PROCESSES FOR PREPARING ETHYLENE OXIDE-CAPPED POLYOLS
摘要
The present invention is directed to a process for preparing ethylene oxide-capped polyols which involves combining a double-metal cyanide-catalyzed polyol with a basic catalyst. The present invention is also directed to a process for preparing ethylene oxide-capped polyols which involves combining a double-metal cyanide-catalyzed polyol with a base-catalyzed polyol. The present invention is also directed to a process for preparing ethylene oxide-capped polyols in which removal of catalyst residues or salts formed by the neutralization of the basic catalyst is not required. The polyols produced by the processes of the present invention have a relatively high content of primary hydroxyl groups.
申请公布号
CA2443117(C)
申请公布日期
2012.11.20
申请号
CA20032443117
申请日期
2003.09.29
申请人
BAYER AKTIENGESELLSCHAFT;BAYER POLYMERS LLC
发明人
EHLERS, STEPHAN;PAZOS, JOSE F.;STEINLEIN, CHRISTIAN;SCHNEIDER, MICHAEL;HOFMANN, JOERG;KEYVANI, MAJID;HAYES, JOHN E.