Union Carbide Chemicals & Plastics Technology Corporation

Union Carbide Corporation

Union Carbide Chemicals and Plastics Company, Inc.

David N Edwards

Kiu H Lee

Arthur E Marcinkowsky

Frederick John Karol

John Robert Briggs

Robert J Jorgensen

Fathi David Hussein

Richard W Wegman

Leonard Sebastian Scarola

Ronald Steven Eisinger

Edgar C Baker

Robert J Bernier

John Henry Moorhouse

Seung J Rhee

A process for producing sticky polymers at polymerization reaction temperatures in excess of the softening temperatures of the sticky polymers in a fluidized bed reactor in the presence of an inert particulate material which comprises utilizing as a support material for the catalyst, a support which includes silica having an average particle size of from about 60 to about 200 microns.

Process for producing sticky polymers

Ethylene copolymers having a very low molecular weight are continuously prepared in a fluidized bed in the presence of reduced concentrations of hydrogen, at improved catalyst activity and polymer productivity, by effecting polymerization in the presence of a dialkylzinc compound.

Preparation of very low molecular weight polyethylene in a fluidized bed

A process for removing diene from ethylene propylene diene monomer resin by subjecting said resin containing diene monomer to microwave energy in an amount for a time sufficient to evolve diene vapors while simultaneously passing a gas through said resin to removing said evolved diene vapors.

Process for removing dienes from ethylene propylene diene monomer resins

A process for producing sticky polymers at polymerization reaction temperatures in excess of the softening temperature of the sticky polymers in a fluidized bed reactor catalyzed by a transition metal catalyst, which comprises conducting the polymerization reaction above the softening temperatures of the sticky polymers in the presence of about 0.3 to about 60 weight percent, based on the weight of the final product of an inlet particulate material having a mean particle size of from about 0.01 to about 10 micron meters whereby polymer agglomeration of the sticky polymers is maintained at a size suitable for continuously producing the sticky polymers.

A process for the preparation of aluminoxanes comprising introducing, under reaction conditions, at least one stream of water beneath the surface of an agitated solution of a hydrocarbyl aluminum compound in such a manner that the stream of water is essentially immediately dispersed on contact with the solution.

Process for the preparation of aluminoxanes

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Charleston, WV, United States of America

David N Edwards