Catalyst components and catalysts for the polymerization of alph

Details Catalyst components and catalysts for the polymerization of alph Catalyst components and catalysts for the polymerization of alph

1981-01-21

1983-08-16

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252429C, 526125, C08F 402, C08F 464

Patent

active

043990541

ABSTRACT:
Catalyst components which comprise the reaction product of a Ti compound and a Mg dihalide and which are in the form of spherical particles having an average diameter of 1 to 100 microns, a surface area of 300 to 500 m.sup.2 /g, and a porosity of 0.3 to 0.4 cc/g are disclosed, as are catalysts also in the form of spherical particles prepared therefrom and useful in the polymerization of ethylene and of alpha-olefins CH.sub.2 .dbd.CHR in which R is alkyl radical having from 1 to 6 carbon atoms, and the polymerization of the alpha-olefins therewith.

REFERENCES:
patent: 3594330 (1971-07-01), Delbouille et al.
patent: 3769233 (1973-10-01), Hermans et al.
patent: 3953414 (1976-04-01), Galli et al.
patent: 4098979 (1978-07-01), Maemoto et al.
patent: 4107413 (1978-08-01), Gianni et al.
patent: 4149990 (1979-04-01), Giannini et al.

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