Laminated packaging film having low vapor and gas permeability

Details Laminated packaging film having low vapor and gas permeability Laminated packaging film having low vapor and gas permeability

1974-06-03

1976-01-13

Lesmes, George F.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428520, 428522, 428212, 426127, 426129, 206 46, B32B 2708

Patent

active

039326934

ABSTRACT:
A laminated film suitable as a food packaging film comprised of a base layer of an oriented polypropylene film, a layer of a vinylidene chloride polymer adhered to one surface of the base layer, a layer of first ethylene/vinyl acetate copolymer having a vinyl acetate content greater than 10 percent by weight adhered to the vinylidene chloride polymer layer and a top layer of a second ethylene/vinyl acetate copolymer having a vinyl acetate content less than 10 percent adhered to the first ethylene/vinyl acetate copolymer layer.

REFERENCES:
patent: 3524795 (1970-08-01), Peterson
patent: 3558330 (1971-01-01), Widiger et al.
patent: 3579416 (1971-05-01), Schrenk
patent: 3741253 (1973-06-01), Brax
patent: 3767523 (1973-10-01), Schwarz
patent: 3804705 (1974-04-01), Kishikawa

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