Peelable vacuum skin packages
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United States of America Patent
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Dec 3, 2013
Grant Date -
Nov 30, 2006
app pub date -
May 31, 2005
filing date -
May 31, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention describes vacuum skin packages comprising a thermoplastic film and a polyester substrate wherein the thermoplastic film includes at least a first polymer layer having a first surface and an opposing second surface and comprises an ethylene/unsaturated ester copolymer, wherein the first surface has been surface treated in a manner to exhibit a surface tension of between 36-60 dynes/cm. The thermoplastic film is adapted to form a peelable seal between the first surface of the first polymer layer of the thermoplastic film and the polyester substrate by a pressure of less than 1×105 Pa applied therebetween, wherein the peelable seal has a seal strength of between 0.5-6 lb./in. (0.09-1.08 kg/cm).
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