Cationic tetrahydropyrazolopyridines, dye composition comprising such oxidation bases, implementation process therefor and use thereof
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United States of America Patent
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Jul 14, 2015
Grant Date -
Dec 4, 2014
app pub date -
Dec 17, 2012
filing date -
Dec 16, 2011
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Abstract
The present invention relates to particular cationic tetrahydropyrazolopyridine compounds of formula (I) below and also to the use thereof for dyeing keratin fibers, in particular human keratin fibers such as the hair. The invention also relates to a dye composition comprising, in a suitable dyeing medium, one or more cationic tetrahydropyrazolopyridines as defined previously. Finally, the invention relates to a dyeing device using the said composition.
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