发明申请
US20050096488A1 Single reactor synthesis of KOH-capped polyols based on DMC-synthesized intermediates 有权
基于DMC合成的中间体的单体反应器合成KOH-封端的多元醇

Single reactor synthesis of KOH-capped polyols based on DMC-synthesized intermediates
摘要:
The present invention relates to processes for preparing ethylene oxide (EO)-capped polyols in which removal of catalyst residues or salts formed by the neutralization of the basic catalyst is not required prior to discharging the polyol from the reactor because neutralization occurs during or after the starter charge of a subsequent batch. The inventive processes allow for the preparation of DMC-catalyzed intermediates and their base-catalyzed EO caps within the same reactor. Polyols produced by the processes of the invention have a high content of primary hydroxyl groups and may be useful for producing polyurethane foams, elastomers, sealants, coatings, adhesives and the like.
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