Catalyst component for polymerizing ethylene or copolymerizing e

Details Catalyst component for polymerizing ethylene or copolymerizing e Catalyst component for polymerizing ethylene or copolymerizing e

1988-02-01

1989-06-27

Garvin, Patrick P.

Catalyst, solid sorbent, or support therefor: product or process

Forming or treating a sphere, process only

Forming other than by liquid immersion

502111, 502125, 526125, C08F 464

Patent

active

048430498

ABSTRACT:
A catalyst component is in the form of a granular spherical solid with at least 80% of the granules between 30 and 40 microns in size, a service area of 15 to 30 m.sup.2 /g and a porosity of 40 to 80 volumes % and definable (in atomic proportions) by the formula: ##STR1## where Et denotes the ethyl group; OEt denotes the ethoxy group and OR' is an alkoxy group containing from 1 to 8 carbon atoms in the alkyl portion, and in which the ratio of trivalent titanium to the sum of trivalent and tetravelent titanium is in the range from 0.8/1 to 1/1.
The solid catalyst component is obtained by:

REFERENCES:
patent: 3135809 (1964-06-01), Bosmajian
patent: 4376062 (1983-03-01), Hamer et al.
patent: 4421674 (1983-12-01), Invernizzi et al.
patent: 4506027 (1985-03-01), Invernizzi et al.
patent: 4506029 (1985-03-01), Band

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