Catalyst composition, method for producing same and method for polymerization of 1-olefins with same

Abstract From the Canadian patent

Supported catalyst compositions 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. Catalytically promoted polymerizations of 1-olefins proceed efficiently to products of specially adapted utility for molding and particularly, the production of blow molded articles. The polymerization activity of the catalyst …