Exxon Chemical Patents, Inc.

Brenton G Jones

David Y Chung

Donald A White

William M Davis

Richard S Auda

Hans G Woudboer

Lawrence W Flatley

Ronald C Kowalski

Gregory Mark Vero

Lawrence William Flatley, Jr

Multiple sequential chemical reactions on a polymeric feedstock are carried out in an extruder with multiple reaction zones. Each reaction zone has means for introduction of reagents, for mixing of reagents with polymer and for removal of by/co-products or unreacted reagents.

Multiple reaction process in melt processing equipment

Process for producing a functionalized thermoplastic polymer

A process for cooling rubber crumb wherein the rubber crumb is presented for cooling to a first stage pneumatic conveyor containing a hot wet first stage air stream. The rubber crumb is cooled in the first stage pneumatic conveyor to a first temperature, whereupon the cooled rubber crumb is separated from the first stage air stream and transferred to a second stage air stream of cool dry air. A second stage pneumatic conveyor transports the rubber crumb in the second stage air stream for additional cooling.

Two-stage pneumatic conveying process for rubber cooling

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Overijse, Belgium

Brenton G Jones