Granular materials, a process for their production and their use

Claim 1

White, black or coloured granular materials for the production of white, black, or coloured coatings of high abrasion-resistance, wherein the granular materials have the following composition: ______________________________________ 2 to 40 weight % of inorganic pigments, 20 to 97 weight % of one or more inorganic elements, inorganic compounds or mixtures thereof, said inorganic elements or inorganic compounds having a Mohs hardness of at least 7, 1 to 25 weight % of one or more inorganic binders, organic binders, or mixtures thereof, 0 to 50 weight % of one or more frits, glasses or mixtures thereof, and 0 to 40 weight % of one or more inorganic fillers; ______________________________________ wherein the granular material components excluding the binder or binders are dry- or wet-milled jointly or separately or in any combination to produce grain sizes from >0 to 100 microns, dried in the case of wet-milling, subsequently pulverized, granulated in a granulation unit with said one or more inorganic binders, organic binders, or mixtures thereof, in an amount from 1 to 25 weight %, based on the solids content of said binder or binders optionally with the addition of water or other suitable liquids, and then heat-treated between 150° C. and 500° C. for up to 24 hours.