Method of dyeing keratin-containing fibres
US7354572B2 · kind B2 · utility
0Cited by
3References
6Claims
0Family size
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Key dates
| Filing date | Oct 10, 2001 |
| Grant date | Apr 8, 2008 |
| Priority date | — |
| Expiry date | Nov 15, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/4946
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of dyeing keratin-containing fibers, especially human hair, which comprises using dyes of formula (1), wherein X− is an anion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.