Method for depositing titanium oxide layers using soluble powders

Abstract

A sol-gel process for the production of titanium oxide layers which comprises the following stages: (i) preparation of a soluble, titanium-containing powder by: (a) reaction of a titanium alcoholate of the general formula Ti(OR)4, in which the radicals R are identical or different and represent straight-chain, branched or cyclic alkyl or alkenyl radicals having 1 to 10 carbon atoms, which optionally have one or more carbonyl and/or ester and/or carboxyl functions, with one or more polar compounds with completing, chelating properties, (b) heating of the solution, (c) adding of water to the solution, optionally in the presence of a catalyst, (d) concentrating of the solution until a powder is obtained, (ii) dissolving of the powder to form a sol, (iii) coating of a substrate with the sol and (iv) heating of the coated substrate, described.

Dependencies are inferred from the claim text.