Bimetallic indenoindolyl catalysts
    1.
    发明授权
    Bimetallic indenoindolyl catalysts 失效
    双金属茚并吲哚基催化剂

    公开(公告)号:US06841500B2

    公开(公告)日:2005-01-11

    申请号:US10308842

    申请日:2002-12-03

    摘要: Catalyst systems useful for olefin polymerization are disclosed. The catalysts include a bimetallic complex that incorporates two linked indenoindolyl groups, each of which is pi-bonded through its cyclopentadienyl ring to one of the metals. Compared with conventional indenoindolyl complexes, the bimetallic complexes of the invention have enhanced ability to give polyolefins with desirably low melt indices. Certain bimetallic indenoindolyl complexes also provide a way to broaden polymer molecular weight distribution and thereby improve processability simply by regulating the amounts of comonomer and activator used in the polymerization.

    摘要翻译: 公开了可用于烯烃聚合的催化剂体系。 催化剂包括一种双金属络合物,其包含两个连接的茚并吲哚基,其中每一个通过其环戊二烯基被键合到一个金属上。 与常规茚并吲哚基配合物相比,本发明的双金属络合物具有提高具有理想的低熔点指数的聚烯烃的能力。 某些双金属茚并吲哚基配合物也提供了一种拓宽聚合物分子量分布的方法,从而简单地通过调节聚合中使用的共聚单体和活化剂的量来提高加工性能。

    Olefin polymerization process
    4.
    发明授权
    Olefin polymerization process 失效
    烯烃聚合工艺

    公开(公告)号:US07781549B2

    公开(公告)日:2010-08-24

    申请号:US11899090

    申请日:2007-09-04

    摘要: A slurry process for polymerizing ethylene is disclosed. The process comprises polymerizing ethylene in the presence of an α-olefin and a catalyst comprising an activator and a supported bridged indeno[1,2-b]indolyl zirconium complex. The process produces polyethylene characterized by good incorporation of the α-olefin and low long-chain branching. The process is capable of forming high-molecular-weight polyethylene and has good hydrogen sensitivity.

    摘要翻译: 公开了一种用于聚合乙烯的浆料方法。 该方法包括在α-烯烃和包含活化剂和负载的桥连茚并[1,2-b]吲哚基锆络合物的催化剂存在下聚合乙烯。 该方法生产聚乙烯,其特征在于良好地引入α-烯烃和低长链支化。 该方法能够形成高分子量聚乙烯并具有良好的氢敏感性。

    Olefin polymerization catalyst system
    8.
    发明授权
    Olefin polymerization catalyst system 失效
    烯烃聚合催化剂体系

    公开(公告)号:US07122497B1

    公开(公告)日:2006-10-17

    申请号:US11221287

    申请日:2005-09-07

    IPC分类号: B01J31/00 B01J37/00

    摘要: A catalyst system useful for polymerizing olefins is disclosed. The catalyst system comprises a cocatalyst and a supported transition metal prepared from a halogen-containing Group 4–6 transition metal compound and an organoaluminum-siloxane containing mixture. The latter mixture, which is prepared from an organoaluminum compound and an organomagnesium-siloxane reaction product, incorporates a chelating ligand. The invention includes a method for making the catalyst system and a process for polymerizing olefins using the catalyst system. The process is convenient and avoids expensive catalyst components used in known olefin polymerization processes.

    摘要翻译: 公开了一种可用于烯烃聚合的催化剂体系。 催化剂体系包含助催化剂和由含卤素的4-6族过渡金属化合物和含有机铝 - 硅氧烷的混合物制备的负载过渡金属。 由有机铝化合物和有机镁 - 硅氧烷反应产物制备的后一种混合物掺入螯合配体。 本发明包括使用催化剂体系制备催化剂体系的方法和使烯烃聚合的方法。 该方法方便,避免了已知的烯烃聚合方法中使用的昂贵的催化剂组分。

    Clathrochelates as olefin polymerization catalyst components
    9.
    发明授权
    Clathrochelates as olefin polymerization catalyst components 失效
    氯仿作为烯烃聚合催化剂组分

    公开(公告)号:US07026415B2

    公开(公告)日:2006-04-11

    申请号:US10779939

    申请日:2004-02-17

    IPC分类号: C08F4/12 C08F4/26 C08F4/52

    摘要: Catalyst systems and methods for olefin polymerization are disclosed. The polymerizations are performed in the presence of a clathrochelate which comprises a transition metal ion and an encapsulating macropolycyclic ligand. At least one of the capping atoms of the macropolycyclic ligand is a Group 3–10 transition metal or a Group 13 atom. When a capping atom is a Group 3–10 transition metal, the clathrochelate can be used with an activator to polymerize olefins. When a capping atom is a Group 13 atom, the clathrachelate can be used as an activator for an olefin polumerization. Clathrochelates allow polyolefin markers to fine tune catalyst reactivity and polyolefin properties.

    摘要翻译: 公开了用于烯烃聚合的催化剂体系和方法。 聚合反应在包含过渡金属离子和封装的大多环配体的笼形螯合物的存在下进行。 大环配体的至少一个封端原子是3-10族过渡金属或第13族原子。 当封端原子是3-10族过渡金属时,可以使用活化剂来使烯螯合物与烯烃聚合。 当封端原子是第13族原子时,可以使用该杂环化合物作为烯烃聚合的活化剂。 氯酸铜螯合物允许聚烯烃标记物微调催化剂反应性和聚烯烃性能。