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    • 7. 发明授权
    • Polymerizing olefins with a novel catalyst
    • 用新型催化剂聚合烯烃
    • US4376061A
    • 1983-03-08
    • US227691
    • 1981-01-23
    • Harold E. SwiftRichard W. Lunden
    • Harold E. SwiftRichard W. Lunden
    • C08F10/00C08F4/02C08F4/64
    • C08F10/00
    • There is provided a solid, particulate, catalytic complex suitable for the stereospecific polymerization of olefins prepared by reducing TiCl.sub.4, contacting the resultant reduced solid with a complexing agent to obtain a treated solid and contacting the treated solid with TiCl.sub.4 in the presence of silica which has been treated with an alkylaluminum halide. When such a catalyst complex is combined with a suitable activator to polymerize olefins, a high degree of stereospecificity is attained, the activity of the catalyst complex is reduced for polymerization control and the efficiency of the titanium employed is enhanced.
    • 提供了适合于通过还原TiCl 4制备的烯烃的立体有择聚合的固体,颗粒状催化络合物,使得到的还原固体与络合剂接触以获得经处理的固体,并在二氧化硅存在下使经处理的固体与TiCl 4接触, 用卤化烷基铝处理。 当这种催化剂络合物与合适的活化剂结合以使烯烃聚合时,可获得高度的立体定向性,催化剂络合物的活性降低,从而聚合控制得到提高,并且提高了所用钛的效率。