Wood fibre acetylation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 27, 2016
Grant Date -
Oct 23, 2014
app pub date -
Jun 8, 2012
filing date -
Jun 10, 2011
priority date (Note) -
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Abstract
Disclosed is a modified refiner system for the acetylation of wood chip and/or wood fiber. The invention comprises a process for the acetylation of wood chip in a refiner system including a feed hopper component, a non-steam digester component and a refiner (defibrator) component in which the chip is contacted with an acetylating fluid between the hopper and the digester components within a connecting multi-zone compression feed screw.
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