| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material capable of reducing the increase of gas intrusion from a groove part and improving temporal heat insulating performance even when a deep groove is formed in the vacuum heat insulating material and folding is performed in the groove. <P>SOLUTION: This vacuum heat insulating material is provided with at least one or more groove part 10, and folded at the groove part 10 without being folded at a circumferential fin part 13 adjacent to the groove part 10, thus the stress to a laminate film generated at a groove end part, that is, a boundary between the groove part 10 and the circumferential fin part 13 can be reduced, an area of very small crack generated on the laminate film of the groove end part 11 can be minimized, and the temporal heat insulating performance can be improved in folding the vacuum heat insulating material. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
