| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material having improved heat insulating performance by using an exterior body with high gas barrier performance for keeping the inside in a vacuum condition for a long period while reducing heat bridge phenomena which lower the heat insulating effect with heat transfer through the exterior body. <P>SOLUTION: The vacuum heat insulating material 10 is evacuated by filling a heat insulating core material 12 in the obverse and reverse exterior body 11. The obverse and reverse exterior body has a laminated structure in which at least two barrier film layers are provided with multiple inorganic oxide vapor deposition film layers. Its barrier film is a GX film (a trade name) made by Toppan Printing Co., Ltd. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
