Process for producing microfibrillated cellulose
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United States of America Patent
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Feb 11, 2014
Grant Date -
May 31, 2012
app pub date -
Jul 2, 2010
filing date -
Jul 7, 2009
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Abstract
A process for treating cellulosic fibers comprising pre-treating the fibers with an enzyme in a first enzymatic treatment followed by mechanical pre-treating the fibers in a first mechanical treatment and a second enzymatic treatment followed by a second mechanical treatment of the fibers to form micofibrillated cellulose. In this way it is possible to produce mircofibrillated cellulose (MFC) in an improved and energy efficient way.
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