Antibacterial titania and process for producing the same
US5935608A · kind A · utility
14Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 1997 |
| Grant date | Aug 10, 1999 |
| Priority date | — |
| Expiry date | Apr 15, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N59/16
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An antibacterial titania comprising a titania to which ions of an antibacterial metal are adhered, wherein the antibacterial metal is silver; and the antibacterial titania further contains chlorine at a Cl/Ag molar ratio in a range of from 2.8 to 7.2. A process for producing an antibacterial titania which comprises the steps of: (1) incorporating a salt of an antibacterial metal into a slurry of metatitanic acid to adhere ions of the antibacterial metal to titania in the metatitanic acid slurry; and (2) adding a source of chlorine ions to the slurry, wherein the antibacterial metal is silver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.