Double metal cyanide catalyst having a controlled reactivity for preparing a polyol and preparation thereof
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United States of America Patent
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Mar 25, 2014
Grant Date -
Mar 31, 2011
app pub date -
Nov 4, 2008
filing date -
May 21, 2008
priority date (Note) -
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Abstract
A double metal cyanide catalyst of the present invention having a controlled reactivity for preparing a polyol, which contains an ether ligand having a molecular weight of less than 200 and a glycol ligand having a molecular weight of less than 200 can be used in the preparation of a polyol having a unsaturation degree suitable for direct use for producing a polyurethane having suitable properties.
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