Dynamit Nobel Aktiengesellschaft

Karl H Neuschaeffer

Paul Spielau

Hans-Werner Engels

Gunter Zoche

Guenter Zoche

Facings for use as building components with a solid molded part constituting the visible side and a foam member of an inorganic and/or organic foam can be produced by shaping and heat curing from inorganic, aqueous molding compositions, wherein the molding composition contains a reactive oxide mixture, an alkali silicate solution, optionally alkali hydroxide, and fillers and auxiliary agents.

Facings of inorganic molding compositions for building components

Molded parts having high flexural strength, based on alkali silicates, can be produced by casting and/or press-molding and curing by heating from aqueous molding compositions which are prepared from an oxide mixture containing amorphous silicic acid and aluminum oxide, as well as, optionally, as an additional component, aqueous, amorphous, disperse-powdery silicic acid, dissolved SiO.sub.2, and alkali from alkali silicate solutions, optionally alkali hydroxide or its aqueous solutions and, if desired, fillers, by means of mixing under agitation. By addition of a blowing agent inorganic foamed products can be obtained.

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Leichlingen, Germany

Karl H Neuschaeffer