| 摘要 |
<p>PURPOSE: To provide a method for manufacturing a heat insulating material in which an internally vacuum exhausted heat insulating material can be manufactured without using a vacuum furnace. CONSTITUTION: In the manufacture of a heat insulating material 1 which is formed by inserting a core material 2 into a vessel 4 excellent in gas impermeability and moisture impermeability, and then internally vacuum exhausting the vessel 4, an oxygen adsorptive material is filled in the vessel 4 to which the core material 2 is inserted, and the vessel 4 is sealed after the gas in the vessel 4 is substituted by oxygen, whereby the vessel 4 inner part is laid in the vacuum exhausted state.</p> |
