Processes for coloring and/or conditioning hair
US4975092A · kind A · utility
8Cited by
2References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 16, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Nov 16, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process for coloring and/or conditioning hair using modified primary intermediates and/or a modified coupler containing a hydrophobic group or a group containing a cationic site amenable to reaction with an anionic surfactant; novel modified primary intermediates and modified couplers also being disclosed as well as novel synthetic methods for making these compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.