Coating composition for adhering metallized layers to polymeric films
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United States of America Patent
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Sep 23, 2008
Grant Date -
Feb 8, 2007
app pub date -
Jul 26, 2006
filing date -
Jul 26, 2005
priority date (Note) -
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Abstract
A metallized film and a process for making the film are disclosed. In general, the metallized film includes a polymeric film layer that is coated with a polyester coating composition. A metal layer is then formed on top of the polyester coating. The polyester coating acts as a tie layer between the metal layer and the underlying film. The polyester film composition may be formed from, in one embodiment, isophthalic acid, a sulfomonomer, and 2-methyl 1,3-propane diol. The above diol has been found to improve adhesion between the metal layer and the polymeric film layer.
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