Process for the manufacture of an Al/plastic laminate foil and t

Details Process for the manufacture of an Al/plastic laminate foil and t Process for the manufacture of an Al/plastic laminate foil and t

1977-06-08

1979-10-30

Kittle, John E.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

156332, 156196, 156331, 426126, 426127, 428339, 428424, 428458, 428335, 428332, B32B 2708, B65D 3102, B32B 1508, B65D 128

Patent

active

041729145

ABSTRACT:
A process for the manufacture of an Al/plastic laminate foil is described. The laminate comprises an aluminum foil with plastic foil stuck on to at least one of its sides whereby the plastic foils exhibits an elongation at fraction of 80-100% and the adhesive joining the components achieves a shear strength of at least 0.3 N/mm.sup.2. The plastic foils bear a greater part of the applied load when the laminate foil is stressed. The laminate foil is suitable for the manufacture of containers by deep drawing whereby no cracks or macropores form in the Al foil. The laminate effectively excludes light, water vapor and aromas from external sources and prevents the loss of aroma from the contents of such containers.

REFERENCES:
patent: 3136468 (1964-06-01), Keller
patent: 3556816 (1971-01-01), Nughes
patent: 3572499 (1971-03-01), Mondane
patent: 3616190 (1971-10-01), Shaw
patent: 3658562 (1972-04-01), Wilson
patent: 3949114 (1976-04-01), Viola et al.
patent: 4009312 (1977-02-01), Hayashi et al.
"Aluminium", vol. 45, No. 5, May 1969, p. 284.

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