Layer obtained from an aqueous dispersion containing silicium-titanium mixed oxide powder produced by flame hydrolysis

摘要

Layer comprises an aqueous dispersion containing a silicon-titanium mixed oxide powder applied to a substrate. Independent claims are also included for the following: (a) a process for the production of the layer comprising applying an aqueous dispersion containing a silicon-titanium mixed oxide powder to a substrate, and sintering by thermal treatment; and (b) a dispersion prepared from a silicon-titanium mixed oxide powder. Preferred Features: The layer is 100 nm to 1 mm, preferably 1-50 mu m, especially 5-15 mu m thick. The titanium dioxide content of the powder is 0.1-99.9, preferably 2-20 wt.%.