Heat insulating board and method for heat insulation by using the same

摘要

PCT No. PCT/JP94/01459 Sec. 371 Date Feb. 22, 1996 Sec. 102(e) Date Feb. 22, 1996 PCT Filed Sep. 2, 1994 PCT Pub. No. WO95/06839 PCT Pub. Date Mar. 9, 1995A 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.