Retort-sterilizable laminated structure and process for...

Details Retort-sterilizable laminated structure and process for... Retort-sterilizable laminated structure and process for...

B - Operations, Transporting

32

B

154/92.1

B32B 15/08 (2006.01) B65D 30/02 (2006.01)

Patent

CA 1130715

ABSTRACT OF THE DISCLOSURE Disclosed is a retort-sterilizable laminated structure comprising an aluminum foil or sheet, a heat-sealable crystalline propylene type resin layer formed on one surface of the aluminum foil or sheet and a heat-resistant resin layer formed on the other surface of the aluminum foil or sheet, wherein the aluminum foil or sheet is heat-fusion-bonded to said crystalline propylene type resin layer through a layer of a modified olefin resin having a degree of crystallization of 15 to 95% and a carbonyl group concentration of 1 to 600 meq/100 g of the polymer, in which the majority of the structural olefin units are propylene units and the minority of the structural olefin units are ethylene units. As the modified olefin polymer, a modified ethylene-propylene copolymer or a blend of a modified propylene type polymer with an ethylene type polymer is preferably employed.

331245

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