To obtain a vacuum heat insulation material which is excellent in heat insulation performance and strong in strength while aiming at effective use of resources.
The vacuum heat insulation material 50 makes a jacket material 1 contain a core material 2 and carries out its decompression sealing. The core material 2 keeps a material of pulverized waste core material which consists of inorganic fiber aggregate hot-pressed together with a bonding agent by new material inorganic fiber aggregates 7 of two or more sheets to get fibers oriented with a sheeted waste material inorganic fiber assembly 6 clamped into a laminate. The core material 2 is made up of a laminate where these laminated inorganic fiber aggregates 7, 6 are hot-pressed and combined with a bonding agent.
| JP2006105314 | HEAT INSULATING PANEL |
| JPH08114296 | HEAT INSULATED BOX BODY |
| JP2008215197 | HEAT RETAINING TANK |
ARAKI KUNINARI
FUKUDA KATSUMI
| JP2004060794A | 2004-02-26 | |||
| JP2003156193A | 2003-05-30 |
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