| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method of a polypropylene laminate having no fluctuation in thickness and excellent in film bonding strength, and the polypropylene laminate manufactured thereby. SOLUTION: In the manufacturing method of the polypropylene laminate composed of a stretched polypropylene base material layer and a layer comprising a resin for extrusion lamination containing a polyethylene resin and a polypropylene resin, surface activation treatment is applied at least to one side of the polypropylene base material without using an anchor coat layer and the resin for extrusion lamination is melted so that the melting temperature just under a die is set to 180-340°C to be extruded in a film-like state from the die. Then, ozone treatment is applied at least to one side of the extruded film to bond the surface of the polypropylene base material to which surface activation treatment is applied and the surface of the film to which ozone treatment is applied. COPYRIGHT: (C)2005,JPO&NCIPI |
