申请人:Japan Polyolafins Co., Ltd.
公开号:US06121182A1
公开(公告)日:2000-09-19
A catalyst component for polyolefin production catalysts comprising a metallocene compound represented by general formula (1) (symbols have the meanings as described in the specification), polyolefin production catalyst containing the component, and method for producing polyolefin with the catalyst are provided. Use of a catalyst containing the novel metallocene compound as a catalyst component of the invention in polymerization of .alpha.-olefin, particularly propylene, enables one to prepare high rigid, high melting point isotactic polypropylene useful as an industrial material for automobiles and the like, more specifically isotactic polypropylene having highly controlled stereoregulartity and regioregularity, particularly the one having a high regioregularity that has been difficult to achieve with conventional metallocene catalysts. ##STR1##
本发明提供了用于聚烯烃生产催化剂的催化剂组分,包括由一般式(1)表示的金属茂化合物(符号的含义如说明书所述),含有该组分的聚烯烃生产催化剂以及使用该催化剂生产聚烯烃的方法。使用含有新型金属茂化合物的催化剂作为本发明中的催化剂组分,特别是在α-烯烃聚合,尤其是丙烯聚合中,使人们能够制备高刚性、高熔点的等晶聚丙烯,作为汽车等工业材料有用,更具体地说是具有高度控制的立体规则性和区域规则性的等晶聚丙烯,特别是具有高区域规则性的等晶聚丙烯,这在传统的茂金属催化剂中难以实现。