Photocatalytic coatings having improved low-maintenance properties
US7862910B2 · kind B2 · utility
22Cited by
214References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2007 |
| Grant date | Jan 4, 2011 |
| Priority date | — |
| Expiry date | Oct 11, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/265
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention provides a substrate bearing a photocatalytic coating. In some embodiments, the coating includes a photocatalytic film comprising titania deposited over a layer comprising tungsten oxide, aluminum oxide, niobium oxide or zirconium oxide. Additionally or alternatively, the photocatalytic film can include both titania and a material selected from the group consisting of nitrogen, tantalum, copper and silica. The invention also provides methods of depositing such coatings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.