Use of film-forming titanium dioxide dispersions for cleaning and disinfecting surfaces, film-forming titanium dioxide dispersions
US6905814B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2000 |
| Grant date | Jun 14, 2005 |
| Priority date | — |
| Expiry date | Feb 15, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/148
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The invention concerns the use of a film-forming titanium dioxide dispersion for cleaning and disinfecting surfaces exposed to light, by depositing a film of titanium dioxide nanoparticles on said surfaces, the continuous phase of said dispersion comprising water and/or at least an alcohol with boiling point at less than 120° C., said dispersion having, when it comprises water, a pH different by at least 1 unit of the value of the titanium dioxide isoelectric pH in said dispersion. The invention also concerns a film-forming titanium dioxide dispersion further comprises a film-forming polymer. The invention further concerns a method for cleaning and disinfecting surfaces exposed to light which consists in depositing and then drying on said surfaces a titanium oxide film-forming dispersion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.