| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve insufficiency when a vacuum heat insulating material near 150°C is desired to improve in a method for adding a radiation restraining material in a core material for restraining radiation heats, because a cause of radiation heat, namely a infrared wavelength is absorbed in an outer covering on the surface of the vacuum heat insulating material as heats, and infrared waves permeating and reaching to the core material are very small. <P>SOLUTION: A coating membrane 4 restraining infrared waves is formed on an outer surface of an outer covering 3 of a vacuum heat insulating material 1, so that the vacuum heat insulating material 1 expressing an excellent heat insulating performance is provided in a temperature area of 150°C or more. Especially, when heats are insulated and kept by applying the vacuum heat insulating material 1, it is effective to arrange a face with the coating membrane 4 toward a high temperature side. Also, heat resistance and fire-resistance are provided to a laminate material of the outer covering 3, so as to maintain the heat insulating performance during a long period even in the high temperature area of 150°C or more, and secure safety of products. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
