Coated substrates having undercoating layers that exhibit improved photocatalytic activity
US8097340B2 · kind B2 · utility
1Cited by
24References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2006 |
| Grant date | Jan 17, 2012 |
| Priority date | — |
| Expiry date | Jun 18, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2217/91
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A coated substrate is disclosed. The coated substrate includes a substrate; an undercoating layer comprising at least one layer selected from a mixture of silica and zirconia; a mixture of silica and alumina; or a mixture of silica, alumina and titania overlaying at least a portion of the substrate; and a functional coating overlaying at least a portion of the undercoating. The coated substrates of the invention exhibit improved properties such as increased durability, photocatalytic activity, etc. as a result of the undercoating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.