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13 条记录 (耗时 0.015 秒)

    Polymerization catalyst, preparation, and use
    2.
    发明授权
    Polymerization catalyst, preparation, and use 失效
    聚合催化剂，制备和用途

    公开(公告)号：US5109084A

    公开(公告)日：1992-04-28

    申请号：US709269

    申请日：1991-06-03

    申请人： Clifford C. Lee

    发明人： Clifford C. Lee

    IPC分类号： C08F10/00

    CPC分类号： C08F10/00

    摘要： A process as disclosed for improving the particle size of a olefin polymerization catalyst. The process involves combining the catalyst with an alkoxide-containing liquid comprising a transition metal alkoxide and an aluminum alkyl, causing said alkoxide and said aluminum alkyl to react for form a precipitate and then recovering the resulting solid. Also disclosed are the catalysts produced by such a process and the use of such catalysts in the polymerization of olefins.

    摘要翻译： 公开的用于改进烯烃聚合催化剂的粒度的方法。 该方法包括将催化剂与包含过渡金属醇盐和烷基铝的含醇盐的液体结合，使所述醇盐和所述烷基铝反应形成沉淀，然后回收所得固体。 还公开了通过这种方法制备的催化剂以及这种催化剂在烯烃聚合中的用途。

    Polymerization catalyst, preparation, and use
    5.
    发明授权
    Polymerization catalyst, preparation, and use 失效

    公开(公告)号：US5079204A

    公开(公告)日：1992-01-07

    申请号：US516855

    申请日：1990-04-30

    申请人： Clifford C. Lee

    发明人： Clifford C. Lee

    IPC分类号： C08F4/646 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： A process as disclosed for improving the particle size of a olefin polymerization catalyst. The process involves combining the catalyst with an alkoxide-containing liquid comprising a transition metal alkoxide and an aluminum alkyl, causing said alkoxide and said aluminum alkyl to react for form a precipitate and then recovering the resulting solid. Also disclosed are the catalysts produced by such a process and the use of such catalysts in the polymerization of olefins.

    Olefin polymerization catalyst and method for production and use
    9.
    发明授权
    Olefin polymerization catalyst and method for production and use 失效
    烯烃聚合催化剂及其生产和使用方法

    公开(公告)号：US5068212A

    公开(公告)日：1991-11-26

    申请号：US569805

    申请日：1990-08-20

    申请人： Clifford C. Lee ,  M. Bruce Welch

    发明人： Clifford C. Lee ,  M. Bruce Welch

    IPC分类号： C08F4/64 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： A new highly active olefin polymerization catalyst as disclosed. The catalyst is prepared by contacting a magnesium dihalide with a halogenated titanium alkoxide to obtain a first solid, washing this first solid until it is substantially free of soluble halogenated titanium alkoxide, then contacting the first solid with a titanium tetrachloride to yield a second solid.

    摘要翻译： 一种新的高活性烯烃聚合催化剂。 通过使二卤化镁与卤化钛醇盐接触以获得第一固体，洗涤该第一固体直到其基本上不含可溶性卤代烷氧基钛，然后使第一固体与四氯化钛接触以产生第二固体来制备催化剂。

    Catalyst and olefin polymerization
    10.
    发明授权
    Catalyst and olefin polymerization 失效
    催化剂和烯烃聚合

    公开(公告)号：US4562168A

    公开(公告)日：1985-12-31

    申请号：US611263

    申请日：1984-05-17

    申请人： Clifford C. Lee

    发明人： Clifford C. Lee

    IPC分类号： C08F4/00 ,  C08F4/60 ,  C08F4/64 ,  C08F10/00

    CPC分类号： C08F10/00

    摘要： A polymerization catalyst providing a good balance of productivity and polymer fines prepared by reacting a metal halide, such as MgCl.sub.2, with a titanium compound, such as Ti(OEt).sub.4, to form a first catalyst component; mixing a solution of said first catalyst component with an organoaluminum compound at a temperature in the range of -100.degree. to 70.degree. C.; then heating to a higher temperature in the range of 50.degree. C. to 110.degree. C. to form additional precipitate, and then reacting the resulting solid with a halogenating agent.

    摘要翻译： 通过使金属卤化物如MgCl 2与钛化合物如Ti（OEt）4反应制备的生产率和聚合物细粉的良好平衡的聚合催化剂形成第一催化剂组分; 将所述第一催化剂组分与有机铝化合物的溶液在-100至70℃的温度范围内混合; 然后加热到50℃至110℃的较高温度，以形成另外的沉淀，然后使所得固体与卤化剂反应。