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US 8,137,412 B2Granted
Bleaching with concomitant hair tonicizing
AssigneeHenkel AG & Co. KGaA
InventorsGeorg Suenger, Wibke Gross
Life of this patent
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Abstract
Bleaching method for keratin fibers, using an agent comprising a bleach activator system comprising at least one cationic acylpyridinium derivative of formula (I), and hydrogen peroxide and use of agents for bleaching keratin fibers, in particular human hair, comprising at least one cationic acylpyridinium derivative, for reinforcing the bleaching capacity with concomitant improvement in the condition of the fibers.
Claims8
Method for bleaching keratinous fibers comprising:
- applying a bleaching agent onto keratin-containing fibers,
- leaving the agent on the fibers for a time of 1 to 30 minutes, and
- rinsing out the agent or washing out the agent with a shampoo,
- wherein the bleaching agent comprises in a cosmetic carrier hydrogen peroxide,
- at least one cationic acyl pyridinium derivative of formula (I)
- wherein
- R is a C1-C6 alkyl group, a C2-C6 alkenyl group, a C2-C6 hydroxyalkyl group, a C1-C6 alkoxy C2-C6 alkyl group, a carboxy C1-C6 alkyl group, an aryl C1-C6 alkyl group, a C1-C6 dialkylamino C2-C6 alkyl group, a heteroaryl C1-C6 alkyl group, a 3-oxobutyl group, a 2-oxopropyl group, an aryl group or a heteroaryl group,
- R′ is a C1-C4 alkyl group, a C2-C6 hydroxyalkyl group or a C1-C6 alkoxy C2-C6 alkyl group, and
- X− is a physiologically acceptable anion, at least one associative polymer and
- at least one co-bleach activator and/or the physiologically acceptable salt thereof.
7 more elements
Agent for bleaching keratinous fibers comprising in a cosmetic carrier:
- (i) at least one cationic acyl pyridinium derivative of formula (I)
- where
- R is a C1-C6 alkyl group, a C2-C6 alkenyl group, a C2-C6 hydroxyalkyl group, a C1-C6 alkoxy C2-C6 alkyl group, a carboxy C1-C6 alkyl group, an aryl C1-C6 alkyl group, a heteroaryl C1-C6 alkyl group, a mono- or di-C1-C6-alkylamino C2-C6 alkyl group, a 3-oxobutyl group, a 2-oxopropyl group, an aryl group or a heteroaryl group,
- R′ is a C1-C4 alkyl group, a C2-C6 hydroxyalkyl group or a C1-C6 alkoxy C2-C6 alkyl group, and
- X− is a physiologically acceptable anion,
- (ii) at least one associative polymer,
- (iii) hydrogen peroxide, and
- (iv) at least one co-bleach activator and/or the physiologically acceptable salt thereof.
5 more elements
Dependencies are inferred from the claim text.