Polymerization catalyst and process

Details Polymerization catalyst and process Polymerization catalyst and process

1980-08-04

1982-05-04

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252429C, 526123, 526124, 526137, 526143, 526159, 526172, 526114, 526119, C08F 464

Patent

active

043281214

ABSTRACT:
A transition metal compound such as titanium tetrahydrocarbyloxides and a metal hydrocarbyloxide compound such as magnesium hydrocarbyloxides are chemically combined to form a first catalyst component which is treated with a second catalyst component comprising an organometallic compound precipitating agent to produce an active olefin polymerization catalyst. High polymer yields are realized per gram of catalyst when the catalyst thus produced is treated with a halide ion exchanging source and used with an organometallic cocatalyst.

REFERENCES:
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patent: 3644318 (1972-02-01), Diedrich et al.
patent: 3670043 (1972-06-01), Kubicek et al.
patent: 3901863 (1975-08-01), Berger et al.
patent: 4039472 (1977-08-01), Hoff
patent: 4089808 (1978-05-01), Zucchini et al.
patent: 4105846 (1978-08-01), Hoff et al.
patent: 4235746 (1980-11-01), Dietz
patent: 4239650 (1980-12-01), Franke et al.

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