Multilayer packaging film

Details Multilayer packaging film Multilayer packaging film

1989-07-07

1990-10-16

Sluby, P. C.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428516, 428520, 428910, 428349, 2641761, 426127, B32B 2708, B32B 2726, B32B 2730, B65D 6540

Patent

active

049634275

ABSTRACT:
This invention relates to a co-extruded multilayer film and particularly for vacuum packaging food products. The film comprises at least one layer formed by ethylene-vinyl acetate-copolymer with a vinyl acetate content preferably comprised between 9% and 26% range by weight. The film is preferably radiated at a lower level than 20 MRad. The film is adaped to resist high stretch ratios during the packaging process, so that packaging of bodies with projecting portions or cavities is possible, without breaking the film.

REFERENCES:
patent: 3741253 (1973-06-01), Brax et al.
patent: 4469742 (1984-09-01), Oberle et al.
patent: 4501780 (1985-02-01), Walters et al.

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