Polyolefin polymerization process, process of producing catalyst

Details Polyolefin polymerization process, process of producing catalyst Polyolefin polymerization process, process of producing catalyst

1992-08-31

1993-04-27

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526119, 526128, 526142, 5263484, 526904, 502107, 502119, 502125, 502127, 502134, C08F 4642

Patent

active

052063143

ABSTRACT:
A polymerization catalyst useful for the polymerization of olefins is prepared by contacting a metal dihalide compound having a metal selected from Group 2 and Group 12 of the Periodic Table and a transition metal compound which is a hydrocarbyloxide of a transition metal selected from Group 4 and Group 5 to thereby form a first catalyst component; contacting the first catalyst component with at least one organoaluminum precipitating agent to form a solid product; and contacting the solid product with an ester and then an activating agent to form a catalyst. Other aspects of the invention include a catalyst produced by the above described process and a polymerization process employing the thus produced catalyst.

REFERENCES:
patent: 4218339 (1980-08-01), Zucchini et al.
patent: 4363746 (1982-12-01), Capshew
patent: 4394291 (1983-07-01), Hawley
patent: 4562168 (1985-12-01), Lee
patent: 4719271 (1988-01-01), Dietz
patent: 4988655 (1991-01-01), Mitchell et al.

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