Heat activated adhesives for bag closures
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United States of America Patent
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Mar 17, 2015
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N/A
app pub date -
Aug 9, 2012
filing date -
Dec 22, 2008
priority date (Note) -
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Abstract
A polymeric woven bag has a first panel and a second panel and an open end of the bag to be pinched closed. A first layer of heat activated adhesive material is on a portion of the bag to form an adhesive-to-adhesive seal by contact with a second layer of heat activated adhesive material on a portion of the bag, wherein a chemical family of the adhesive layers comprises polyolefin thermoplastic components, and wherein the first adhesive layer and the second adhesive layer have respective heat activation temperatures below the softening point temperature of the polymeric bag material.
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