Bimodal silica gel, its preparation and use as a catalyst suppor

Details Bimodal silica gel, its preparation and use as a catalyst suppor Bimodal silica gel, its preparation and use as a catalyst suppor

1991-09-11

1993-07-27

Dees, Carl F.

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

Catalyst or precursor therefor

Silicon containing or process of making

502233, 502247, 502248, 502256, 423339, B01J 2106, B01J 3703

Patent

active

052310663

ABSTRACT:
A bimodal silica gel particle, its method of preparation and its use as a catalyst support in the polymerization of olefins is disclosed. The bimodal silica gel particle exhibits a bimodal pore radius distribution, wherein the silica gel particle has a first average pore radius and a second average pore radius differing by at least about 20 .ANG.. The bimodal silica gel particle is useful as a support for a transition metal-based catalyst to provide a polyolefin having a broad or bimodal molecular weight distribution.

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