Catalysts for olefin polymerization
    7.
    发明授权
    Catalysts for olefin polymerization 失效
    用于烯烃聚合的催化剂

    公开(公告)号:US5393719A

    公开(公告)日:1995-02-28

    申请号:US194606

    申请日:1994-02-10

    CPC分类号: C08F10/00 C08F110/02

    摘要: Olefins can be polymerized in the presence of a catalyst system composition comprising chromium oxides supported on a inorganic oxide support, a pyrrole-containing compound and a non-hydrolyzed metal alkyl. The use of this type of polymerization catalyst in a polymerization process can produce an olefin comonomer in-situ, resulting in polymers having decreased density and increased branching.

    摘要翻译: 烯烃可以在包含负载在无机氧化物载体上的铬氧化物,含吡咯化合物和非水解金属烷基的催化剂体系组合物存在下聚合。 在聚合过程中使用这种类型的聚合催化剂可以原位产生烯烃共聚单体,导致聚合物具有降低的密度和增加的支化。

    Process for olefin polymerization
    8.
    发明授权
    Process for olefin polymerization 失效
    烯烃聚合方法

    公开(公告)号:US5331070A

    公开(公告)日:1994-07-19

    申请号:US976124

    申请日:1992-11-13

    IPC分类号: C08F10/00 C08F110/02 C08F4/24

    CPC分类号: C08F10/00 C08F110/02

    摘要: Olefins can be polymerized in the presence of a catalyst system composition comprising chromium supported on an inorganic oxide support, a pyrrole-containing compounds, and a metal alkyl. The use of this type of polymerization process can produce an olefin comonomer in-situ, resulting in polymers having decreased density and increased branching.

    摘要翻译: 烯烃可以在包含负载在无机氧化物载体上的铬的催化剂体系组合物,含吡咯的化合物和金属烷基的存在下聚合。 使用这种类型的聚合方法可以原位产生烯烃共聚单体,导致聚合物具有降低的密度和增加的支化。

    Polymerization catalysts and processes
    9.
    发明授权
    Polymerization catalysts and processes 失效
    聚合催化剂和工艺

    公开(公告)号:US5340785A

    公开(公告)日:1994-08-23

    申请号:US23746

    申请日:1993-02-26

    IPC分类号: C08F4/22 C08F4/24 C08F10/00

    CPC分类号: C08F10/00

    摘要: Supported olefin polymerization catalyst systems can be produced using waste chromium compounds. Olefin polymers can be prepared using a catalyst system composition comprising a waste chromium compound and an alkyl aluminum compound, both supported on an inorganic oxide support, wherein at least a portion of the waste chromium compound is in a hexavalent state.

    摘要翻译: 支持的烯烃聚合催化剂体系可以使用废铬化合物生产。 烯烃聚合物可以使用包含负载在无机氧化物载体上的废铬化合物和烷基铝化合物的催化剂体系组合物制备,其中至少一部分废铬化合物处于六价态。

    Polymerization catalysts and processes
    10.
    发明授权
    Polymerization catalysts and processes 失效
    聚合催化剂和工艺

    公开(公告)号:US5399539A

    公开(公告)日:1995-03-21

    申请号:US265572

    申请日:1994-06-24

    IPC分类号: C08F4/22 C08F4/24 C08F10/00

    CPC分类号: C08F10/00

    摘要: Supported olefin polymerization catalyst systems can be produced using waste chromium compounds. Olefin polymers can be prepared using a catalyst system composition comprising a waste chromium compound and an alkyl aluminum compound, both supported on an inorganic oxide support, wherein at least a portion of the waste chromium compound is in a hexavalent state.

    摘要翻译: 支持的烯烃聚合催化剂体系可以使用废铬化合物生产。 烯烃聚合物可以使用包含负载在无机氧化物载体上的废铬化合物和烷基铝化合物的催化剂体系组合物制备,其中至少一部分废铬化合物处于六价态。