Process for producing laminated film and laminated sheet

摘要

A process for producing an extrusion laminated film or sheet is disclosed, which process uses no chemical primer and comprises a plastic substrate and a resin for extrusion laminating which process uses no chemical primer and comprises: (B) melt-extruding a resin for extrusion laminating selected from polyethylene resins, polypropylene resins, ethylene-vinylester copolymer resins and ethylene-(metha)acrylate copolymer resins into a molten web at a temperature of from 180 DEG C to 340 DEG C and treating at least one surface of the molten web with ozone; and (C) contacting the substrate with the ozone-treated surface of the molten web obtained in step (B), and adhering the molten web onto the substrate under pressure.