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    • 1. 发明授权
    • Retort-sterilizable laminated structure and process for preparation
thereof
    • 蒸煮消毒层压结构及其制备方法
    • US4310578A
    • 1982-01-12
    • US55004
    • 1979-07-05
    • Tadahiko KatsuraKenji SuzukiSenji Ito
    • Tadahiko KatsuraKenji SuzukiSenji Ito
    • B32B15/08
    • B32B15/08Y10T428/1338Y10T428/2826Y10T428/31681Y10T428/31692Y10T428/31913
    • 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.
    • 公开了一种包括铝箔或片材的蒸煮灭菌叠层结构,形成在铝箔或片材的一个表面上的可热封的结晶丙烯类树脂层和形成在铝箔的另一个表面上的耐热树脂层 或片材,其中铝箔或片材通过结晶度为15〜95%,羰基浓度为1〜600meq的改性烯烃树脂层与所述结晶丙烯类树脂层热熔接合 / 100g聚合物,其中大部分结构烯烃单元是丙烯单元,少数结构烯烃单元是乙烯单元。 作为改性烯烃聚合物,优选使用改性乙烯 - 丙烯共聚物或改性丙烯类聚合物与乙烯类聚合物的共混物。