| 摘要 |
<p>PURPOSE:To provide a heat insulating body used for the heat insulation of a refrigerator, prefabricated refrigerating cabinet, etc., and having a high heat insulating effect which is not lowered for a long period. CONSTITUTION:An adsorbing agent 2 uses activated charcoal for an organic gas adsorbing substance, metallic hydroxide for a carbonic acid gas adsorbing substance and metallic chloride, metallic sulfide or metallic oxide for a moisture adsorbing substance to be integrally molded without adding a binder to the pellet-like, or granular substances. The adsorbing agent 2 is disposed in contact with foamed plastics 1 and sealingly covered with a film 5 consisting of an infrared ray reflecting film-plastic film-metallic foil layer-heat adhesive film. Pressure in the film 5 is reduced to constitute a heat insulating body. Since the adsorbing agent 2 does not use a reinforcing material like the binder, it has a large surface area and adsorbing capacity to fixedly adsorb a volatile matter generated from the heat insulating body for preventing the reduction of the heat insulating property. Thus, the heat insulating body can be provided which does not lower the heat insulating property for a long period.</p> |
