Treatment of cellulose esters
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United States of America Patent
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Oct 13, 2015
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N/A
app pub date -
Apr 18, 2012
filing date -
Feb 13, 2008
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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 esterifying cellulose in a reaction medium comprising one or more ionic liquids. Cellulose esters prepared via the methods of the present invention can be contacted with at least one bleaching agent to produce bleached cellulose esters having a ΔE value of less than 30.
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