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    Process for the preparation of a catalytic system, process for the (CO)polymerization of olefins and (CO)polymers of at least one olefin
    1.
    发明授权
    Process for the preparation of a catalytic system, process for the (CO)polymerization of olefins and (CO)polymers of at least one olefin 失效
    用于制备催化体系的方法，用于（CO）聚合至少一种烯烃的烯烃和（CO）聚合物的方法

    公开(公告)号：US06555632B1

    公开(公告)日：2003-04-29

    申请号：US09111736

    申请日：1998-07-08

    申请人： Nicola Zandona

    发明人： Nicola Zandona

    IPC分类号： C08F442

    CPC分类号： C08F10/00 ,  C08F4/63908 ,  C08F4/63912 ,  C08F4/63916 ,  C08F4/63922 ,  C08F4/65908 ,  C08F4/65916 ,  C08F4/65922 ,  C08F4/65912

    摘要： Process for the preparation of a catalytic system according to which a mixture of a halogenated neutral metallocene derived from a transition metal chosen from groups IIIB, IVB, VB and VIB of the Periodic Table and of an organoaluminium compound is prepared and an ionising agent is added thereto. (Co)polymerisation process according to which a mixture of a halogenated neutral metallocene as defined above and of an organoaluminium compound is prepared, the olefin is brought into contact with this mixture and an ionising agent is added thereto.

    摘要翻译： 制备催化体系的方法，其中制备衍生自选自元素周期表IIIB，IVB，VB族和VIB族的过渡金属的卤化中性金属茂与有机铝化合物的混合物，并加入电离剂 到此。 （Co）聚合方法，根据该方法制备如上定义的卤化中性茂金属和有机铝化合物的混合物，使烯烃与该混合物接触，并向其中加入离子化剂。

    Metallocene compound
    4.
    发明授权
    Metallocene compound 失效
    茂金属化合物

    公开(公告)号：US5767300A

    公开(公告)日：1998-06-16

    申请号：US681636

    申请日：1996-07-29

    申请人： Michael Aulbach ,  Hans-Friedrich Herrmann ,  Dieter Bilda ,  Carsten Bingel

    发明人： Michael Aulbach ,  Hans-Friedrich Herrmann ,  Dieter Bilda ,  Carsten Bingel

    IPC分类号： B01J31/22 ,  C07F17/00 ,  C08F4/60 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/642 ,  C08F4/643 ,  C08F4/646 ,  C08F4/6592 ,  C08F4/68 ,  C08F4/69 ,  C08F10/00 ,  C07F7/02 ,  C07F9/00

    CPC分类号： C07F17/00 ,  C08F10/00 ,  C08F4/63912 ,  C08F4/63922 ,  Y10S526/943

    摘要： The present invention relates to a metallocene compound of the formula I which is suitable for olefin polymerization ##STR1## where M is a metal of group IVb, Vb or VIb of the Periodic Table. X are each a hydrogen atom, a halogen atom or a C.sub.1 -C.sub.40 -radical OR.sup.4 or NR.sup.4.sub.2, where R.sup.4 are a C.sub.1 -C.sub.20 hydrocarbon radical m and p are 1, 2 or 3, n is 1 or 2, L each a .pi. ligand which coordinates to the central atom M, M.sup.2 are each a silicon atom, a germanium atom or a tin atom, R.sup.1 are a C.sub.1 -C.sub.20 -radical, R.sup.2 are a C.sub.1 -C.sub.20 -radical or a .pi. ligand which coordinates to the central atom M, A are each a bidentate C.sub.1 -C.sub.40 -hydrocarbon group, Z are each a boron atom, a silicon atom, a germanium atom or a tin atom, R.sup.3 are each a hydrogen atom or a C.sub.1 -C.sub.20 -radical, o is zero, 1 or 2, Hal are each a halogen atom, and where n is 1 if R.sup.2 is a .pi. ligand which coordinates to the central atom M and n is 2 if R.sup.2 is a C.sub.1 -C.sub.20 -radical.

    摘要翻译： 本发明涉及适用于烯烃聚合的式I的茂金属化合物，其中M是元素周期表IVb，Vb或VIb族金属。 X分别为氢原子，卤原子或C 1 -C 40基OR 4或NR 42，其中R 4为C 1 -C 20烃基，p为1,2或3，n为1或2，L各为1 配位于中心原子M，M2的配体各自为硅原子，锗原子或锡原子，R 1为C 1 -C 20基团，R 2为与中心配位的C 1 -C 20基团或π配位体 原子M，A各自为二齿C1-C40烃基，Z分别为硼原子，硅原子，锗原子或锡原子，R3各自为氢原子或C1-C20基，o为 0，1或2，Hal各自为卤素原子，如果R2为与中心原子M配位的π配体，n为1，如果R2为C1-C20基，n为2。

