Solvent Free Polyurethane Laminating Adhesive With High Oxygen Transfer Rate
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United States of America Patent
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Issued Date -
Apr 17, 2014
app pub date -
Aug 22, 2013
filing date -
Aug 24, 2012
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Abstract
A solventless two component laminating adhesive comprising a Part A prepolymer and a Part B curative. The prepolymer comprises a lower molecular weight polyether polyol and a higher molecular weight polyether polyol. The laminating adhesive can be applied to flexible films with high oxygen transfer rate to form flexible packaging, particularly for fresh produce, such as pre-prepared salads and other green leaf products.
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