DOUBLE METAL CYANIDE CATALYSTS FOR PRODUCING POLYETHER POLYOLS

摘要

The invention provides new double metal cyanide (DMC) catalysts for preparin g polyetherpolyols by the polyaddition of alkylene oxides to starter compounds which contain active hydrogen atoms, wherein the catalyst comprises a) double meta l cyanide compounds, b) bile acids or their salts, esters or amides and c) organic complex ligands. The catalysts according to the invention show greatly increased activity during preparation of a polyetherpolyol.