Packaging laminate

Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond

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Details

426126, 428209, 428213, 428343, 428344, 428347, 428913, B32B 710, B32B 1502

Patent

active

042140293

ABSTRACT:
A unitary packaging laminate comprising a foil substrate, a polypropylene outer layer, an intermediate layer of polyethylene or ethylene-acrylic acid copolymer located between and adhered to said substrate and said outer layer, a printed adhesive pattern of low temperature heat sealable material on the exterior surface of said outer layer, and a coating of low temperature heat sealable material on the inner surface of said substrate.

REFERENCES:
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patent: 2185470 (1940-01-01), MacDonald et al.
patent: 3503831 (1970-03-01), Oyama
patent: 3582452 (1971-06-01), Britton
patent: 3770122 (1973-11-01), Thiele
patent: 3785911 (1974-01-01), Ungar et al.
patent: 4009312 (1977-02-01), Hayashi et al.
patent: 4045607 (1977-08-01), Swearingen et al.
patent: 4058632 (1977-11-01), Evans et al.
patent: 4101698 (1978-07-01), Dunning et al.

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