Polymerization catalyst and process

Details Polymerization catalyst and process Polymerization catalyst and process

1980-10-16

1982-05-25

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526142, 526125, 526114, C08F 464

Patent

active

043315585

ABSTRACT:
Alpha-olefins are polymerized employing a catalyst which forms on mixing a catalyst component A formed by milling together a magnesium halide or manganous halide with selected catalyst adjuvants comprising aryl carbonic acid esters followed by treatment of the resulting milled product with a halogenated tetravalent titanium compound and combining the product thus formed with a cocatalyst component B comprising at least one of an organoaluminum compound and an organoaluminum monohalide with or without an aromatic ester as a part of the cocatalyst system.

REFERENCES:
patent: 3758621 (1973-09-01), Morikawa et al.
patent: 4013823 (1977-03-01), Longi et al.

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