A method for the production of conventional polyether polyols and polyether polyols having a low unsaturation

摘要

A productive process for making conventional and low- unsaturation polyether polyols is disclosed. The process involves continuous removal of allyl alcohol and lower allyl alcohol propoxylates from the polyol during manufacture. The process can be performed at high temperatures and/or low catalyst concentrations. Polyether polyols with exceptionally low monol contents can be prepared.