abstract |
The present invention relates to a process for the preparation of polyethercarbonate polyols from one or more H-functional starter substances, one or more alkylene oxides and carbon dioxide in the presence of at least one double metal cyanide (DMC) catalyst, wherein the double metal cyanide catalyst is a complexing component selected from the group consisting of Polycarbonate diol, polyether carbonate polyol, polyethylene glycol diol and poly (tetramethylene ether diol). |