| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material, which is manufactured in such a manner that a core material is arranged between the heat welded layers of facing materials opposed to each other and the heat welded layers of the facing materials are heat welded to each other by heating and pressurizing portions including the core material between the facing materials under depressurized conditions, thus improving the gas barrier property and pin hole resistance of a film face, maintaining good heat insulating performance for a long period and preventing vacuum breakage during manufacture/application to equipment. <P>SOLUTION: The lamination of the facing material on the vacuum heat insulating material 1 is constructed by using an aluminum metalized layer 5 and an ethylene-polyvinyl alcohol copolymer resin film 7 having a polyacrylic acid resin layer 6 on the metalized layer 5. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
