Barrier film with molecular expansion under strain
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United States of America Patent
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Mar 29, 2016
Grant Date -
Dec 25, 2014
app pub date -
Feb 4, 2013
filing date -
Feb 2, 2012
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Abstract
A process for treating a solid substrate coupled to a polyol, wherein said polyol bears free hydroxyl groups, comprising the grafting of at least one fatty acid having an aliphatic chain comprising at least 12 carbon atoms onto said solid substrate coupled to a polyol by esterification of at least one free hydroxyl group of said polyol.
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