Process and composition for dyeing hair utilizing an anionic polymeric/cationic polymer complex
US4911731A · kind A · utility
18Cited by
6References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1986 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Dec 3, 2006 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/57
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A process and composition for dyeing hair involving the precipitation of an anionic polymeric dye by means of a cationic polymer preferably in the presence of a surfactant and particularly an amphoteric surfactant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.