POLYISOBUTYLENE PREPARED AT HIGH VELOCITY AND CIRCULATION RATE
摘要
A method of making a polyisobutylene polymer in a recirculating loop reactor with one or more reaction tubes in contact with a heat transfer medium includes controlling the delta P and polymerization reaction to provide a linear velocity of the reaction mixture of at least 11 ft/sec in the one or more tubes of the loop reactor and/or controlling the delta P and polymerization reaction of steps (b) and (c) to provide a recirculation ratio of the recirculation rate to the feed rate of at least 30:1. Typically, the process utilizes a recirculating pump operating at a at a pressure differential of from 35 psi to 70 psi.
申请公布号
EP2771369(A4)
申请公布日期
2015.06.03
申请号
EP20120844092
申请日期
2012.10.10
申请人
TPC GROUP LLC
发明人
SHAIKH, SOHEL, K.;CHIU, ALFRED;BRADLEY, PATRICK, L.;VALDEZ, GILBERT, D.;MACATANGAY, PEGGY, J.