Flexible film laminates and packaging

Details Flexible film laminates and packaging Flexible film laminates and packaging

1988-12-07

1990-09-11

Sluby, P. C.

Stock material or miscellaneous articles

Hollow or container type article

Nonself-supporting tubular film or bag

428 359, 428461, 428463, 428520, 428412, 4284244, 4284761, 428483, 426127, B29D 2200, B32B 108

Patent

active

049562100

ABSTRACT:
The present disclosure is directed to a flexible delamination-resistant structure especially adapted for use in food packaging, such as in the construction of a retortable pouch. The structure comprises at least two adjacent films, at least one of which is aluminum, having interposed therebetween, as an adhesive for said films, a partially hydrolyzed ethylene-vinyl acetate copolymer obtained from the hydrolysis of from about 60 percent to about 80 percent of the vinyl acetate groups of an ethylene-vinyl acetate copolymer containing from about 30 percent to about 60 percent by weight of interpolymerized vinyl acetate.

REFERENCES:
patent: 3616191 (1971-10-01), Fuerholzer et al.
patent: 3882259 (1975-05-01), Nohara et al.
patent: 4058647 (1977-11-01), Inoue et al.
patent: 4064296 (1977-12-01), Bornstein et al.
patent: 4143790 (1979-03-01), Ueno et al.
patent: 4308084 (1981-12-01), Ohtusuki et al.
patent: 4310578 (1982-01-01), Katsura et al.
patent: 4311742 (1982-01-01), Otsuka
patent: 4359499 (1982-11-01), Akao et al.
Ab, CA85(8): 47513q, JP50/37218, 12/1975, Mitsui Chem, "Adhesive Compositions for Thermoplastic Syn. Resin Laminates".

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