Olefin polymerization
    1.
    发明授权
    Olefin polymerization 失效
    烯烃聚合

    公开(公告)号:US5104950A

    公开(公告)日:1992-04-14

    申请号:US628038

    申请日:1990-12-17

    IPC分类号: C08F4/54 C08F10/00

    CPC分类号: C08F10/00

    摘要: A lanthanide based olefin polymerization catalyst and its use in polymerization are disclosed. The lanthanide based catalyst is prepared by contacting a lanthanide halide with an ether, then contacting the resulting lanthanide composition with an alkali or alkaline earth metal alkyl compound, and depositing the resulting lanthanide product on a particulate support.

    摘要翻译: 公开了一种镧系元素的烯烃聚合催化剂及其在聚合中的应用。 通过使镧系元素卤化物与醚接触,然后使所得镧系元素组合物与碱金属或碱土金属烷基化合物接触,并将所得的镧系元素产物沉积在颗粒载体上来制备镧系元素的催化剂。

    Olefin polymerization
    2.
    发明授权
    Olefin polymerization 失效
    烯烃聚合

    公开(公告)号:US5021379A

    公开(公告)日:1991-06-04

    申请号:US501056

    申请日:1990-03-29

    IPC分类号: C08F10/00

    CPC分类号: C08F10/00

    摘要: A lanthanide base olefin polymerization catalyst and its use in polymerization are disclosed. The lanthanide based catalyst is prepared by contacting a lanthanide halide with an ether, then contacting the resulting lanthanide composition with an alkali or alkaline earth metal alkyl compound, and depositing the resulting lanthanide product on a particulate support.

    摘要翻译: 公开了一种镧系元素烯烃聚合催化剂及其在聚合中的应用。 通过使镧系元素卤化物与醚接触,然后使所得镧系元素组合物与碱金属或碱土金属烷基化合物接触,并将所得的镧系元素产物沉积在颗粒载体上来制备镧系元素的催化剂。

    Process for olefin polymerization
    6.
    发明授权
    Process for olefin polymerization 失效
    烯烃聚合方法

    公开(公告)号:US5171801A

    公开(公告)日:1992-12-15

    申请号:US615519

    申请日:1990-11-19

    IPC分类号: C08F10/00 C08F110/02

    CPC分类号: C08F10/00 C08F110/02

    摘要: Olefins are polymerized with a catalyst composition which forms on mixing a supported chromium oxide catalyst system and a silane compound. This composition allows the production of one or more comonomers in-situ. The resultant polymer has a lower density, a higher melt index, and a higher high load melt index than polymers produced with a similar catalyst system in the absence of a silane compound.

    摘要翻译: 烯烃与在负载的氧化铬催化剂体系和硅烷化合物混合时形成的催化剂组合物聚合。 该组合物允许原位生产一种或多种共聚单体。 与不存在硅烷化合物的类似催化剂体系制备的聚合物相比,所得聚合物具有较低的密度,较高的熔体指数和更高的高负荷熔体指数。

    Process for producing polymers
    8.
    发明授权
    Process for producing polymers 有权
    生产聚合物的方法

    公开(公告)号:US06531550B1

    公开(公告)日:2003-03-11

    申请号:US09584438

    申请日:2000-05-31

    IPC分类号: C08F464

    摘要: A process of using a catalyst composition to polymerize at least one monomer to produce a polymer. The process comprising contacting the catalyst composition, at least one monomer in a polymerization zone under polymerization conditions to produce the polymer. The catalyst composition is produced by a process comprising contacting at least one organometal compound, at least one solid mixed oxide compound, and at least one organoaluminum compound. The solid mixed oxide compound comprises oxygen and at least two elements selected from the group consisting of groups 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15 of the periodic table, including lanthanides and actinides.

    摘要翻译: 使用催化剂组合物聚合至少一种单体以制备聚合物的方法。 该方法包括在聚合条件下使催化剂组合物,聚合区中的至少一种单体接触以产生聚合物。 催化剂组合物通过包括使至少一种有机金属化合物,至少一种固体混合氧化物化合物和至少一种有机铝化合物接触的方法制备。 固体混合氧化物化合物包含氧和至少两种元素,其选自周期性的第2,3,4,5,5,6,7,8,9,10,11,12,13,14和15组, 表,包括镧系元素和锕系元素。