公开(公告)号：US5541271A

公开(公告)日：1996-07-30

申请号：US380149

申请日：1995-01-30

申请人： Akira Sano ,  Shiraishi Takeichi ,  Kunihiro Suzuki ,  Mitsuo Okamoto ,  Katsumi Usui ,  Hiroyuki Shimizu ,  Kazuo Matsuura

发明人： Akira Sano ,  Shiraishi Takeichi ,  Kunihiro Suzuki ,  Mitsuo Okamoto ,  Katsumi Usui ,  Hiroyuki Shimizu ,  Kazuo Matsuura

IPC分类号： C08F4/658 ,  C08F2/34 ,  C08F4/60 ,  C08F10/00

CPC分类号： C08F10/00 ,  Y10S526/901

摘要： A polyolefin having superior particle properties such as an extremely high bulk density, a large average particle diameter and a narrow particle size distribution, and having a narrow molecular weight distribution, is obtained in high yield, by polymerizing an olefin, using a catalyst comprising a solid catalyst component and an organometallic compound, the solid catalyst component being obtained by reacting a) a silicon oxide and/or an aluminum oxide, the reaction product of an organomagnesium compound and a compound of the general formula Me(OR).sub.n X.sub.Z-n, and a titanium compound, in the presence of ROH, and further reacting the resulting reaction product with a compound of the general formula AlR.sub.q X.sub.3-q.

摘要翻译： 通过聚合烯烃，可以高收率地获得具有优异的颗粒性能如聚合密度高，平均粒径大，粒度分布窄，分子量分布狭窄的聚烯烃， 固体催化剂组分和有机金属化合物，所述固体催化剂组分通过使a）氧化硅和/或氧化铝，有机镁化合物与通式Me（OR）n XZ-n的化合物的反应产物， 和钛化合物，在ROH存在下进一步使所得反应产物与通式AlRqX 3-q的化合物反应。