专利检索 ap:("Dow Global Technologies LLC") AND inv:"DARE, Gerald W." 第 1 页

1.

发明公开
PRODUCTION PROCESS FOR DIGLYCIDYL-CAPPED POLYALKYLENE GLYCOLS WITH IN-SITU REMOVAL OF 1,4-DIOXANE 审中-公开

公开(公告)号：EP3368586A1

公开(公告)日：2018-09-05

申请号：EP16788900.5

申请日：2016-10-19

申请人： Dow Global Technologies LLC

发明人： KNIGHT, Troy E. , YOUNG, Thomas C. , DARE, Gerald W. , CRAMPTON, Hannah L. , HOOK, Bruce D. , SIRIGNANO, Pasquale , VINCI, Daniele

IPC分类号： C08G59/02 , C08G59/04 , C08G59/22

CPC分类号： C08G59/04 , C08G59/022 , C08G59/025 , C08G59/22

摘要： Produce diglycidyl-capped polyalkylene glycol by (a) providing epihalohydrin, a polyalkylene glycol that contains and ethylene oxide component and a Lewis acid; (b) coupling the epihalohydrin to the polyalkylene glycol using the Lewis acid as a catalyst to produce a coupling product; (c) stripping 1,4-dioxane from the coupling product; and (d) epoxidation of the coupling product by addition of a base to form diglycidyl-capped polyalkylene glycol in an organic phase.