公开(公告)号：US4332697A

公开(公告)日：1982-06-01

申请号：US216766

申请日：1980-12-15

申请人： Kouhei Kimura ,  Hiroyasu Ohba ,  Atsushi Murai

发明人： Kouhei Kimura ,  Hiroyasu Ohba ,  Atsushi Murai

IPC分类号： C08F4/02 ,  C08F4/46 ,  C08F4/50 ,  C08F4/64 ,  C08F4/652 ,  C08F10/00

CPC分类号： C08F4/022 ,  C08F10/00

摘要： Disclosed is a process for the preparation of the former catalyst component of a catalyst for the polymerization of .alpha.-olefins composed of a titanium-based catalyst component and an organo aluminium compound. According to the above process, a magnesium halide is copulverized with aluminium isopropoxide to form a first copulverization product, to which an electron donor compound is added for copulverization to form a second copulverization product, and the second copulverization product is brought into contact with a titanium halide followed by washing with an inert organic solvent.In the polymerization of .alpha.-olefins by use of the former catalyst component as above, both polymerization activity per unit weight of the catalyst component and yield of stereoregular polymers are remarkably increased.

摘要翻译： 公开了一种制备用于聚合由钛基催化剂组分和有机铝化合物组成的α-烯烃的催化剂的前催化剂组分的方法。 根据上述方法，将卤化镁与异丙醇铝共烧以形成第一共混物，向其中加入电子给体化合物以共混以形成第二共沉积产物，并将第二共沉积产物与钛 卤化物，然后用惰性有机溶剂洗涤。 在通过使用如上所述的前述催化剂组分的α-烯烃的聚合中，催化剂组分的每单位重量的聚合活性和立体规则聚合物的产率都显着增加。