METHOD FOR PRODUCING HEAT INSULATING MATERIAL

PROBLEM TO BE SOLVED: To provide a method for producing a high-strength heat insulating material with slight adverse effects on human bodies due to no asbestos contained therein and excellent in heat resistance, mechanical strength, toughness, etc., while having good processability. SOLUTION: This m...

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Hauptverfasser:	TAKAHIRO KENICHI, ANJI TOSHIYUKI, HIRAMATSU KENGO
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BRAIDING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE COTTON-WOOL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS KNITTING LACE-MAKING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIME, MAGNESIA MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL METALLURGY NON-WOVEN FABRICS PERFORMING OPERATIONS REFRACTORIES SLAG TEXTILES TRANSPORTING TREATMENT OF NATURAL STONE TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method for producing a high-strength heat insulating material with slight adverse effects on human bodies due to no asbestos contained therein and excellent in heat resistance, mechanical strength, toughness, etc., while having good processability. SOLUTION: This method for producing a heat insulating material comprises impregnating 100 pts.wt. of an inorganic fibrous sheet with 300-500 pts.wt. of an inorganic paste comprising 40-80 wt.% of a heat-resistant powder, 5-40 wt.% of aluminum primary phosphate and 5-20 wt.% of a curing agent for the aluminum primary phosphate, forming the paste impregnated sheet, drying the paste-impregnated sheet at 60-150 deg.C, forming sheetlike materials, laminating the resultant sheetlike materials, thermocompression forming the obtained laminate at 150-200 deg.C under 20-50 kgf/cm2, forming an inorganic formed compact and after curing the inorganic formed compact at 180-230 deg.C. The obtained heat insulating material comprises 10-50 wt.% of the inorganic fibrous sheet and 50-90 wt.% of an inorganic composition which is a reactional product of the inorganic paste.