Phillips Petroleum Company

Grover W Cone

Max P McDaniel

Elizabeth Ann Benham

M Bruce Welch

Kent E Mitchell

Melvin B Welch

Max P Mcdaniel

A process is disclosed for the particle form polymerization of olefins. The process employs a titanium-containing having hydrocarbon soluble titanium components. The resulting catalyst is pretreated with an organometallic reducing agent prior to the introduction of the catalyst into the polymerization zone to give a catalyst which can be used satisfactorily in a loop reactor with lower levels of cocatalyst.

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Bartlesville, OK, United States of America

Grover W Cone