BIMETALLIC-CYANIDE CATALYSTS USED FOR PREPARING POLYETHER POLYOLS

摘要

The present invention relates to new bimetallic-cyanide catalysts which are used for producing polyether polyols by the poly-addition of alkylene oxides to starter compounds comprising hydrogen atoms. This catalyst contains a) compounds of the bimetallic-cyanide type, b) organic complex ligands differe nt from c), and c) complex ligands obtained by the introduction of a glycidyle ether in the catalyst. These catalysts exhibit a substantially increased activity during the preparation of polyether polyol.