Invention Grant
- Patent Title: Cationic aminoanthraquinones, their use for dyeing keratinous fibers, dyeing compositions containing them and methods of dyeing
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Application No.: US10190518Application Date: 2002-07-09
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Publication No.: US06645259B2Publication Date: 2003-11-11
- Inventor: Alain Genet , Alain Lagrange
- Applicant: Alain Genet , Alain Lagrange
- Priority: FR9815046 19981130
- Main IPC: A61K713
- IPC: A61K713
Abstract:
Cationic aminoanthraquinones in which at least one cationic charge is delocalized on a 5-membered unsaturated polynitrogen-containing heterocycle, their use as a direct dye in dyeing compositions for keratinous materials, in particular for human keratinous fibers such as hair, dyeing compositions containing them, and dyeing methods using these compositions.
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