Catalyzed air oxidation haircolor
US7758659B2 · kind B2 · utility
6Cited by
32References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2007 |
| Grant date | Jul 20, 2010 |
| Priority date | — |
| Expiry date | Jul 30, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/55
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An air-oxidation haircolor composition is based: a) water; b) water soluble metal salt as a catalyst; c) etidronic acid (1-hydroxyethane-1,1-diphosphoric acid) as a chelating agent and color deposition enhancer; d) oxidation primary dye intermediates; e) an aromatic triol such as 1,2,4-Benzenetriol; f) auxiliary oxidation dye couplers; g) dye antioxidants and stabilizers; h) optionally, a water soluble surfactant; i) optionally, a water soluble anionic polymer; j) a water soluble solvent system; and k) an alkalizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.