Double metal cyanide complex catalyst for producing polyol
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United States of America Patent
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Sep 30, 2003
Grant Date -
Nov 28, 2002
app pub date -
Mar 29, 2002
filing date -
Apr 18, 2001
priority date (Note) -
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Abstract
A double metal cyanide complex catalyst for producing polyol, which is produced by using monovalent alcohol and polyvalent alcohol as a complexing agent. The double metal cyanide complex catalyst has advantages in that when polyol is produced by an epoxide polymerization reaction, the amount of unsaturated polyol produced is small, catalyst activation time is short, and the production yield of polyol is increased. There is no need to remove remaining catalyst from polyol after the polymerization reaction.
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