OXIDIZING COMPOSITION COMPRISING AN OXYALKYLENATED FATTY ALCOHOL AND AN OXYALYKLENATED FATTY AMIDE

Abstract

The subject of the invention is a composition for treating keratin fibers, comprising one or more oxyalkylenated fatty amide(s) of formula (I), one or more oxyalkylenated fatty alcohol(s), and one or more chemical oxidizing agent(s); it being understood that the oxyethylenated fatty alcohol(s)/oxyethylenated fatty amide(s) of formula (I) weight ratio is less than or equal to 1 and that the pH of the composition is less than or equal to 5.

Claims

1.-16 (canceled)

17. An oxidizing composition comprising: at least one oxyalkylenated fatty amide of formula (I) below:
R—CO—N(R′)-(Alk-O).sub.nH  (I), wherein: R represents an optionally substituted C.sub.8-C.sub.30 alkyl or alkenyl radical; R′ represents a hydrogen atom or an (Alk-O).sub.mH radical; Alk represents a divalent alkylene radical comprising from 1 to 8 carbon atoms; n and m, independently of one another, denote a number ranging from 1 to 50; at least one oxyalkylenated fatty alcohol; and at least one chemical oxidizing agent; wherein the weight ratio of the at least one oxyalkylenated fatty alcohol to the at least one oxyalkylenated fatty amide of formula (I) is less than or equal to 1, and wherein the pH of the composition is less than or equal to 5.

18. The composition of claim 17, wherein the at least one oxyalkylenated fatty amide is chosen from oxyethylenated fatty amides of formula (I′) below:
R—CO—N(R′)—(CH.sub.2CH.sub.2O).sub.nH  (I′), wherein: R represents an optionally substituted C.sub.8-C.sub.30 alkyl or alkenyl radical; R′ represents a hydrogen atom or an (CH.sub.2CH.sub.2O).sub.mH radical; n and m, independently of one another, denote a number ranging from 1 to 50.

19. The composition of claim 17, wherein in formula (I), R′ denotes a hydrogen atom, R denotes a C.sub.12-C.sub.22 alkyl or alkenyl radical, and n denotes a number ranging from 1 to 50.

20. The composition of claim 17, wherein in formula (I), n denotes a number ranging from 1 to 10.

21. The composition of claim 17, wherein the at least one oxyalkylenated fatty amide is chosen from oxyethylenated rapeseed acid amides.

22. The composition of claim 17, wherein the at least one oxyalkylenated fatty amide is present in an amount ranging from 0.1% to 5% by weight, relative to the total weight of the composition.

23. The composition of claim 17, wherein the at least one oxyalkylenated fatty alcohol is chosen from oxyalkylenated fatty alcohols comprising at least 10 oxyalkylenated units.

24. The composition of claim 17, wherein the at least one oxyalkylenated fatty alcohol is chosen from oxyalkylenated fatty alcohols comprising from 10 to 35 oxyalkylenated units.

25. The composition of claim 17, wherein the at least one oxyalkylenated fatty alcohol is chosen from oxyethylenated fatty alcohols.

26. The composition of claim 17, wherein the at least one oxyalkylenated fatty alcohol is chosen from oxyethylenated stearyl alcohol, oxyethylenated cetyl alcohol, oxyethylenated cetylstearyl alcohol, or mixtures thereof.

27. The composition of claim 17, wherein the at least one oxyalkylenated fatty alcohol is chosen from stearyl alcohol 20 OE and/or cetylstearyl alcohol 25 OE.

28. The composition of claim 17, wherein the at least one oxyalkylenated fatty alcohol comprises at least two different oxyalkylenated fatty alcohols.

29. The composition of claim 17, wherein the at least one oxyalkylenated fatty alcohol comprises at least two different oxyethylenated fatty alcohols.

30. The composition of claim 17, wherein the at least one oxyalkylenated fatty alcohol is present in an amount ranging from 0.1% to 5% by weight, relative to the total weight of the composition.

31. The composition of claim 17, wherein the weight ratio of the total amount of the at least one oxyalkylenated fatty alcohol to the total amount of the at least one oxyalkylenated fatty amide of formula (I) ranges from 0.8 to 0.5.

32. The composition of claim 17, wherein the at least one chemical oxidizing agent is chosen from hydrogen peroxide, urea peroxide, alkali metal bromates, peroxygenated salts, alkali metal or alkaline-earth metal percarbonates, or mixtures thereof.

33. The composition of claim 17, wherein the at least one chemical oxidizing agent is present in an amount ranging from 0.1% to 50% by weight, relative to the total weight of the composition.

