| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive active double metal cyanide (DMC) catalyst with enhanced activity, having unsaturated tertiary alcohol as a ligand of a complex. <P>SOLUTION: The double metal cyanide (DMC) catalyst comprises a double metal cyanide compound free from hexanitrometallate, one or more unsaturated tertiary alcohols, and about 0 to about 80 mass%, based on the amount of catalyst, of a functionalized polymer having a number average molecular weight greater than about 200. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
