Union Carbide Chemicals & Plastics Technology Corporation

Gary Harry Williams

Leonard Sebastian Scarola

Robert Lorenz Boysen

Duan-Fan Wang

Robert Cecil Brown

Mark Gregory Goode

Thomas Edward Spriggs

Robert Darrell Olson

John Henry Moorhouse

Robert J Bernier

Kevin Joseph Cann

Maria A Apecetche

Natarajan Muruganandam

Gregory George Smith

Robert Joseph Noel Bernier

Fathi David Hussein

Ronald Steven Eisinger

David Merrill Rebhan

Ronald Irvin Raether

David Nunn Jones

Joseph Patrick Welch

A process for producing polymer in a gas phase reactor by introducing a stream of monomer and gas into a polymerization zone while providing at least one liquid component in the polymerization zone.

Gas phase polymerization process

There is provided a post-reactor process for a polymer, especially an elastomeric polymer, prepared by a gas phase polymerization in the presence of an inert particulate material comprising: introducing the polymer containing inert particulate material into a polishing vessel in the presence of a fluidizing gas under polishing conditions.

Post-reactor process for treating polymers prepared in a gas phase polymerization in the presence of an inert particulate material

The present invention provides a process and apparatus for feeding powders such as fine, cohesive, or powdery particulate materials from a low pressure system to a high pressure system. In a preferred embodiment a process and apparatus of pressurizing and feeding carbon black fluff to a polymerization reactor is provided particularly a gas phase fluidized polymerization reactor to provide for a close-coupling of a carbon black reactor to a polymerization reactor.

Process for feeding particulate material to a fluidized bed reactor

The present invention provides a process and apparatus for feeding powders such as fine, cohesive, or powdery particulate materials from a low pressure system to a high pressure system. There is provided in a preferred embodiment a process and apparatus of pressurizing and feeding carbon black fluff to a polymerization reactor, particularly a gas phase fluidized polymerization reactor to provide for a close-coupling of a carbon black reactor to a polymerization reactor.

A process for producing polymers in a gas phase reactor by continuously introducing a stream of monomer and gas into a polymerization zone while maintaining the temperature within the polymerization zone below the dew point temperature of at least one monomer present in said polymerization zone.

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Flemington, NJ, United States of America

Gary Harry Williams