SOLID TITANIUM CATALYST INGREDIENT, CATALYST FOR OLEFIN POLYMERIZATION, AND METHOD OF POLYMERIZING OLEFIN
申请人:Mitsui Chemicals, Inc.
公开号:EP2221320A1
公开(公告)日:2010-08-25
A solid titanium catalyst component (I) comprising titanium, magnesium, halogen, a specific cyclic ester compound (a) and a specific cyclic ester compound (b), an olefin polymerization catalyst containing this catalyst component (I), and an olefin polymerization process using this olefin polymerization catalyst are disclosed. According to the solid titanium catalyst component, the olefin polymerization catalyst and the process for preparing an olefin polymer of the invention, an olefin polymer having high stereoregularity and a wide molecular weight distribution can be prepared with high activity, preparation of an olefin polymer excellent not only in molding properties such as high-speed streatchability and high-speed moldability but also in rigidity becomes possible, and besides, production cost can be reduced.
本发明公开了一种由钛、镁、卤素、特定环酯化合物(a)和特定环酯化合物(b)组成的固体钛催化剂组分(I)、一种含有该催化剂组分(I)的烯烃聚合催化剂以及一种使用该烯烃聚合催化剂的烯烃聚合工艺。根据本发明的固体钛催化剂组分、烯烃聚合催化剂和烯烃聚合物的制备工艺,可以制备出具有高立体规整度和宽分子量分布的高活性烯烃聚合物,不仅可以制备出具有优异成型性能(如高速吸附性和高速成型性)的烯烃聚合物,而且还可以制备出具有优异刚性的烯烃聚合物,此外,还可以降低生产成本。