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US 4,360,551 AGranted
Flexible film laminate especially adapted for use in the construction of a retortable food pouch
AssigneeMobil Oil Corporation
InventorsJohn P. Guarino, Frederick C. Schwab
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Abstract
A flexible film laminate especially adapted for use in the manufacture of a retortable pouch for the packaging of food is disclosed which comprises: (a) a first layer of heat-sealable polyolefin; (b) a second layer of previously metallized thermoplastic polymer bonded to said first layer; and, (c) an adhesive bonding the first layer to the metallized surface of the second layer, said adhesive being a maleic acid anhydride adduct of ethylene-propylene copolymer.
Claims28
A flexible film laminate which comprises:
- (a) a first layer of heat-sealable polyolefin;
- (b) a second layer of previously metallized thermoplastic polyacrylonitrile polymer bonded to said first layer;
- and,
- (c) an adhesive bonding the first layer to the metallized surface of the second layer, said adhesive being a maleic acid anhydride adduct of ethylene-propylene copolymer.
1 more element
A retortable food pouch fabricated from a flexible film laminate which comprises:
- (a) a first layer of heat-sealable polyolefin;
- (b) a second layer of previously metallized thermoplastic polyacrylonitrile polymer bonded to said first layer;
- and,
- (c) an adhesive bonding the first layer to the metallized surface of the second layer, said adhesive being a maleic acid anhydride adduct of ethylene-propylene copolymer.
1 more element
Dependencies are inferred from the claim text.