Packaging films containing coextruded polyester and nylon...

Details Packaging films containing coextruded polyester and nylon... Packaging films containing coextruded polyester and nylon...

B - Operations, Transporting

32

B

B32B 27/28 (2006.01) B32B 7/12 (2006.01) B32B 27/06 (2006.01) B32B 27/30 (2006.01) B32B 27/36 (2006.01) B65D 65/40 (2006.01)

Patent

CA 2498977

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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