Patent Interference No. 103,548
HO
CH2
CH2 (I)
HO N
R
in which R represents a hydrogen atom or a C1-C4 alkyl group, or an
acid addition salt thereof in a medium suitable for dyeing wherein the medium
suitable for dyeing is a water/solvent mixture and wherein the solvent of the
water/solvent mixture is ethyl alcohol, propyl alcohol, isopropyl alcohol, tert-butyl
alcohol, ethylene glycol, ethylene glycol monomethyl ether, ethylene glycol
monoethyl ether, ethylene glycol monobutyl ether, ethylene glycol monoethyl
ether acetate, propylene glycol, propylene glycol monomethyl ether, dipropylene
glycol monomethyl ether or methyl lactate.
31. A composition according to claim 30 wherein the composition contains a
cationic, nonionic or amphoteric surfactant or a mixture thereof, thickener,
perfume, sequestering agent, film-forming agent, treatment agent, dispersing
agent, conditioner, preservative, opacifying agent or agent for swelling keratinous
fibre, or a mixture thereof.
32. A composition according to claim 30 wherein the salt is the hydrochloride or
hydrobromide.
33. A composition according to claim 30 wherein 5,6-dihydroxyindoline is 5,6-
dihydroxyindoline, 5,6-dihydroxyindoline hydrochloride, 5,6-dihydroxyindoline
hydrobromide, N-ethyl-5,6-dihydroxyindoline, N-methyl-5,6-dihydroxyindoline or
N-butyl-5,6-dihydroxyindoline.
34. A method for dyeing keratinous fibres, in particular human keratinous fibres,
wherein at least one composition identified as (A) comprising from 0.01 to 8% by
weight, relative to the total weight of the composition, of at least one 5,6-
dihydroxyindoline corresponding to the formula (I):
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Last modified: November 3, 2007