Polymerization catalyst, preparation, and use

Details Polymerization catalyst, preparation, and use Polymerization catalyst, preparation, and use

1990-04-30

1992-01-07

Garvin, Patrick P.

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

Catalyst or precursor therefor

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

502103, 502107, 502113, 502117, 502134, 526125, C08F 4646

Patent

active

050792040

ABSTRACT:
A process as disclosed for improving the particle size of a olefin polymerization catalyst. The process involves combining the catalyst with an alkoxide-containing liquid comprising a transition metal alkoxide and an aluminum alkyl, causing said alkoxide and said aluminum alkyl to react for form a precipitate and then recovering the resulting solid. Also disclosed are the catalysts produced by such a process and the use of such catalysts in the polymerization of olefins.

REFERENCES:
patent: 3535299 (1976-10-01), Dassesse et al.
patent: 4325837 (1982-04-01), Capshew et al.
patent: 4326988 (1982-04-01), Welch et al.
patent: 4363746 (1982-12-01), Capshew
patent: 4562168 (1985-12-01), Lee

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