Keratin dyeing compounds, keratin dyeing compositions containing them, and use thereof
US7297168B2 · kind B2 · utility
24Cited by
24References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2005 |
| Grant date | Nov 20, 2007 |
| Priority date | — |
| Expiry date | Sep 8, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/4324
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Five-membered heteroaromatic keratin dyeing compounds with one, two, or three heteroatoms. This invention further relates to a composition for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and one or more 5-membered heteroaromatic keratin dyeing compounds with one, tow, or three heteroatoms. This invention further relates to a method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.