Back to results
US 6,680,135 B2Granted
Substrate with a photocatalytic coating
AssigneeSaint-Gobain Glass France
InventorsPhilippe Boire, Xavier Talpaert
Life of this patent
Estimating the term…
Abstract
The subject of the invention is a glass-, ceramic- or vitroceramic-based substrate (1) provided on at least part of at least one of its faces with a coating (3) with a photocatalytic property containing at least partially crystalline titanium oxide. It also relates to the applications of such a substrate and to its method of preparation.
Claims10
A self-cleaning article of manufacture, comprising:
- a glass-, ceramic-, or vitroceramic-based substrate having at least one surface over which organic contaminants are expected to accumulate,
- a photocatalytically-activated self-cleaning coating of a photocatalytically-activated self-cleaning and at least partially crystalline titanium oxide deposited on said at least one surface by sol-gel or liquid spray pyrolysis, and
- a barrier layer with respect to alkali metals between said at least one surface and the coating which comprises a member selected from the group consisting of silicon nitride, silicon oxynitride, silicon oxycarbide, Al2O3:F, and aluminum nitride.
Dependencies are inferred from the claim text.