DOUBLE METAL CYANIDE CATALYST, ITS PRODUCTION METHOD, AND PRODUCTION METHOD OF POLYOL USING IT

摘要

PROBLEM TO BE SOLVED: To provide a double metal cyanide catalyst having acceptable activity in oxyalkylation reaction, and capable of producing polyols with reduced levels of high molecular weight tail.

SOLUTION: In this production method of a double metal cyanide catalyst, at least one metal salt, at least one metal cyanide salt, at least one organic complexing ligand, at least one alkaline metal salt, and at least one functionalized polymer, are combined in a condition adequate to form the catalyst.

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