REFRACTORY FOAM

Abstract: a porous refractory in the ko—sio—bosystem is formed by chemical direct foaming by heating to over 600� c., resulting in adherent black or white foam. the foam can function as highly porous thermal insulation, a high or low thermal emissivity surface, as a sealant for deteriorated refractory surfaces, as a filler for pockmarks/holes/gaps or as a bonding agent for parts with large gaps between them.

Inventor(s): Cressie E. Holcombe, JR., Patrick J. Ritt, William Brent Webb

CPC Classification: C04B41/4582 (LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules )}; CERAMICS (devitrified glass-ceramics ); REFRACTORIES; TREATMENT OF NATURAL STONE)

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