Laminates useful as packaging materials and container having alk

Details Laminates useful as packaging materials and container having alk Laminates useful as packaging materials and container having alk

1976-06-10

1978-08-08

Ives, P. C.

Special receptacle or package

With specified material for container or content

Plural different lamina wall

428414, 428418, 428420, 428463, 428464, 428220, 428516, 428518, 428520, 156272, 260 23EP, 260 22TN, 229 35MF, 2065245, B32B 2738, B65D 8584

Patent

active

041051181

ABSTRACT:
Heat-sealable laminates useful as packaging materials, for example, for the packaging of photographic processing chemicals, are comprised of a metal foil, a thermoplastic polymeric film, and an interlayer formed by radiation curing of a composition comprising an acrylated epoxy resin. The laminates are manufactured by a process which comprises forming a sandwich comprising a layer of metal foil, a layer of thermoplastic polymer and an interlayer formed from a composition comprising an acrylated epoxy resin and irradiating the interlayer through the layer of thermoplastic polymer, for example by the use of ultraviolet radiation or high energy ionizing radiation, to cure the interlayer and bond it to both the layer of metal foil and the layer of thermoplastic polymer.

REFERENCES:
patent: 3056492 (1962-10-01), Campbell
patent: 3188265 (1965-06-01), Charbonneau
patent: 3188266 (1965-06-01), Charbonneau
patent: 3661576 (1972-05-01), Crary
patent: 3669825 (1972-06-01), Hall
patent: 3772062 (1973-11-01), Shur et al.
patent: 3906126 (1975-09-01), Kaiser et al.
Marans et al., J. Applied Polym. Sci., 1965, vol. 9, pp. 3661-3680.

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