Apparatus for enhancing extruded plolyethylene terephthalate (PET) film adhesion to a cellulosic substrate
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United States of America Patent
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Issued Date -
Sep 27, 2001
app pub date -
Apr 13, 2001
filing date -
Sep 13, 1999
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
This invention relates to an apparatus and method for enhancing extruded polyethylene terephthalate (PET) film adhesion to a cellulosic substrate. Such structures of this type, generally, use specialized primers which are applied in-line on the extruder such that the adhesion of PET to the cellulosic substrate can be greatly increased. This is accomplished by improvement of the chemical bond between the polymer film and substrate/primer.
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