TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: The inorganic oxide layer is formed on base. Preferred Properties: The thickness of base is 50-500 mu m. The thickness of primer layer is 10-10000 nm.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The oxazoline group containing monomer is 2-vinyl-2-oxazoline, 2-vinyl-4-methyl-2-oxazoline, 2-vinyl-5-methyl-2-oxazoline, 2-isopropenyl-2-oxazoline, 2-isopropenyl-4-methyl-2-oxazoline and/or 2-isopropenyl-5-ethyl-2-oxazoline. The total content of comonomer or copolymer of oxazoline group-containing monomer is 1 weight% or more or 5-95 weight%. The comonomer contained in the copolymer is alkyl (meth)acrylate, amide-based monomer, nitrile-based unsaturated monomer, vinyl ester-based monomer, vinyl ether-based monomer, halogen-containing alpha , beta -unsaturated monomer and alpha , beta -unsaturated aromatic monomer. The alkyl(meth)acrylate is methyl(meth)acrylate, ethyl(meth)acrylate, propyl(meth)acrylate, n-butyl(meth)acrylate, s-butyl(meth)acrylate, t-butyl(meth)acrylate, isobutyl(meth)acrylate, hexyl(meth)acrylate, 2-ethylhexyl(meth)acrylate, N-octyl(meth)acrylate, isooctyl(meth)acrylate, n-nonyl(meth)acrylate, isononyl(meth)acrylate, n-decyl(meth)acrylate, isodecyl(meth)acrylate, n-dodecyl(meth)acrylate, n-tridecyl(meth)acrylate and n-tetradecyl(meth)acrylate. The fluorine-based polymer is vinylidene fluoride, vinyl fluoride, tetrafluoroethylene, hexafluoropropylene, chlorotrifluoroethylene, trifluoroethylene, hexafluoroisobutylene, perfluorobutylethylene, perfluoromethylvinylether, perfluoroethyl vinyl ether, perfluoropropylvinylether, perfluorohexyl vinyl ether, perfluoro-2,2-dimethyl-1,3-dioxole and perfluoro-2-methylene-4-methyl-1,3-dioxolan. The content of comonomer contained in the fluorine-based copolymer is 0.5-50 weight%. The solvent is acetone, methyl ethyl ketone, dimethylformamide and/or dimethylacetamide. The oxazoline group containing monomer is nitrogen-containing compound of formula (I).R1-R4=H, alkyl, halo, optionally substituted phenyl;andR5=acyclic hydrocarbyl having unsaturated bond.Preferred Property: The solvent used during manufacture of multilayer film has boiling point of 200 degrees C or less.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The base is metallic film or macromolecular film. The macromolecular film is acrylic film, polyolefin film, polyamide film, polyurea film, polyethylene terephthalate film, polyethylene naphthalate film and/or polybutylene terephthalate film. The polymer containing oxazoline group is copolymer or homopolymer of oxazoline group containing monomer and/or comonomer of oxazoline group containing monomer. The resin layer further contains additive, pigment, filler, UV stabilizer, thermal stabilizer and barrier particles. Preferred Properties: The weight average molecular weight of oxazoline group containing polymer is 50-5000. The fluorine-based polymer has weight average molecular weight of 5-100 and melting point of 80-175 degrees C. The thickness of resin layer is 3-50 mu m.