BIS-(2-4-diaminophenoxy) benzenes and their use as coupling components in oxidative hair coloring compositions and methods
US5865854A · kind A · utility
11Cited by
0References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1997 |
| Grant date | Feb 2, 1999 |
| Priority date | — |
| Expiry date | Nov 21, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C217/90
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention provides compositions and methods containing novel bis-(2,4-diaminophenoxy)benzene coupling compounds, and cosmetically acceptable salts thereof, for use with conventional primary intermediate dye compounds and oxidizing agents for the oxidative coloring of human hair. The compositions of the invention may also contain other components typically used in oxidative hair dye preparations to impart intense and lasting coloration to hair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.