TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The inorganic layer contains a zinc compound and a silicon oxide. The inorganic layers has layer (B1) which consists of coexistence phase of zinc oxide-silicon dioxide-aluminum oxide, or layer (B2) which consists of a coexistence phase of zinc sulfide and silicon dioxide. The inorganic layer is layer (B1) containing 20-40 atomic% zinc, silicon 5-20 atomic%, aluminum 0.5-5 atomic% and oxygen 35-70 atomic%, measured by inductively coupled plasma atomic emission spectrochemical analysis. The molar ration of zinc sulfide and zinc sulfide with respect to sum total of silicon dioxide is 0.7-0.9. Preferred Properties: The thickness of inorganic layer is 10-1000 nm. The surface roughness of inorganic layer is 2 nm or less.    TECHNOLOGY FOCUS - POLYMERS - Preferred Process: The acrylic resin having structure is obtained by copolymerizing acryl-type monomer chosen from macromonomer having radical polymerizable group in mono-terminal of acrylic polymer, macromonomer having radical polymerizable group in mono-terminal of polymer having dimethylsiloxane skeleton and macromonomer having radical polymerizable group in mono-terminal of polymer which has fluorine atom. Preferred Composition: The side chain preferably contains side chain having dimethylsiloxane skeleton, and/or side chain having skeleton containing a fluorine atom. The macromonomer preferably contains macromonomer having radical polymerizable group in mono-terminal of polymer having dimethylsiloxane skeleton and macromonomer having radical polymerizable group in mono-terminal of polymer which has fluorine atom. The content of macromonomer in acrylic resin with respect to 100 pts. mass of acryl-type monomers is 3-8 pts. mass. The acrylic resin contains 3-8 pts. mass macromonomer, 1-8 %mass methacrylic acid, 5-16 %mass methacrylic acid 2-hydroxyethyl methyl methacrylate and/or 76-94 %mass methacrylic acid dicyclopentanyl. Preferred Property: The gas-barrier film has 10-25 mN/m of surface free energies of the undercoat layer.