Method of dyeing hair with indolines, indoles and indazoles
AssigneeAmerican Cyanamid Company
InventorsRichard Alfred Parent, Frank Fred Loffelman
Life of this patent
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Abstract
A method for dyeing hair and other keratinaceous materials with certain amino, hydroxy, methoxy and nitro-containing indoline, indole and indazole compounds, and combinations thereof, and keratinaceous fibers dyed therewith.
Claims7
A method for dyeing hair and other keratinaceous materials which comprises contacting said materials with a compound selected from the group consisting of 5-aminoindoline, 5,6-diaminoindoline, 5,7-diaminoindoline, 5-amino-6-nitroindoline, 5-bromo-7-nitroindoline, 5-hydroxyindoline, 6-nitroindoline, 5-aminoindole, 6-aminoindole, 5-hydroxyindole, 5-methoxyindole, 5-hydroxy-2-methylindole, 5-amino-2,3-dimethylindole, 6-nitroindole, and 5-aminoindole.
Dependencies are inferred from the claim text.