Polymerization catalyst and process

Details Polymerization catalyst and process Polymerization catalyst and process

1978-12-11

1981-01-06

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252429C, 526114, 526125, C08F 464

Patent

active

042435528

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 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: 3642746 (1972-02-01), Kasniwa et al.
patent: 3758621 (1973-09-01), Morikawa et al.
patent: 3953414 (1976-04-01), Galli et al.
patent: 4013823 (1977-03-01), Longi et al.
patent: 4107412 (1978-08-01), Welch
patent: 4107413 (1978-08-01), Giannini et al.
patent: 4107415 (1978-08-01), Giannini et al.
patent: 4130503 (1978-12-01), Foddr
patent: 4143223 (1979-03-01), Toyota et al.

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