WATER AND SOLVENT FREE PROCESS FOR ALKOXYLATION

摘要

A water and solvent free process for alkoxylation of mixed polyhydric compounds comprising at least two different polyhydric compounds each having at least 3 hydroxyl groups is disclosed. The process comprises that at least one polyhydric compound (I) has a melting point exceeding applied alkoxylation temperature and that at least one polyhydric compound (II) has a melting point below said alkoxylation temperature. Compound (II) is used as solution medium and/or as carrier for said compound (I). Yielded mixed polyhydric alkoxylate has a combined monoalkylene, dialkylene and trialkylene glycol content of less than 0.5% by weight.