Flexible heat-shrinkable multilayer film for packaging primal me

Details Flexible heat-shrinkable multilayer film for packaging primal me Flexible heat-shrinkable multilayer film for packaging primal me

1978-03-29

1980-06-10

Ives, P. C.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

428216, 428517, 428518, 428910, 426129, B65D 2506, B32B 2708

Patent

active

042073634

ABSTRACT:
A heat-shrinkable multilayer film suitable for use in the packaging of primal meat cut, includes a first outer layer comprising a blend of a propylene-ethylene copolymer, a (butene-1)-ethylene copolymer, and a thermoplastic elastomer selected from the group consisting of ethylene-propylene copolymers and ethylene-propylene diene terpolymers; a first core layer connected to the first outer layer and being capable of being stretched during the biaxial orientation of the multilayer film and comprising an extrudable adhesive; a second core layer connected to the first core layer and serving as an oxygen barrier to protect the meat cut from spoilage and being compatible to the biaxial orienting and heat shrinking of the film; and a second outer layer comprising an ethylene vinyl acetate copolymer; the multilayer film being biaxially oriented.

REFERENCES:
patent: 3634552 (1972-01-01), Foglia
patent: 3634553 (1972-01-01), Foglia
patent: 3673050 (1972-06-01), Newman, Jr. et al.
patent: 3741253 (1973-06-01), Brax et al.
patent: 3900635 (1975-08-01), Funderburk et al.
patent: 4078020 (1978-03-01), Rose et al.

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