VACUUM HEAT INSULATING BODY, AND HEAT INSULATING CONTAINER AND HEAT INSULATING WALL EMPLOYING SAME

摘要

A vacuum heat insulating body is provided with a core member (5), and an outer packaging member for vacuum sealing of the core member (5). The core member (5) has a first heat insulating core member (11) and a second heat insulating core member (12) that are air permeable. Furthermore, the first heat insulating core member (11) has a greater air resistance than the second heat insulating core member (12). The first heat insulating core member (11) is configured from an interconnected-cell resin, whereas the second heat insulating core member (12) is configured from a fiber material or powder material having smaller air resistance than the interconnected-cell resin.