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Polyestercarbonates which exhibit improved processibility

United States Patent

September 28, 1999
View the Complete Patent at the US Patent & Trademark Office
The invention relates to a polyestercarbonate polymer which comprises repeating units of a mono-unsaturated aliphatic dicarboxylic acid having about 12 to about 20 carbon atoms. Preferred dicarboxylic acids for incorporation into the polymer are cis-octadec-9-enedioic acid or trans-octadec-9-enedioic acid. The use of these mono-unsaturated acids results in polymers with lower glass transition temperatures, and enhances processibility.
Krabbenhoft; Herman Otto (Scotia, NY)
General Electric Company (Schenectady, NY)
09/ 110,277
July 6, 1998
This invention was made with Government support under Government Contract No. DEFC36-956010099, awarded by the Department of Energy. The Government has certain rights in this invention.