VACUUM HEAT INSULATING MATERIAL, HEAT-RETAINING AND COLD-KEEPING APPARATUS EQUIPPED WITH VACUUM INSULATING MATERIAL, AND HEAT INSULATING BOARD

摘要

PROBLEM TO BE SOLVED: To provide a high performance vacuum heat insulating material applying glass fiber shaped body not using bonding agent in a core material to reduce heat conduction of core material solid composition in the core material for vacuum heat insulation for reducing heat conductivity of the vacuum heat insulating material and improving deterioration of heat insulating performance with time.;SOLUTION: This vacuum heat insulating material 1 consists of a board shape core material 2 and outer wrapping material 3 of plastic laminate film covering the core material 2 and an inside thereof is decompressed and sealed. The board shaped core material 2 consists of laminated body of glass short fiber webs and webs are combined by physical interengagement, the board shaped core material 2 is plastically deformed in a density range of 100-400 kg/m³.;COPYRIGHT: (C)2006,JPO&NCIPI