Composite sheet having improved adhesive properties and methods of making same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Sep 16, 1997
Grant Date -
N/A
app pub date -
Sep 25, 1995
filing date -
Apr 30, 1993
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A composite sheet has a substrate layer, a coating layer and a flexible adhesive layer. The substrate layer is preferably a polyester film. The coating layer contains a layer mineral. The flexible adherent layer has a percentage elongation to break of greater that 150%. The composite sheet exhibits oxygen barrier properties and is suitable for use as a packaging film, particularly when laminated to a heat-sealable layer.
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