Process for producing functional vitreous layers

Abstract

To produce functional vitrous, preferably colored or colloid-dyed layers, a composition produced by hydrolysis and polycondensation of (A) at least on hydrolyzable silane of general formula (I) SiX.sub.4 (I) wherein the radicals X are the same or different and represent hydrolyzable groups or hydroxy groups, or an oligomer derived therefrom, and (B) at least one organosilane of general formula (II) R.sup.1.sub.a R.sup.2.sub.b SiX.sub.(4-a-b) (II) wherein R.sup.1 is a non-hydrolyzable radical, R.sup.2 represents a radical carrying a functional group, X has the meaning given above, and a and b have the values 0, 1, 2 or 3, the sum (a+b) having the values 1, 2 or 3, or an oligomer derived therefrom with an (A):(B) substance ratio of 5-50:50-95, and optionally (C) one or more compounds of glass-forming elements, is mixed with at least one function carrier from the group of temperature-stable dyes or pigments, metallic or non-metallic oxides, coloring metallic ions, metallic or metallic compound colloids, and metal ions that react under reduction conditions to form metallic colloids; the composition mixed with the function carrier is applied onto a substrate and the coating is thermally condensed to form a vitreous layer.

Dependencies are inferred from the claim text.