Packaged hair coloring composition
US6398822B1 · kind B1 · utility
11Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Dec 18, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S8/918
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Packaged hair coloring composition comprising a stable aqueous hair coloring composition comprising a compound of formula (I): wherein the variables are each as defined in the claims. The packaged hair coloring compositions of the present invention provide improved wash fastness of dye on hair, less color fade over time, improved consumer acceptance in terms of providing a single packaged hair dye composition and improved product stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.