Plasma Treated EVOH Multilayer Film
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United States of America Patent
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Issued Date -
Dec 29, 2011
app pub date -
Feb 27, 2009
filing date -
Feb 27, 2009
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Abstract
The present invention relates to barrier film structures and, more particularly, to film structures having EVOH and fluoropolymer in skin layer. The addition of fluoropolymer in the skin layer allows trim recycling and improves the metal appearance in the metallization by reducing die lines and scratches. Improved barrier performances have been achieved by using plasma treatment during metal vacuum deposition in the vacuum chamber.
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