| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a thin vacuum heat insulation material with improved planarity in an adsorbent placement part. <P>SOLUTION: The vacuum heat insulation material 1 is composed of at least a core material 4, an adsorbent 3, and a covering material 5 having a gas barrier characteristic and covering the core material 4 and the adsorbent 3, and it is comprised by decompressing an interior of the covering material 5. Since, in the adsorbent 3, a packing material 7 serves to maintain a shape of a pressed body 9 as an outer shell of the pressed body 9 by housing the pressed body 9 of granular adsorbents 8 in the packing material 7 having gas permeability, and insertion into the covering material 5 can be carried out while retaining planarity of the pressed body 9 of the hard-to-handle granular adsorbents 8, the planarity of the vacuum heat insulation material 1 can be secured. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
