GAS-BARRIER MATERIAL HAVING EXCELLENT ANTI-BLOCKING PROPERTY AND METHOD OF PRODUCING THE SAME
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United States of America Patent
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Issued Date -
Aug 18, 2011
app pub date -
Sep 25, 2008
filing date -
Sep 27, 2007
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Abandoned
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Abstract
A gas-barrier material having a gas-barrier layer which comprises a polycarboxylic acid polymer, the gas-barrier layer having a chemical bond stemming from an isocyanate group formed in the surface thereof, and the content of nitrogen being at least not less than 1 atom % per the total amount of carbon, oxygen and nitrogen in the surface layer. The gas-barrier material comprising a polycarboxylic acid polymer which is a high hydrogen-bonding polymer exhibits excellent anti-blocking property without dependent upon the degree of crosslinking.
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