Oxidation dye composition for keratinous fibres comprising a para-aminophenol, 2-methyl-5-aminophenol and a para-phenylenediamine and/or a bis(phenylalkylenediamine)
US5514188A · kind A · utility
13Cited by
8References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 13, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Jul 13, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/415
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a dyeing composition for keratinous fibres and in particular for human keratinous fibres such as hair, comprising, in a suitable medium for dyeing, at least one oxidation dye precursor chosen from 3-methyl -para-aminophenol, 2-methyl-para-aminophenol and 2-hydroxymethyl-para-aminophenol, and their addition salts with an acid, as coupling agent, at least 2-methyl-5-aminophenol, or one of its addition salts with an acid; and at least one para-phenylenediamine and/or one bis-(phenylalkylenediamine) or one of their addition salts with an acid as oxidation dye precursor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.