Freezable/microwaveable packaging films
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United States of America Patent
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Apr 5, 2011
Grant Date -
Sep 20, 2007
app pub date -
Mar 14, 2006
filing date -
Mar 14, 2006
priority date (Note) -
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Abstract
A multi-layer freezable/microwaveable film having both low temperature resistance and high temperature resistant to withstand subzero freezer storage temperatures and microwave cooking temperatures. The freezable/microwaveable film includes a three-layer coextruded film having a polypropylene/alpha-olefin copolymer inner, heat sealable layer, an adjacent polypropylene or high density polyethylene core layer, and an outer polyethylene skin layer adjacent the core layer opposite the heat sealable layer, and further includes an outer protective layer laminated to the outer skin layer.
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