HEAT INSULATING BOARD AND HEAT INSULATING METHOD USING SAME

摘要

A heat insulating board and a method for heat insulation by utilizing the same based on a novel heat-insulation theory utilizing a heat gradient. And, this heat insulating board is characterized by consisting of a composite body of an opaque heat-conducting base body positioned to face the low temperature zone and a heat conductive transparent layer positioned to face the high temperature zone, the said transparent layer having a heat volume and an absorption of heat of radiation smaller than the heat volume and absorption of heat of radiation of the said base body.