Stock material or miscellaneous articles – Hollow or container type article – Cellular material derived from plant or animal source
Patent
1979-07-05
1982-01-12
Lesmes, George F.
Stock material or miscellaneous articles
Hollow or container type article
Cellular material derived from plant or animal source
156334, 260 296HN, 428458, 428461, 428516, 428349, 426126, B65D 0000, B32B 1508
Patent
active
043105785
ABSTRACT:
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.
REFERENCES:
patent: 4031062 (1977-06-01), Shirayama
patent: 4096309 (1978-05-01), Stillman
Ito Senji
Katsura Tadahiko
Suzuki Kenji
Buffalow E. Rollins
Lesmes George F.
Toyo Seikan Kaisha Limited
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