| 摘要 |
PROBLEM TO BE SOLVED: To provide a barrier film which has excellent adhesiveness between a polyamide resin film and an organic-containing silicon oxide layer, which excels in the gas barrier property to block the permeation of oxygen gas, water vapor and the like, which especially shows less deterioration of the gas barrier property even against the heat processing such as heat sterilization treatment of retort/boiling and the like, and which is excellent in transparency, and to provide a laminated material using it. SOLUTION: In order to compose the barrier film, an organic-containing silicon oxide layer 2 is provided on one surface of a biaxially oriented polyamide resin film 1 and further on the organic-containing silicon oxide layer there is provided a gas barrier coating film 3 of a gas barrier composition which contains at least one alkoxide represented by the general formula: R<SP>1</SP><SB>n</SB>M(OR<SP>2</SP>)<SB>m</SB>(wherein the meanings of R<SP>1</SP>, R<SP>2</SP>, M, n and m are omitted) and a polyvinyl alcohol resin and/or an ethylene/vinyl alcohol copolymer and is obtained by polycondensation by a sol-gel method. COPYRIGHT: (C)2007,JPO&INPIT
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