LAMINATED FILM OF HIGH BARRIER FILM, AND ITS USAGE FOR VACUUM INSULATING PANEL

摘要

PROBLEM TO BE SOLVED: To provide a laminated film having an excellent gas barrier effect without using a heat-conductive metal foil, and the using method of the laminated film for a vacuum insulating panel. SOLUTION: This multi-layer laminated film has at least four layers (I) to (IV) which are directly or indirectly arranged in the following order. In this case, the layer (I) is one surface layer which is constituted by containing at least one vapor-coated layer with a metal oxide selected from aluminum, or SiOx, or main groups 2 or 3. Then, the vapor-coated surface is adjacent to the next layer. The layer (II) is a gas-shielding layer comprising a resin. The layer (III) has at least another vapor-coated layer with a metal oxide selected from aluminum, or SiOx, or main groups 2 or 3. The layer (IV) is a heat-sealing layer, and is the other surface layer of the laminated film. The laminated film is sued for the vacuum insulating panel.