Stock material or miscellaneous articles – Composite – Of polyamide
Reexamination Certificate
2007-04-10
2007-04-10
Hightower, P. Hampton (Department: 1711)
Stock material or miscellaneous articles
Composite
Of polyamide
C528S480000, C528S483000, C528S483000, C528S483000, C528S483000
Reexamination Certificate
active
10795567
ABSTRACT:
Multilayer coextruded thermoformable structures for packaging film applications. The multilayer structures having at least a first layer comprising polyethylene terephthalate, a second layer of a first adhesive comprising a blend of at least an acrylate-based resin and either a modified polyolefin or a modified acrylate-based resin; a third layer of a thermoplastic oxygen barrier. The thermoplastic oxygen barrier may comprise ethylene/vinyl alcohol copolymer (EVOH), polyvinylidene chloride, or polyamide, preferably, a polyamide blend containing between 1–29% amorphous polyamide. The present invention may further comprise at least 5–7 thermoplastic layers.
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Curwood Inc.
Hall Tom J.
Hampton Hightower P.
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