Polymerization catalyst, preparation, and use

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

1991-06-03

1992-04-28

Garvin, Patrick P.

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526114, 526119, 526125, 526352, 502103, C08F 4646

Patent

active

051090848

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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