Catalyst for polymerization of alpha-olefins

Details Catalyst for polymerization of alpha-olefins Catalyst for polymerization of alpha-olefins

1980-09-29

1982-10-12

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431R, 252431C, 252431N, 252431P, 526124, C08F 464

Patent

active

043538134

ABSTRACT:
Alpha-olefin polymerization catalyst comprising organometallic promoter and component obtained by contacting at least one halogenated aliphatic with solid reaction product of components comprising (1) titanium(IV) halide; (2) organic electron donor; and (3) pretreatment product prepared from components comprising (a) magnesium alcoholate, (b) Group II or IIIA metal alkyl, and optionally, (c) pretreatment modifier.

REFERENCES:
patent: 3094568 (1963-06-01), Hay et al.
patent: 3365434 (1968-01-01), Coover et al.
patent: 3432513 (1969-03-01), Miller et al.
patent: 3549717 (1970-12-01), Itakura et al.
patent: 4069169 (1978-01-01), Toyoda et al.
patent: 4146502 (1979-03-01), Yokoyama et al.
patent: 4180636 (1979-12-01), Hirota et al.
patent: 4183824 (1980-01-01), Shiga et al.
patent: 4242231 (1980-12-01), Ueno et al.
patent: 4277370 (1981-07-01), Karayannis et al.

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