| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vacuum heat insulating material excellent in handleability, heat insulating performance, and productivity, and to provide a thermal insulation box equipped with the vacuum heat insulating material. <P>SOLUTION: In the vacuum heat insulating material 1, a core material 3 is accommodated inside a gas barrier vessel 2 and the inside thereof is kept in a decompressed state. The core material 3 is structured with organic fiber assemblies 50, in which organic fibers 5 are formed in a sheet form and the organic fibers 5 are not thermally deposited with each other. These organic fibers 5 are continuous in the longitudinal direction. The core material 3 can be in a laminate structure of the organic fiber assemblies 50. The organic fibers 5 of the organic fiber assemblies 50 are made of either one of polyester, polystyrene, polypropylene, polylactic acid, aramid, and liquid crystal polymers. The thermal insulation box includes an outer box 10 and an inner box 11 arranged inside the outer box 10. The vacuum heat insulating material 1 is arranged in a gap between the outer box 10 and inner box 11. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
