MATERIAU ISOLANT A PLUSIEURS COUCHES ET SON PROCEDE DE PRODUCTION PLJAKUBOWSKI, DIPL.-CHEM., ZENON, DANZIG-NOWY PORT, PL N-(4-(2-(PYRAZOL-1-CARBONAMIDO)-ATHYL)-BENZOLSULFONYL) CARBONIDE,

摘要

By bonding a graphite sheet possessing tightness to at least one surface of carbon fiber felt sheet possessing gas permeability by means of a carbonaceous binder, a multilayer thermally insulating material suitable for use in a heating furnace employing a nonoxidizing atmosphere is obtained. This insulating material has mechanical strength which does not decrease with a long period of use and gives rise to little contamination of articles being heated in the furnace.