Polymer films and methods of producing and using such films
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United States of America Patent
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app pub date -
Sep 15, 2006
filing date -
Oct 12, 2005
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Abstract
Multi-layer films particularly suited for packaging applications, including a core layer, a tie layer made from at least 10 wt % of a first polymer and a service layer, wherein the tie layer is a sealable layer and may provide a hermetic seal when sealed to itself. The films of this invention may be suitable for use in preparing hermetically sealed packages. Optionally, the multi-layer film may have a skin layer and/or a second skin layer. Embodiments may have the advantage of improved seal strength, hermeticity, hot tack, reduced-temperature sealability, and improved packaging machine operating speed.
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