TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: The multilayer film further has inorganic oxide layer formed on one side or both sides of the base material. The resin layer further contains additives chosen from pigment, filler, ultraviolet stabilizer, thermal stabilizer and barrier particles.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: The polymer-containing oxazoline group contains oxazoline group-containing monomer, homopolymer of oxazoline group-containing monomer and/or comonomer. The comonomer in the polymer-containing oxazoline group is chosen from alkyl(meth)acrylate, amide group-containing monomer, unsaturated nitrile-based monomer, vinyl ester monomer, vinyl ether monomer, halogen-containing alpha , beta -unsaturated monomer and alpha , beta -unsaturated aromatic monomer. The alkyl(meth)acrylate is chosen from 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 fluoropolymer contains monomer chosen from vinylidene fluoride, vinyl fluoride, tetrafluoroethylene, hexafluoropropylene, chlorotrifluoroethylene, trifluoroethylene, hexafluoroisobutylene, perfluorobutylethyene, perfluoromethyl vinyl ether, perfluoroethyl vinyl ether, perfluoropropyl vinyl ether, perfluorohexyl vinyl ether, perfluoro-2,2-dimethyl-1,3-dioxole and perfluoro-2-methylene-4-methyl-1,3-dioxolan. The oxazoline group-containing monomer is chosen from 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 2-isopropenyl-5-ethyl-2-oxazoline.    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The base material is metallic film or polymer film chosen from acrylic film, polyolefin film, polyamide film, polyurethane film, polyethylene terephthalate film, polyethylene naphthalate film and polybutylene terephthalate film. The content of the polymer-containing oxazoline group in the primer layer is 5-100 pts. wt. with respect to 100 pts. wt. fluoropolymer in the primer layer. Preferred Properties: The thickness of the base material, primer layer and resin layer is 50-500 mu m, 10 nm or more and 3-50 mu m, respectively. The weight average molecular weight of the polymer-containing oxazoline group and fluoropolymer is 50-5000 and 50000-1000000, respectively.