| 摘要 |
PURPOSE: To provide an insulating box having a high insulating properties and a refrigerator which uses the highly insulating box. CONSTITUTION: This invention relates to a insulating box body and a refrigerator or a freezer which uses the insulating box wherein the insulating box is formed with a plurality of vacuum insulating materials 1 installed vertically between two walls in the insulating direction. The insulating box is filled up with a vacuum insulating material 1 which is sealed with a core material having a clearance in a communicating structure filled up in a vessel and deaerated inside to be pressure of at least 300Pa between the two walls and a hard polyurethane foam 2 foamed and produced under the presence of a polyol component, an isocyanate component, a reaction catalyst, a foam regulating agent, a foaming agent and a core material having a clearance in a communicating structure. |
