Compositions containing 1,4-diamino-2-methoxymethylbenzene and salts thereof and methods for dyeing keratin fibers with same
US6648923B1 · kind B1 · utility
15Cited by
4References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 12, 2000 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Dec 25, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C217/76
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The aqueous or aqueous-alcoholic oxidative dye precursor composition includes 1,4-diamino-2-methoxymethylbenzene, or a physiologically compatible salt thereof, as developer substance and one or more conventional coupler compounds. A ready-to-apply hair dyeing mixture having a pH of 6 to 10.5 is made by mixing the aqueous or aqueous-alcoholic oxidative dye precursor composition with an oxidizing agent, such as 6% hydrogen peroxide in a weight ratio of 5:1 to 1:3. The compositions may also contain conventional cosmetic additive ingredients and direct-dyeing dye compounds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.