Use of photocatalytic preparations of colloidal titanium dioxide for preserving the original appearance of cementitious, stone, or marble products
US6824826B1 · kind B1 · utility
14Cited by
5References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | May 1, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2111/2061
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Use of photocatalytic preparations of colloidal titanium dioxide optionally doped with a metal chosen from groups I-VA, and the lanthanide and actinide series of the periodic table, for preserving the original appearance of cementitious, stone, and marble products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.