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US 7,309,664 B1Granted
Substrate with a photocatalytic coating
AssigneeSaint-Gobain Recherche
InventorsChristian Marzolin, Arnaud Marchal, Xavier Talpaert
Life of this patent
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Abstract
A substrate, its process of manufacture, and its applications. The substrate includes a fibrous material which is provided, over at least a portion of its surface and/or within its thickness, with a coating with photocatalytic properties including a semi-conducting material with photocatalytic properties of the oxide or sulphide type.
Claims19
A substrate comprising:
- a fibrous material;
- and
- a photocatalytic coating material coating at least a portion of the fibrous material and including a photocatalytic semi-conducting material and an adhesion promoter for promoting adhesion of the photocatalytic semi-conducting material to the fibrous material,
- wherein the photocatalytic semi-conducting material comprises titanium oxide which is at least partly crystallized in anatase form and the photocatalytic coating material coats fibers in the portion of the fibrous material over a thickness of between 30 and 50 nm, which is comparable to a means size of particles of the at least partly crystallized titanium oxide in anatase form.
1 more element
A process for manufacturing a substrate, comprising:
- depositing a liquid binder to bind fibers and forms a fibrous material;
- and
- depositing a photocatalytic coating material in liquid phase over at least a portion of the fibrous material such that the photocatalytic coating material coats fibers in the portion of the fibrous material over a thickness of between 30 and 50 nm, which is comparable to a means size of particles of at least partly crystallized titanium oxide in anatase form, the photocatalytic material including a photocatalytic semi-conducting material and an adhesion promoter for promoting adhesion of the photocatalytic semi-conducting material to the firbous material,
- wherein the photocatalytic semi-conducting material comprises titanium oxide at least partially crystallized in anatase form.
1 more element
Dependencies are inferred from the claim text.