Invention Grant
- Patent Title: Composition for dyeing keratin fibres, comprising a styryl or naphthylamide direct dye bearing an aminoalkyl function, dyeing process and dye
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Application No.: US16061907Application Date: 2016-12-16
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Publication No.: US10993899B2Publication Date: 2021-05-04
- Inventor: Christian Blaise , Abel Messavussu
- 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: FR1562838 20151218
- International Application: PCT/EP2016/081341 WO 20161216
- International Announcement: WO2017/103045 WO 20170622
- Main IPC: A61Q5/10
- IPC: A61Q5/10 ; A61K8/49 ; A61Q5/06
Abstract:
The invention relates to a process for dyeing and/or lightening keratin fibres using direct dyes of styryl or naphthyl-amide type bearing a (C1-C18)aminoalkyl group. The dyeing process and the composition according to the invention make it possible in particular to obtain long-lasting, intense, chromatic and/or homogeneous colouring on the keratin fibres.
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