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Methods for polymer synthesis

United States Patent

9,512,269
December 6, 2016
View the Complete Patent at the US Patent & Trademark Office
The present invention provides methods for reducing induction periods in epoxide-CO.sub.2 copolymerizations. In certain embodiments, the methods include the step of contacting an epoxide with CO.sub.2 in the presence of two catalysts: an epoxide hydrolysis catalyst and an epoxide CO.sub.2 copolymerization catalyst. In another aspect, the invention provides catalyst compositions comprising a mixture of an epoxide hydrolysis catalyst and an epoxide CO.sub.2 copolymerization catalyst.
Allen; Scott D. (Ithaca, NY), Simoneau; Christopher A. (Ithaca, NY), Keefe; William D. (Ithaca, NY), Conuel; Jeff R. (Ithaca, NY)
Novomer, Inc. (Ithaca, NY)
14/ 367,333
20150051369
December 20, 2012
GOVERNMENT SUPPORT The invention was made in part with United States Government support under grants DE-FE0002474 awarded by the Department of Energy. The United States Government has certain rights in the invention.