Dyes of improved optical brightness and/or fluorescence and compositions containing them
US7705144B2 · kind B2 · utility
19Cited by
4References
4Claims
0Family size
Inventor
Key dates
| Filing date | Sep 28, 2007 |
| Grant date | Apr 27, 2010 |
| Priority date | — |
| Expiry date | Feb 1, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Preparing dyes suitable for cosmetic use that start with known dyes and link them, for example, with 1,3,5 triazine to bulky organic groups that control solubility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.