| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material which improves the working efficiency and the absorption efficiency. <P>SOLUTION: The vacuum heat insulating material is provided with: a core material 12 as a spacer; a sheet-like absorbent 13, having a sheet thickness t1 of 8 mm or less, which is made from synthetic zeolite calcinated at 400°C or higher; and a bag-like outer-wrap 11 which envelopes the core material 12 and the absorbent 13 to keep a vacuum inside. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
