Use of latent pigments for high-remanence dyeing, composition containing the said pigments and processes using them
US7326255B2 · kind B2 · utility
1Cited by
3References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2003 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Apr 17, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/43
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to the use, for dyeing keratin fibres, of at least one latent pigment, which is soluble in a medium that is suitable for dyeing, and which can be chemically, thermally or photochemically converted in the fibres into water-insoluble pigments, of formula A(B)x The invention also relates to processes for dyeing keratin fibres using latent pigments, to particular compositions containing them and to multi-compartment dyeing devices or “kits”.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.