Dye composition using a particular phenolic coupler in a medium rich in fatty substances, processes and devices
US9241886B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2012 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Apr 19, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a composition for dyeing keratin fibers, comprising:—one or more fatty substances,—one or more surfactants;—one or more oxidation bases,—one or more phenol-derived couplers corresponding to the formula (B2) below: * R1, R3, R5, represent a hydrogen; an optionally substituted C1-C8 alkyl or alkenyl radical; —SR or —OR; a saturated C5-C7 cyclic group; a (C1-C4)alkylcarbonyl group; hydrocarbonyl; a sulphonic or carboxylic acid group; * at least one of the radicals R1, R3, R5 representing a hydrogen atom; * R2, R4 represent a hydrogen; an optionally substituted C1-C8 alkyl or alkenyl; —SR; a (C1-C4)alkyl-carbonyl; hydrocarbonyl; a sulphonic or carboxylic acid group; * two groups chosen from R1, R2, R3, R4, R5 and borne by adjacent carbon atoms may form, together with said carbon atoms, a ring or a heterocycle with a single heteroatom, this ring or heterocycle comprising no double bond other than that of the ring to which it is fused; * at least one of the radicals R1, R2, R3, R4, R5 being other than hydrogen;—one or more alkalinizing agents; the fatty substance content representing in total at least 25% by weight relative to the total weight of the comp…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.