Process for preparing laminates

Details Process for preparing laminates Process for preparing laminates

1981-07-10

1983-06-21

Gallagher, John J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

15624416, 15624422, 15624424, 15624427, 156277, 1563066, 156327, 156334, 229 35MF, 426126, 428416, 4284258, 428461, B65D 3700

Patent

active

043894380

ABSTRACT:
A process for the preparation of laminates comprising the steps of (1) putting a thermoplastic resin sheet or film and a metal foil or sheet one upon another with a specific polyolefin type resin being interposed therebetween, (2) heating the thus interposed specific polyolefin type resin to a temperature not lower than the melting point of the specific polyolefin type resin to obtain an intermediate laminate and (3) laminating at least one of thermoplastic sheets or films and paper on the metal foil or sheet side of said intermediate laminate using therebetween an ordinary adhesive not requiring heating at a temperature not lower than said melting point at the time of lamination thereby to obtain a desired laminate. In one embodiment, this invention also relates to a foodstuff packaging container wherein the innermost layer is a polyolefin resin sheet or film.

REFERENCES:
patent: 3462329 (1969-08-01), Beyer
patent: 3846383 (1974-11-01), Uyama et al.
patent: 4190477 (1980-02-01), Ossian et al.
patent: 4310578 (1982-01-01), Katsura et al.

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