34. A process for treating keratin fibers comprising applying an oxidizing composition to the keratin fibers; wherein the oxidizing composition comprises: at least one oxyalkylenated fatty amide of formula (I) below:
R—CO—N(R′)-(Alk-O).sub.nH  (I),  wherein: R represents an optionally substituted C.sub.8-C.sub.30 alkyl or alkenyl radical; R′ represents a hydrogen atom or an (Alk-O).sub.mH radical; Alk represents a divalent alkylene radical comprising from 1 to 8 carbon atoms; n and m, independently of one another, denote a number ranging from 1 to 50; at least one oxyalkylenated fatty alcohol; and at least one chemical oxidizing agent; wherein the weight ratio of the at least one oxyalkylenated fatty alcohol to the at least one oxyalkylenated fatty amide of formula (I) is less than or equal to 1, and wherein the pH of the oxidizing composition is less than or equal to 5.

35. A process for dyeing keratin fibers comprising: sequentially or simultaneously applying to the keratin fibers an oxidizing composition and a dyeing composition comprising at least one direct dye and/or at least one oxidation dye; wherein the oxidizing composition comprises: at least one oxyalkylenated fatty amide of formula (I) below:
R—CO—N(R′)-(Alk-O).sub.nH  (I),  wherein: R represents an optionally substituted C.sub.8-C.sub.30 alkyl or alkenyl radical; R′ represents a hydrogen atom or an (Alk-O).sub.mH radical; Alk represents a divalent alkylene radical comprising from 1 to 8 carbon atoms; n and m, independently of one another, denote a number ranging from 1 to 50; at least one oxyalkylenated fatty alcohol; and at least one chemical oxidizing agent; wherein the weight ratio of the at least one oxyalkylenated fatty alcohol to the at least one oxyalkylenated fatty amide of formula (I) is less than or equal to 1, and wherein the pH of the oxidizing composition is less than or equal to 5.

Description

EXAMPLE

[0106] The following compositions are prepared (amounts in g % of active material).

TABLE-US-00001 TABLE 1 A B C D E (invention) (invention) (invention) (comparative) (comparative) Hydrogen 12 6 1.5 12 12 peroxide Phosphoric qs pH 2.2 ± qs pH 2.2 ± qs pH 2.2 ± qs pH 2.2 ± qs pH 2.2 ± acid 0.2 0.2 0.2 0.2 0.2 Etidronic acid, 0.06 0.06 0.06 0.06 0.06 tetrasodium salt Tetrasodium 0.04 0.04 0.04 0.04 0.04 pyrophosphate. 10 H.sub.2O Sodium 0.035 0.035 0.035 0.035 0.035 salicylate Water qs 100 qs 100 qs 100 qs 100 qs 100 Glycerol 0.5 0.5 0.5 0.5 0.5 Oxyethylenated 0.2 0.2 0.2 0.2 0.2 stearyl alcohol (20 OE) (50% linear — — — — 1.016 70/30 C13/C15)alkyl ether carboxylic acid monoethanolamide (2 OE) Oxyethylenated 0.57 0.57 0.57 0.57 0.57 (25 OE) cetylstearyl alcohol Cetearyl 2.28 2.28 2.28 2.28 2.28 alcohol Oxyethylenated 1.016 1.016 1.016 0.508 — rapeseed acid amide (4 OE) Weight ratio 0.76 0.76 0.76 1.51 0.76 Oxyethylenated fatty alcohol(s)/ oxyethylenated fatty amide(s)

[0107] The compositions are placed in the refrigerator for 2 months at 4° C. and their stability is evaluated visually after a return to ambient temperature.

[0108] Compositions A, B and C according to the invention are stable (macroscopically homogeneous and turbid) after 2 months at 4° C.

[0109] Composition D, which has a weight ratio of the amount of oxyethylenated fatty alcohol(s) to the amount of oxyethylenated fatty amide(s) of 1.51, is not stable; phase separation occurs a few days after formulation D has been placed in the stability test at 4° C. (translucent lower phase, turbid upper phase).

[0110] The same observation was made with regard to composition E which represents a comparative of a formula similar to composition A, but with the oxyethylenated fatty amide of formula (I) according to the invention being replaced in an equivalent amount of active material with an oxyethylenated fatty amide outside the invention. Composition E is not stable; phase separation occurs a few days after formulation E has been placed in the stability test at 4° C. (translucent lower phase, turbid upper phase).

TABLE-US-00002 TABLE 2 A B C D E (Invention) (Invention) (Invention) (comparative) (comparative) Stability Stable Stable Stable Not stable Not at 4° C. Macroscopically Macroscopically Macroscopically Phase stable for 2 homogeneous homogeneous homogeneous separation Phase months Turbid Turbid Turbid separation