Catalyst component and catalyst for the production of very high

Details Catalyst component and catalyst for the production of very high Catalyst component and catalyst for the production of very high

1991-02-22

1991-12-03

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, 502117, 526125, C08F 4654

Patent

active

050700510

ABSTRACT:
A solid catalyst component for the low-pressure polymerization of ethylene and C.sub.3 -C.sub.10 alpha-olefins into very high molecular weight polyolefins is in the form of a spherical granular solid having a surface area of between 20 and 40 m.sup.2 /g, a mean pore radius of between 5,000 and 40,000 .ANG. and a porosity of between 40 and 90 vol %, and is definable by the following formula (in atomic proportions:

REFERENCES:
patent: 3113115 (1963-12-01), Ziegler et al.
patent: 3849334 (1974-11-01), Frielingsdorf et al.
patent: 3992322 (1976-11-01), Dombro et al.
patent: 4421674 (1983-12-01), Invernizzi et al.
patent: 4481342 (1984-11-01), Invernizzi et al.
patent: 4843049 (1989-06-01), Invernizzi et al.

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