Laminate film having a heat-shrinkage rate greater than 15 perce

Details Laminate film having a heat-shrinkage rate greater than 15 perce Laminate film having a heat-shrinkage rate greater than 15 perce

1981-10-21

1984-06-26

McCamish, Marion

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428521, 428522, B32B 2708

Patent

active

044566468

ABSTRACT:
Described is a laminate film excellent in oil-resistance, heat-resistant sealing ability, peel resistance and gas-barriering property having a percentage of heat-shrinkage of larger than 15% at 90.degree. C. comprising a center layer consisting of a copolymer(I) of vinylidene chloride and both two outermost layers consisting of a mixture of 20 to 70% by weight of a copolymer(II) of ethylene and alpha-olefin of density of 0.900 to 0.950 and of crystalline melting point of 110.degree. to 125.degree. C. and 80 to 30% by weight of a copolymer(III) of ethylene and vinyl acetate with the proviso that the content of the copolymer(II) in the total amount of copolymers in both the two outermost layers is less than 65% by weight and showing a structure of having an adhesive layer between the center layer and the outermost layer.

REFERENCES:
patent: 3524795 (1970-08-01), Peterson
patent: 4096946 (1978-06-01), Cook et al.
patent: 4161562 (1979-07-01), Yoshikawa et al.
patent: 4278738 (1981-07-01), Brax
patent: 4352850 (1982-10-01), Yamamoto et al.
patent: 4357376 (1982-11-01), Nattinger et al.

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