Thickened catalyzed dye system
US10952947B2 · kind B2 · utility
0Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2019 |
| Grant date | Mar 23, 2021 |
| Priority date | — |
| Expiry date | Mar 26, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/805
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a hair dye system. The hair dye system includes at least one dye precursor, an oxidizing agent, and a catalyst. The catalyst is a homogeneous catalyst or a heterogeneous catalyst and the dye system has a viscosity of less than about 2,500 mPa-s, when measured at a shear rate of about 25 s−1 and at about 25° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.