Catalyst component for use in the polymerization of .alpha.-olef

Details Catalyst component for use in the polymerization of .alpha.-olef Catalyst component for use in the polymerization of .alpha.-olef

1979-07-23

1981-03-03

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431R, 252431C, 526125, C08F 402, C08F 464

Patent

active

042539846

ABSTRACT:
A supported titanium catalyst component is produced by cogrinding in the presence of an ethylenically unsaturated hydrocarbon an organo aluminum catalyst component with a supported titanium (IV) halide on a magnesium halide until the intensity of the 14.8.degree. and 30.2.degree. x-ray diffraction peak of magnesium halide are reduced in intensity. The resulting supported titanium halide catalyst component, when employed with an organo aluminum catalyst component to form a catalyst system is highly useful for the stereoregular polymerization of .alpha.- olefins as well as the copolymerization of .alpha.-olefins.

REFERENCES:
patent: 3094568 (1963-06-01), Hay et al.
patent: 3990903 (1976-11-01), Wristers
patent: 4021599 (1977-05-01), Kochnar et al.
patent: 4086185 (1978-04-01), Shirai et al.
patent: 4107415 (1978-08-01), Giannini et al.

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