OXIDATION DYEING PROCESS USING A COMPOSITION COMPRISING AN AMINOBENZIMIDAZOLONE OXIDATION BASE AND A METAL CATALYST
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United States of America Patent
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May 19, 2016
app pub date -
Jun 23, 2014
filing date -
Jun 23, 2014
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Abstract
The invention relates to a process for dyeing keratin fibres, comprising the use of one or more metal catalysts and of a composition (A) comprising: —one or more oxidizing agents, and —at least one aminobenzimidazole oxidation base of formula (I) in which the radicals R1 to R5 represent, independently of each other, a hydrogen atom; a halogen atom; a C1-C6 alkyl radical; a C1-C6 alkoxy radical; a C1-C6 dialkylamino radical; a carboxylic radical (—COOH); a sulfonic radical (—S03H); a phenyl radical; a sat orated or unsaturated 5- to 7-membered heterocyclic radical, comprising one or more heteroatoms chosen from N, O and S.
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