PRODUCTION OF CELLULOSE ESTERS IN THE PRESENCE OF A COSOLVENT
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United States of America Patent
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Issued Date -
Sep 20, 2012
app pub date -
Jun 1, 2012
filing date -
Feb 13, 2008
priority date (Note) -
Abandoned
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Abstract
Ionic liquids and cellulose ester compositions and processes for producing ionic liquids and cellulose esters. Cellulose esters can be produced by subjecting a cellulose-ionic liquid solution comprising cellulose, one or more ionic liquids, and one or more co-solvents to esterification to thereby produce an esterified medium comprising a cellulose ester. The co-solvents employed in the present invention can be either miscible or immiscible with the cellulose-ionic liquid solution but can be readily dispersed or soluble in the esterified medium.
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