Substrate with a photocatalytic coating
First Claim
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1. 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.
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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.
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10 Claims
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1. A self-cleaning article of manufacture, comprising:
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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.- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification