Process for the preparation of nitrocellulose solutions having a low water content
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United States of America Patent
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Mar 5, 2013
Grant Date -
May 27, 2010
app pub date -
Mar 31, 2008
filing date -
Apr 7, 2007
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Abstract
The present invention relates to the continuous preparation of alcohol- and plasticizer-free finished nitrocellulose solutions having a particularly low water content by partial distillative falling-film evaporation of comparatively water-rich, optionally emulsion-like crude nitrocellulose solutions which are preferably provided by dissolving nitrocelluloses of the customary solid forms offered, which are known to be initially water-moist as a result of the preparation, in preferably ethyl acetate.
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