Monoolefin catalysts and method for the preparation thereof

Details Monoolefin catalysts and method for the preparation thereof Monoolefin catalysts and method for the preparation thereof

1980-06-16

1982-11-16

Garvin, Patrick

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

526128, C08F 464

Patent

active

043594026

ABSTRACT:
The invention herein is directed toward a method for forming a coating on the surface of a catalyst and includes the steps of dissolving a membrane forming compound in a hdyrocarbon solvent, adding the catalyst to the solvent and agitating to form a mixture and finally drying the mixture to form particles of the catalyst having a coating of the membrane forming compound. Particularly suitable for the polymerization of monoolefins are Ziegler-Natta catalyts which can be coated according to the foregoing method. The compounds forming the coating include the silicone greases obtained by mixing a filler material with a dimethylpolysiloxane fluid.

REFERENCES:
patent: 2842504 (1958-07-01), Jones
patent: 2976253 (1961-03-01), Edwards
patent: 3849334 (1974-11-01), Frielingsdorf et al.
patent: 4235747 (1980-11-01), Leung
Rose et al., The Condensed Chemical Dictionary, Fifth Edition (1956), Reinhold Pub. Corp., N.Y., N.Y., p. 1169.

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