Abstract: An aqueous, curable coating composition comprising a mixture of: (a) at least one water-soluble alkali metal silicate and (b) an effective amount of a water-soluble crosslinking agent comprising an alkali metal aluminophosphate, or an alkali metal aluminoborophosphate, or an ammonia aluminophosphate, or an ammonia aluminoborophosphate, or an alkali metal ammonia aluminophosphate, an alkali metal ammonia aluminoborophosphate, or a mixture of two or more of the foregoing phosphates. The coating composition will often not contain any visually discernible precipitate. The coating composition may be applied to a substrate, such as a glass, a ceramic, concrete or a metal and thereafter cured by air drying or by heating to a temperature of up to about 240° C. (or higher, if desired).

Abstract: An aqueous, curable coating composition comprising a mixture of: (a) at least one water soluble alkali metal silicate; and (b) an effective amount of a water-soluble crosslinking agent comprising an alkali metal aluminophosphate, or an alkali metal aluminoborophosphate, or an ammonia aluminophosphate, or an ammonia aluminoborophosphate, or an alkali metal ammonia aluminophosphate, an alkali metal ammonia aluminoborophosphate, or a mixture of two or more of the foregoing phosphates. Preferably, the coating composition will not contain any visually discernable precipitate. The coating composition may be applied to a substrate such as a glass, a ceramic, concrete or a metal and thereafter cured by air drying or by heating to a temperature of up to about 240° C. (or higher, if desired).

Abstract: Aqueous coating compositions for glass or ceramic substrates contain at least one water soluble alkali silicate and a cross-linking agent produced by reacting at least one alkali hydroxide with an aluminum phosphate. The coating compositions are applied to a glass or ceramic substrate and heat cured.

Abstract: A spandrel product is disclosed wherein the opaque coating is formulated from an alkali silicate composition cured with an inorganic hardener.

Abstract: A multiple glazed unit wherein glass sheets are bonded together and held in spaced relationship by means of a fiber-reinforced alkali silicate based cement composition is disclosed.

Abstract: An inorganic silicate cement composition has its thermal expansion coefficient controlled for use with different substrates subjected to temperature variations through the inclusion of selected inorganic filler materials. Selected metallic powder filler materials are provided to yield a relatively high thermal expansion coefficient and fused silica powder is provided as a filler material to yield a relatively low thermal expansion coefficient.

Abstract: A multiple glazed unit wherein glass sheets are bonded together and held in spaced relationship by means of an alkali silicate based cement composition is disclosed.

Abstract: A method for preparing aluminum trimetaphosphate comprising various chain form polyphosphate species by heating a mixture of aluminum hydroxide and ammonium phosphate is disclosed.

Abstract: A method for preparing aluminum trimetaphosphate predominately in the B-form by heating a mixture of aluminum hydroxide and ammonium phosphate compound is disclosed.

Abstract: Water-soluble, curable silicate compositions comprising sodium silicate and potassium silicate for use as coatings or cements are disclosed.

Abstract: A method for preparing a trimetaphosphate of a trivalent species by heating a mixture of ammonium phosphate and an oxygen-containing compound of the trivalent species is disclosed.

Abstract: A method is disclosed for making the .beta.-form of aluminum trimetaphosphate by reacting aluminum dihydrogen phosphate with ammonia and subjecting the reaction product to a single elevated temperature treatment.