Joseph M Aubuchon

US Patent:

6069212, May 30, 2000

Filed:

Aug 19, 1997

Appl. No.:

8/914683

Inventors:

Scott Ching-Sheng Hung - Houston TX
Kwok-Fu Lee - Houston TX
Joseph Michael Aubuchon - Houston TX
Daryl Henry Webster - Gainesville GA
James Hanawalt Lee - Naperville IL

Assignee:

BP Amoco Corporation - Chicago IL

International Classification:

C08F 1006
C08F 234

US Classification:

526 65

Abstract:

Method and apparatus are described for continuous vapor phase polymerization of a polymerizable monomer or mixture thereof to produce normally solid polymer substances in two or more serially disposed vapor phase polymerization reactors, each containing a quench-cooled subfluidized particulate bed of polymerized monomer. More specifically, method and apparatus for transfer of polymer particles between high pressure, reactive gas-filled, continuous, vapor-phase polymerization reactors while maintaining each at independently selected operating conditions.