PROCESS FOR PREPARING POLYETHER ALCOHOLS

摘要

The invention provides processes for preparation of polyether alcohols d) by reaction of a) at least one compound having at least three hydrogen atoms reactive with alkylene oxides and having a molecular weight Mn of not more than 600 g/mol with b) alkylene oxides using c) catalysts, characterised in that the reaction is carried out in the presence of a polyether alcohol d) with a hydroxyl number of 100-800 mg KOH/g and a functionality of 1.5 to 8.