| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide vacuum heat insulation material capable of eliminating usage of a plurality layers of gas barrier films thicker than a usual gas barrier film for preventing breakage such as pin holes caused in a gas barrier bag because glass wool is glass, which is a hard substance itself when the glass wool is used for a core material. <P>SOLUTION: In this vacuum heat insulation material in which the core material (1) jointed by a binder and made by glass material is put in the gas barrier bag (3) having a gas barrier ability and an opening portion of the gas barrier bag (3) is sealed after evacuating, the core material (1) is put in a non-sealed pack (2) made by a synthetic resin film, and the pack (2) and the core material (1) are put in the gas barrier back (3) for evacuating. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
