Supported catalyst for olefin polymerization

Details Supported catalyst for olefin polymerization Supported catalyst for olefin polymerization

1983-03-18

1984-10-23

Garvin, Patrick

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

Catalyst or precursor therefor

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

502104, 502115, 502116, 502119, 502113, 502117, C08F 464, C08F 462, C08F 468

Patent

active

044789521

ABSTRACT:
A method for the preparation of supported Ziegler-Natta catalysts comprising contacting a transition metal alkoxide and/or siloxide compound with a magnesium-containing reagent. The magnesium reagent is prepared in the presence of a magnesium chloride support utilizing an anhydrous and oxygen-free mixture of magnesium halide and magnesium metal, slurried in a hydrocarbon solvent. A halogenated hydrocarbon is added to produce the magnesium-containing reagent. Thereafter the transition metal alkoxide and/or siloxide compound is mixed with the slurry. An alkylating agent is added to form an active supported olefin polymerization catalyst.

REFERENCES:
patent: 4172050 (1979-10-01), Gessell
patent: 4224186 (1980-09-01), Lowery et al.
patent: 4276191 (1981-06-01), Karayannis et al.
patent: 4314912 (1982-02-01), Lowery et al.

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