GAS BARRIER LAMINATED FILM FOR VACUUM HEAT INSULATING MATERIAL, AND VACUUM HEAT INSULATING MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material suitably used for household electrical appliances and houses.

SOLUTION: The vacuum heat insulting material has a core material vacuum-sealed with a gas barrier laminated film for the vacuum heat insulating material formed by laminating two gas barrier layers and a heat-fusible resin layer. At least one layer of the gas barrier layers is a gas barrier film formed by laminating silicon-containing vapor deposition films on both sides of a polyvinyl alcohol resin film in a thickness of 150-4,000Å, and providing each of the vapor deposition films with a gas barrier coating film comprising a predetermined gas barrier composition. The obtained vacuum heat insulating material excels in gas barrier property and heat insulting property.

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