Heat shrinkable multi-layered laminate film

Details Heat shrinkable multi-layered laminate film Heat shrinkable multi-layered laminate film

1983-02-04

1985-01-22

Ives, Patricia C.

Stock material or miscellaneous articles

Composite

Of addition polymer from unsaturated monomers

428520, 428913, 428522, 215 1C, 426129, B32B 2730, B32B 2732

Patent

active

044952490

ABSTRACT:
Disclosed herein is a heat-shrinkable multi-layered laminate film comprising a core layer made of a saponified copolymer of ethylene and vinyl acetate, two outer layers made of a mixture of a copolymer of ethylene and vinyl acetate having a crystal melting point of 85.degree. to 103.degree. C. and a copolymer of propylene and ethylene having a crystal melting point of 126.degree. to 155.degree. C. or a linear low-density polyethylene having a crystal melting point of 110.degree. to 125.degree. C. and two adhesive layers disposed between the core layer and the two outer layers, the multi-layered laminate film being excellent in gas-barrier property, oil resistance and peel-resistance of the sealed parts in the heat shrinkage and suitable for heat-shrinking packaging of foodstuffs, particularly for vacuum heat-packaging of foodstuffs.

REFERENCES:
patent: 4058647 (1977-11-01), Inoue et al.
patent: 4064296 (1977-12-01), Bornstein et al.
patent: 4182457 (1980-01-01), Yamada et al.
patent: 4217161 (1980-08-01), Yamada et al.
patent: 4228215 (1980-10-01), Hein et al.
patent: 4281045 (1981-07-01), Sumi et al.
patent: 4424243 (1984-01-01), Nishimoto et al.
Japanese Patent Appl. No. 49-76843.

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