Union Carbide Chemicals & Plastics Technology Corporation

Union Carbide Chemicals & Plastics

Benjamin Roman Rozenblat

Leonard Sebastian Scarola

Anthony Charles Neubauer

Robert J Bernier

Urho S Haapala

Jorge O Buhler-Vidal

There is provided a method which reduces fines while maintaining the bulk handling advantages of granular or particulate elastomers such as those produced in gas phase processes and which affords continuous bulk handling of synthetic rubbers or elastomers such as those produced in solution and/or suspension processes. The method comprises (1) feeding an crumb form elastomer or a granular elastomer which contains fines along with optionally one or more filler materials to a mixer/extruder where it is masticated and melted into a compound; (2) pumping the compound through an orifice of the mixer/extruder, and (3) cutting and forming the compound into shaped pellets ranging in size from about 0.5 to 30 mm.

Form of synthetic rubber

Method and apparatus for the post reaction treatment of resins produced by fluidized bed polymerization of alpha olefins wherein an extruder is coupled in communication with the reactor and all necessary devolatilization of monomer, deactivation of catalysts and addition of additives are performed in the extruder.

Fluidized bed product discharge process

Growing community of inventors

Old Bridge, NJ, United States of America

Benjamin Roman Rozenblat