| abstract |
(57) [Abstract] [Purpose] The adhesion between the silicon oxide thin film and the resin layer is strong, the amount of organic solvent used is small at the time of production, and the temperature of 250 ° C or less is required for production by extrusion lamination. An object of the present invention is to obtain a laminated film which can be produced and has a good barrier property, and a production method thereof. [Structure] On a silicon oxide thin film of a plastic film having a silicon oxide thin film on at least one side, a thin layer of a silane coupling agent having an amino group at a terminal is interposed, A laminated film in which resin layers having an acid anhydride group are laminated. [Effect] A laminated film having strong adhesion between layers, good barrier property, and less likely to be cracked by bending or heat shrinkage was obtained. |