Composition comprising a natural dye, a triarylmethane direct dye and an aromatic compound
US12053544B2 · kind B2 · utility
0Cited by
23References
20Claims
0Family size
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Key dates
| Filing date | Jul 3, 2020 |
| Grant date | Aug 6, 2024 |
| Priority date | — |
| Expiry date | Dec 21, 2040 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/432
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a composition for dyeing human keratin fibers, comprising at least one natural dye, at least one triarylmethane synthetic direct dye and at least one compound of formula (I), in which Y represents a C1-C4 hydroxyalkyl group or a C1-C4 hydroxyalkyloxy radical, n denotes an integer ranging from 0 to 5, and X, which may be identical or different, represents a C1-C4 alkyl radical or a halogen. The invention also relates to a process for dyeing human keratin fibers using this composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.