Oxygen-scavenging filled polymer blend for food packaging applic

Details Oxygen-scavenging filled polymer blend for food packaging applic Oxygen-scavenging filled polymer blend for food packaging applic

1997-09-16

2000-03-14

Anthony, Joseph D.

Stock material or miscellaneous articles

Hollow or container type article

Paper containing

428 357, 4282927, 4284111, 25218828, B29D 2200, B32B 108, C01B 300

Patent

active

06037022&

ABSTRACT:
The specification discloses a polymer blend especially well-suited for coating paperboard substrates used in food packaging, particularly acidic or acid-generating foods such as fruit and vegetable juices. The blend contains an acid-activatable oxygen scavenger dispersed in a film-forming synthetic polymer such as an EVOH copolymer. When placed as a film or layer on the side of the substrate inside the container in contact with the food the blend is effective to reduce the oxygen in the container over time to a very low concentration, replacing the same with carbon dioxide, for an excellent preservative effect.

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