Preparing polyolefins with a narrow particle size distribution a

Details Preparing polyolefins with a narrow particle size distribution a Preparing polyolefins with a narrow particle size distribution a

1978-09-07

1980-09-02

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526144, 526159, C08F 464

Patent

active

042205557

ABSTRACT:
Polyolefins are prepared wherein at least about ninety-five percent of the product is retained on a 100 mesh screen. The polymerization process involves contacting the alpha-olefin with a Ziegler catalyst system wherein the catalyst has been prepared by mixing the active catalytic particles with a fibrillatable polyolefin and a non-fibrillatable polyolefin followed by ballmilling the mixture for a period of time sufficient to cause a fibrous mat to form, entrapping the catalyst particles in the mat which is, in turn, carried by the non-fibrillatable polyolefin.

REFERENCES:
patent: 3094568 (1963-06-01), Hay et al.
patent: 3990993 (1976-11-01), Wristers
Hackh's Chemical Dictionary, Fourth Edition, (1969), p. 472, McGraw-Hill Book Co., N.Y., N.Y.

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