Process for the preparation of catalyst component for the polyme

Details Process for the preparation of catalyst component for the polyme Process for the preparation of catalyst component for the polyme

1980-12-15

1982-06-01

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526125, C08F 464

Patent

active

043326978

ABSTRACT:
Disclosed is a process for the preparation of the former catalyst component of a catalyst for the polymerization of .alpha.-olefins composed of a titanium-based catalyst component and an organo aluminium compound. According to the above process, a magnesium halide is copulverized with aluminium isopropoxide to form a first copulverization product, to which an electron donor compound is added for copulverization to form a second copulverization product, and the second copulverization product is brought into contact with a titanium halide followed by washing with an inert organic solvent.
In the polymerization of .alpha.-olefins by use of the former catalyst component as above, both polymerization activity per unit weight of the catalyst component and yield of stereoregular polymers are remarkably increased.

REFERENCES:
patent: 4223118 (1980-09-01), Tsubaki et al.
patent: 4243552 (1981-01-01), Welch et al.

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