Catalyst composition and method for the preparation thereof

Details Catalyst composition and method for the preparation thereof Catalyst composition and method for the preparation thereof

1974-12-16

1976-10-12

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252430, 252431P, 526100, 526172, C08F 478

Patent

active

039856763

ABSTRACT:
Supported catalyst compositions made by incorporating preformed materials comprising the reaction product of organophosphorus compounds such as the organophosphates and organophosphites with chromium trioxide, wherein the organic moiety is a hydrocarbon radical, e.g., alkyl, aralkyl, aryl, cycloalkyl, or the like or combinations thereof. Typical supports constitute an inorganic material of high surface area, especially a high pore volume (>1.96 cc/g) silica xerogel. The catalysts are activated by heating in a dry, oxygen containing atmosphere. The catalysts are utilized alone or in conjunction with other catalytic ingredients such as organometallic and/or organo non-metallic reducing agents. Polymerizations of 1-olefins promoted with the subject catalysts proceed efficiently to products of specially adapted utility for molding, particularly to resins useful for the production of blow molded articles.

REFERENCES:
patent: 3474080 (1969-10-01), Rekers
patent: 3704287 (1972-11-01), Johnson
patent: 3907849 (1975-09-01), Meyer

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