POLYETHER RESINS, AND PROCESS FOR PREPARING THE SAME

摘要

A process for the preparation of a polyether resin having an epoxy group content of less than 0.2 meq/g and containing on average from (see formula I)to (see formula II) primary hydroxyl groups, by reacting a glycidyl ester of a C9-11 branched aliphatic acid with an aliphatic primary polyhydric alcohol having n primary hydroxyl groups, and 5 to 16 carbon atoms, n having a value of 3 to 6, in the presence of an etherification catalyst characterised in that the etherification catalyst is a tin, zinc or iron compound.