Nippon Steel Corporation

Isolite Insulating Products Co., Ltd.

Isolite Insulating Product Company Limited (isolite Kogyo K.k.)

Takeo Saeki

Goro Saiki

Tsunemi Ochiai

Shizuo Nakanishi

Naoki Tanetani

Eiji Horie

Shinichiro Oosawa

Teruo Shimao

Hideo Hisaka

Toshitaro Saito

A process for manufacturing heat-insulating firebricks wherein an alumina cement, a water-soluble styrene maleic resin and water are added to a mixture containing a refractory aggregate, an inorganic binder and a granular foamed polystyrene, the resultant mixture being then kneaded and cast in a mold. The added amounts of alumina cement and water-soluble styrene maleic resin are small and water is added to an extent of not more than 50% by weight. The alumina content in the alumina cement is between 8 and 75% by weight.

Process for making heat insulating firebricks

The present invention relates to a method for manufacturing a refractory erial having numerous through pores in a certain direction. The refractory material is manufactured by covering a woven fabric composed of combustible weft and/or warp threads with a slurry of a refractory material, and then drying and baking the coated fabric to burn out the combustible yarns so that the desired through pores may be obtained in directions corresponding to the direction of the burned out weft and warp threads.

Method for manufacturing refractory material having numerous through

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Toyokawa, Japan

Takeo Saeki