| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material which can maintain good insulation over a long period of time. <P>SOLUTION: The vacuum heat insulating material 10 is composed of a core material 12 as a spacer and a baglike outer casing 11. The outer casing 11 contains the core material 12 therein, and the inside of the outer casing is kept in vacuum. In this case, the outer casing 11 has a first laminated film 21 formed by laminating a plurality of filmy members. The first laminated film 21 has a first gas barrier layer 21b obtained by coating polyvinyl chloride resin on a surface formed by depositing aluminum on a base composed of ethylene-vinylalcohol copolymer. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
