Barrier Film Structures
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United States of America Patent
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Issued Date -
Nov 10, 2011
app pub date -
Feb 13, 2009
filing date -
Feb 13, 2009
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Abstract
A polymeric film structure exhibiting improved barrier properties and which is formed in the absence of a primer. The film structure is produced by coating a surface of a polymeric substrate with a solution of a polyvinyl alcohol-vinyl amine copolymer, an aldehyde-containing crosslinking agent and a crosslinking promoting acid catalyst and metallized with a metal layer. The polymer substrate is made out of polyolefin materials such as polypropylene.
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