Nanoparticulate titanium dioxide coatings, and processes for the production and use thereof
US6653356B2 · kind B2 · utility
74Cited by
2References
4Claims
0Family size
Inventor
Key dates
| Filing date | Dec 13, 2000 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | Dec 22, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2006/80
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Nanoparticulate titanium dioxide coating produced by educing flocculates of titanium dioxide nanoparticles from a titanyl sulfate solution and dispersing the nanoparticles in a polar sol-forming medium to make a sol suitable as a coating usable to impart photocatalytic activity, U.V. screening properties, and fire retardency to particles and to surfaces. The photocatalytic material and activity is preferably localized in dispersed concentrated nanoparticles, spots or islands both to save costs and leverage anti-microbial effects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.