将活化的催化剂是烯烃，特别是丙烯的聚合中使用，以获得聚合物产物具有宽的分子量分布。

    Homogeneous - heterogeneous catalyst system for polyolefins
    5.
    发明公开
    Homogeneous - heterogeneous catalyst system for polyolefins 失效
    均聚物异源基因聚合烯烃的分解体系。

    公开(公告)号：EP0536104A1

    公开(公告)日：1993-04-07

    申请号：EP92870154.9

    申请日：1992-09-23

    申请人： FINA TECHNOLOGY, INC.

    发明人： Shamshoum, Edwar S. ,  Reddy, Baireddy R. ,  Elder, Michael J. ,  Rauscher, David J.

    IPC分类号： C08F10/00 ,  C08F4/602

    CPC分类号： C08F10/00 ,  C08F4/63904 ,  C08F4/63912 ,  C08F4/63922 ,  C08F110/06 ,  C08F2/00 ,  C08F2500/04 ,  C08F2500/18

    摘要： This invention concerns a catalyst system comprising at least one homogeneous catalyst and at least one heterogeneous catalyst, specifically, a metallocene catalyst and a conventional Ziegler-Natta catalyst, respectively. This invention is useful in the polymerization of any polymer in which separate polymerizations with a homogeneous catalyst and with a heterogeneous catalyst are possible, but preferably, polymerization of olefins, more preferably, a-olefins, and, most preferably, propylene. This invention provides a catalyst system which facilitates use of a homogeneous catalyst but eliminates the disadvantages of such a system. This invention produces a polymer with molecular weight distribution (MWD) as broad or broader than the MWD of the heterogeneous catalyst alone. Hydrogen can be used to control molecular weight distribution of a polymer produced with this invention.

    摘要翻译： 本发明涉及包含至少一种均相催化剂和至少一种非均相催化剂，特别是金属茂催化剂和常规齐格勒 - 纳塔催化剂的催化剂体系。 本发明可用于任何聚合物的聚合，其中使用均相催化剂和非均相催化剂进行单独聚合是可能的，但优选烯烃聚合，更优选α-烯烃，最优选丙烯。 本发明提供了促进使用均相催化剂但消除了这种体系的缺点的催化剂体系。 本发明生产的分子量分布（MWD）比单独的非均相催化剂的MWD宽或宽。 可以使用氢来控制用本发明生产的聚合物的分子量分布。

    Method for the preparation of metallocene catalysts
    10.
    发明公开
    Method for the preparation of metallocene catalysts 有权
    茂金属催化剂的制备方法

    公开(公告)号：EP1234837A1

    公开(公告)日：2002-08-28

    申请号：EP02075520.3

    申请日：2002-02-11

    申请人： FINA TECHNOLOGY, INC.

    发明人： Gauthier, William J. ,  Lopez, Margarito ,  Rauscher, David J. ,  Campbell, Donald G., Jr. ,  Kerr, Margaret Elaine

    IPC分类号： C08F10/00

    CPC分类号： C08F10/00 ,  C08F4/65904 ,  C08F4/65912 ,  C08F4/65927 ,  C08F110/06 ,  C08F4/65916 ,  C08F2500/16 ,  C08F2500/18 ,  C08F2500/12 ,  C08F2500/03 ,  C08F2500/15

    摘要： Process of preparing silica-supported catalysts. A support material comprising silica particles impregnated with an alumoxane co-catalyst with at least one-half of the co-catalyst disposed within the internal pore volume of the silica is contacted with a dispersion of a metallocene catalyst in an aromatic solvent. The dispersion and support are mixed at a temperature of about 10°C or less to enable the metallocene to become reactively supported on and impregnated within the alumoxane-impregnated silica particles. The supported catalyst is recovered from the aromatic solvent and washed with an aromatic hydrocarbon and then a paraffinic hydrocarbon at a temperature of about 10°C or less. The washed catalyst is dispersed in a viscous mineral oil.

    摘要翻译： 制备二氧化硅负载型催化剂的方法。 包含用铝氧烷助催化剂浸渍的二氧化硅颗粒与载体在二氧化硅的内孔体积内的至少一半助催化剂的载体材料与金属茂催化剂在芳族溶剂中的分散体接触。 分散体和载体在约10℃或更低的温度下混合以使茂金属能够反应性负载并浸渍在铝氧烷浸渍的二氧化硅颗粒内。 从芳香族溶剂中回收负载型催化剂，并在约10℃或更低的温度下用芳烃然后用链烷烃洗涤。 洗过的催化剂分散在粘稠的矿物油中。