Barrier structure for food packages

Details Barrier structure for food packages Barrier structure for food packages

1988-10-19

1990-12-11

Sluby, P. C.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 366, 428 343, 428412, 428483, 428516, 428520, 428 2, 426127, 229 31, 229 35R, 264513, 264515, B65D 6538, B65D 1522, B32B 102, B32B 2706

Patent

active

049770047

ABSTRACT:
A barrier structure liner for food packages comprises two layers of EVOH (ethylene-vinly alcohol copolymers), one of which is interposed between two moisture barriers. The inner layer of EVOH (in contact with the packaged food) functions as a solvent barrier which reduces the loss of flavor components from the foods, while the buried EVOH layer, protected from moisture from the packaged food and the outside atmosphere, serves as an oxygen barrier to prevent oxygen from outside the package from oxidizing the foods within the container. The barrier structure may be used in paper cartons, plastic bottles, bags and the like.

REFERENCES:
patent: 4064296 (1977-12-01), Bornstein
patent: 4701360 (1987-10-01), Gibbons et al.
patent: 4894267 (1990-01-01), Bettle, III et al.

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