Invention Grant
- Patent Title: Composition for dyeing the hair, comprising an oxidation base of para-phenylenediamine type and a 2-amino-5-ethylphenol coupler
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Application No.: US16062207Application Date: 2016-12-20
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Publication No.: US11324682B2Publication Date: 2022-05-10
- Inventor: Valérie Nicou , Aziz Fadli , Frédéric Le Grand
- Applicant: L'OREAL
- Applicant Address: FR Paris
- Assignee: L'OREAL
- Current Assignee: L'OREAL
- Current Assignee Address: FR Paris
- Agency: The Marbury Law Group, PLLC
- Priority: FR1562910 20151221
- International Application: PCT/EP2016/082000 WO 20161220
- International Announcement: WO2017/108840 WO 20170629
- Main IPC: A61K8/20
- IPC: A61K8/20 ; A61K8/22 ; A61Q5/10 ; A61K8/41 ; A61K8/34

Abstract:
The present invention relates to a composition for dyeing keratin fibres, comprising: (a) at least one 2-amino-5-ethylphenol coupler, or an addition salt or solvate thereof, and (b) at least one oxidation base 3-(2,5-diaminophenyl)-1-propanol and/or the addition salts thereof or solvates thereof. The invention also relates to a process for dyeing keratin fibres using this composition. Finally, the invention relates to the use of such a composition for dyeing keratin fibres, and in particular the hair.
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