abstract |
The present invention relates to a method for producing a polyimide film, comprising steps of: napplying a polyamic acid solution composition, which comprises at least one solvent selected from the group consisting of N-methylformamide, N,N-dimethylpropionamide, N,N-dimethylisobutylamide and tetramethylurea, and a polyamic acid, to a substrate; and then nimidizing the polyamic acid by subjecting the composition to heat treatment, to obtain the polyimide film. |