Hair dyeing compositions containing at least one 2,4-diamino-alkylbenzene as coupler
US4324553A · kind A · utility
15Cited by
3References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1980 |
| Grant date | Apr 13, 1982 |
| Priority date | — |
| Expiry date | Jul 7, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/411
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides as a coupling component for an oxidation hair dye composition a meta-diaminoalkylbenzene or a salt thereof, the alkyl substituent being n-propyl, iso-propyl or n-butyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.