Process for preparing polyolefins

Details Process for preparing polyolefins Process for preparing polyolefins

1995-01-30

1996-07-30

Wu, David W.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526132, 526133, 526153, 5263482, 5263483, 5263484, 5263485, 5263486, 526901, 502117, 502120, C08F 234

Patent

active

055412718

ABSTRACT:
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.

REFERENCES:
patent: 3701766 (1972-10-01), Delbouille et al.
patent: 4396534 (1983-08-01), Matsuura et al.
patent: 4613581 (1986-09-01), Maruyama et al.
patent: 4716206 (1987-12-01), Fujita et al.
patent: 4732882 (1988-03-01), Allen et al.
patent: 4849390 (1989-07-01), Sano et al.

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