Method for making copolymers of lactide and a 1:4-3:6 dianhydrohexitol
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United States of America Patent
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Sep 18, 2012
Grant Date -
Aug 5, 2010
app pub date -
Aug 7, 2008
filing date -
Aug 9, 2007
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Abstract
Polyester-carbonate copolymers are prepared by copolymerizing lactide with a 1:4-3:6 dianhydrohexitol in the presence of a carbonate precursor and a polymerization catalyst. The copolymers have an elevated glass transition temperature, relative to polylactide resins.
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