    Process for producing polyolefins and polyolefin catalyst
    5.
    发明授权
    Process for producing polyolefins and polyolefin catalyst 失效
    生产聚烯烃和聚烯烃催化剂的方法

    公开(公告)号：US5719241A

    公开(公告)日：1998-02-17

    申请号：US224604

    申请日：1994-04-07

    申请人： Abbas Razavi ,  Guy L.G. Debras

    发明人： Abbas Razavi ,  Guy L.G. Debras

    IPC分类号： C08F4/642 ,  C08F4/60 ,  C08F4/602 ,  C08F4/639 ,  C08F4/6392 ,  C08F4/64 ,  C08F4/6592 ,  C08F10/00 ,  C08F110/02 ,  C08F210/16

    CPC分类号： C08F210/16 ,  C08F10/00 ,  C08F110/02 ,  C08F4/63904 ,  C08F4/63912 ,  C08F4/63916 ,  C08F4/63922 ,  Y10S526/905 ,  Y10S526/943

    摘要： The present invention provides a process for preparing polyolefins having a multimodal or at least bimodal molecular weight distribution by contacting in a reaction mixture under polymerization conditions at least one olefin and a catalyst system comprising a supported catalyst-component comprising an alumoxane and at least two metallocenes containing the same transition metal and selected from mono, di, and tri-cyclopentadienyls and substituted cyclopentadienyls of a transition metal and wherein at least one of the metallocenes is bridged and at least one of the metallocenes is unbridged.

    摘要翻译： 本发明提供了一种制备具有多峰或至少双峰分子量分布的聚烯烃的方法，所述聚烯烃在聚合条件下在反应混合物中接触至少一种烯烃和催化剂体系，所述催化剂体系包含负载型催化剂组分，其包含铝氧烷和至少两种金属茂 含有相同的过渡金属并选自过渡金属的单，二和三环戊二烯基和取代的环戊二烯基，并且其中至少一个金属茂被桥接并且至少一个金属茂是未桥接的。

    Method for utilizing triethyaluminum to prepare an alumoxane support for an active metallocene catalyst
    10.
    发明授权
    Method for utilizing triethyaluminum to prepare an alumoxane support for an active metallocene catalyst 失效
    利用三乙基铝制备活性金属茂催化剂的铝氧烷载体的方法

    公开(公告)号：US4925821A

    公开(公告)日：1990-05-15

    申请号：US268834

    申请日：1988-11-08

    申请人： Main Chang

    发明人： Main Chang

    IPC分类号： C08F4/02 ,  C08F4/60 ,  C08F4/622 ,  C08F4/639 ,  C08F4/6392 ,  C08F10/00

    CPC分类号： C08F10/00 ,  C08F4/63912 ,  C08F4/63916 ,  C08F4/6392 ,  C08F4/63922 ,  Y10S526/943

    摘要： This invention relates to a process for preparing a supported metallocene alumoxane catalyst for use in the polymerization of olefins. The invention particularly relates to the use of silica gel containing from about 6 to about 20 percent by weight adsorbed water as the catalyst support material. It has been found that such silica gel may be safely added to a solution, of trialkylaluminum to form by direct reaction with the adsorbed water content of the silica gel catalyst support material the majority of the alumoxane component requirement of the catalyst system. An alkylalumoxane coated silica gel is formed to which a trimethylaluminum treated metallocene may be added and the resulting material dried to free-flowing powder. The dry free flowing powder may then be used as a supported metallocene alumoxane catalyst complex for gas phase or liquid phase polymerization of olefins. The supported catalyst produced by such procedure has an activity at least comparable to a catalyst of similar composition which is produced exclusively with trimethylaluminum as the alumoxane forming aluminum alkyl.

    摘要翻译： 本发明涉及制备用于烯烃聚合的负载金属茂铝氧烷催化剂的方法。 本发明特别涉及含有约6至约20重量％吸附水的硅胶作为催化剂载体材料的用途。 已经发现，通过与催化剂体系的大部分铝氧烷组分要求的硅胶催化剂载体材料的吸附水含量直接反应，可以将这种硅胶安全地加入到三烷基铝的溶液中。 形成烷基铝氧烷涂覆的硅胶，其中可以加入三甲基铝处理的茂金属，并将所得材料干燥成自由流动的粉末。 然后可将干燥的自由流动的粉末用作用于烯烃气相或液相聚合的负载金属茂铝氧烷催化剂络合物。 通过这种方法制备的负载型催化剂具有至少与类似组合物的催化剂相当的活性，该催化剂专门用作为形成烷基铝的铝氧烷的三甲基铝制备。