Process for the production of polyether carbonate polyols
AssigneeCovestro Deutschland AG
InventorsJörg Hofmann, Christoph Gürtler, Stefan Grasser, Aurel Wolf
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Abstract
The present invention relates to a method for producing polyether carbonate 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 comprises a complex-forming component selected from the group consisting of polycarbonate diol, polyether carbonate polyol, polyethylene glycol diol and poly(tetramethylene ether diol).
Claims8
A method for producing a polyether carbonate polyol from one or more H-functional starter substances, one or more alkylene oxides and carbon dioxide, in the presence of a double metal cyanide (DMC) catalyst, wherein the DMC catalyst comprises at least one complex-forming component selected from the group consisting of polycarbonate diol, polyether carbonate polyol, polyethylene glycol diol and poly(tetramethylene ether diol).
Dependencies are inferred from the claim text.