.alpha.-olefin polymerization catalyst and process for producing

Details .alpha.-olefin polymerization catalyst and process for producing .alpha.-olefin polymerization catalyst and process for producing

1996-06-18

2000-04-18

Wu, David W.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Plural component system comprising a - group i to iv metal...

502103, 502117, 502125, 502126, 5261253, 526128, B01J 3100

Patent

active

060515260

ABSTRACT:
An .alpha.-olefin polymerization catalyst which comprises (A) a solid catalyst component obtained by treating a solid product obtained by contacting a compound having an M--O bond (M is the element of the 1st, 2nd, 13th and 14th Groups in the Periodic Table) with an organomagnesium compound in the presence of an electron donor, with an electron donor and successively a halide compound of metal of the 4th to 6th Groups in the Periodic Table, (B) an organoaluminum compound, and (C) an electron donative compound, and a process for producing an .alpha.-olefin polymer polymerizing an .alpha.-olefin with said catalyst.

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patent: 4983561 (1991-01-01), Sasaki et al.
patent: 4990479 (1991-02-01), Ishimaru et al.
patent: 5354820 (1994-10-01), Funabashi
patent: 5498770 (1996-03-01), Hosaka et al.

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