Ammonium hydroxide-free hair dye compositions containing a buffer system
US8834580B2 · kind B2 · utility
1Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 18, 2012 |
| Grant date | Sep 16, 2014 |
| Priority date | — |
| Expiry date | May 18, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to oxidative hair colorants containing a buffer system consisting of saccharine and at least one alkanolamine. The colorants are free of ammonium hydroxide and sources of ammonia.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.