Patent ID: 8309677
Filing Date: 2012-11-13
Classification: B01J,C08G

Abstract:
1. A polymerization process comprising: (a) introducing a reaction medium into a polymerization reactor comprising a tray box with side walls and a plurality of vertically-spaced sloped trays rigidly coupled to the side walls; (b) causing said reaction medium to flow downwardly in said polymerization reactor over said rigidly coupled vertically-spaced trays, wherein the average thickness of said reaction medium flowing on said vertically-spaced trays is maintained at about 2.5 inches or more; and (c) withdrawing said reaction medium from said polymerization reactor, wherein the degree of polymerization (DP) of said reaction medium withdrawn from said polymerization reactor is at least about 25 percent greater than the DP of said reaction medium introduced into said polymerization reactor.