Release paper and method of manufacture
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United States of America Patent
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Aug 4, 2020
Grant Date -
May 7, 2015
app pub date -
Jun 14, 2013
filing date -
Jun 15, 2012
priority date (Note) -
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Abstract
Release base papers with improved surface properties and more efficient manufacturing potential are made using cellulose nanofibrils (CNF) along with high freeness, less refined pulp. Release papers serve as the backing for common adhesive labels, for industrial film coatings, and also for certain food processing uses. The CNF may be added to the furnish and processed to paper, or the CNF may be added as a coating onto a partially dried web of paper. The CNF may optionally be combined with a starch and a starch crosslinker.
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