Process for preparing polyolefins

Details Process for preparing polyolefins Process for preparing polyolefins

1995-10-23

1997-07-01

Delmendo, Romulo H.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526114, 526119, 5261244, 5261246, 5261248, 502113, 502116, C08F 4654

Patent

active

056440081

ABSTRACT:
Olefin is polymerized using a catalyst comprising a solid catalyst component and an organometallic compound, the solid catalyst component being prepared by reacting 1 a reaction product obtained by reacting the reaction product of Si oxide and/or Al oxide and Ti compound or both Ti compound and V compound (Ti.V component) with organic Al compound, with 2 a reaction product obtained by the reaction of Mg halide, a compound of the general formula Me(OR).sub.n X.sub.z-n and Ti.V component (optional component), and further reacting the reaction product of the above 1 and 2 with 3 a compound of the general formula R.sub.p Si(OR).sub.q X.sub.4-p-q.

REFERENCES:
patent: 3701766 (1972-10-01), Delbouille et al.
patent: 4154915 (1979-05-01), Matsuura et al.
patent: 4396534 (1983-08-01), Matsuura et al.
patent: 4613581 (1986-09-01), Maruyama et al.
patent: 4732882 (1988-03-01), Allen et al.
patent: 5369193 (1994-11-01), Sano et al.
patent: 5463001 (1995-10-01), Sano et al.
patent: 5506183 (1996-04-01), Sano et al.

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