MULTILAYERED LAMINATED FILM, LAMINATED MATERIAL USING IT AND PACKAGING BAG

摘要

PROBLEM TO BE SOLVED: To provide a multilayered laminated film excellent in heat sealability and having hermetic sealing properties, a laminated material using it and a packaging bag. SOLUTION: The multilayered laminated film comprises a coextrusion multilayered laminated film having both of heat sealability and easy peel properties and the first layer thereof comprises a resin film comprising a resin composition which contains a high-pressure polymerization low density polyethylene resin with a melt flow rate (MFR) of 1-7 g/10 min (190°C) and a polypropylene resin with a melt flow rate (MFR) of 15-30 g/10 min (230°C) while the second layer thereof comprises at least one resin film comprising a resin composition containing an ethylene/α-olefin copolymer polymerized using a single site catalyst and high density polyethylene with a density of 0.935 g/m3or above or a polypropylene resin. The laminated material using it and the packaging bag are also disclosed. COPYRIGHT: (C)2006,JPO&NCIPI