| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a composite heat insulating material using a vacuum heat insulating material which maintains performance with less deformation, even in the condition where a static external force is kept applied to the vacuum heat insulating material for the long term, by increasing the strength of a core material. <P>SOLUTION: The core material 105 of the vacuum heat insulating material 102 is made of glass with high Young's modulus, so that the strength of the core material 105 is increased. Being made using the high-strength core material 105, the vacuum heat insulating material 102 is not deformed even when subjected to the static external force owing to the atmospheric pressure or a foamed resin so as to maintain the performance, so that even the composite heat insulating material 101 in which the vacuum heat insulating material 102 is embedded in the foamed resin heat insulating material 103, prevents the deterioration of performance. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
