Compositions for dyeing keratinous fibres, containing 3-aminopyrazolo [1,5-a]pyrimidines, method of dyeing and novel 3-aminopyrazolo [1,5-a]pyrimidines
US6248137A · kind A · utility
26Cited by
5References
56Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1998 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Dec 3, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to novel compositions for the oxidation dyeing of keratinous fibers, comprising at least one 3-aminopyrazolo[1,5-a]-pyrimidine, to the method of dyeing which employs this composition, to novel 3-aminopyrazolo[1,5-a]pyrimidines and to the process for their preparation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.