Compositions for dyeing keratin fibers containing pyrazolo(1,5-a)pyrimidine derivatives and dyeing processes
US6099593A · kind A · utility
138Cited by
6References
26Claims
0Family size
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Key dates
| Filing date | Dec 31, 1997 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Dec 31, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D487/04
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel compositions for the oxidation dyeing of keratin fibres, comprising at least one specific pyrazolo[1,5-a]pyrimidine derivative, a dyeing process using these compositions, novel pyrazolo[1,5-a]pyrimidine derivatives and a process for their preparation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.