COSMETIC COMPOSITION COMPRISING A CATIONIC ASSOCIATIVE POLYMER, A CARBOXYLIC ANIONIC SURFACTANT, OPTIONALLY A NONIONIC SURFACTANT AND AN AMPHOTERIC OR ZWITTERIONIC SURFACTANT

Abstract

The invention relates to a cosmetic composition comprising a cationic associative polymer, a particular carboxylic anionic surfactant, optionally a nonionic surfactant and an amphoteric or zwitterionic surfactant. The invention also relates to a cosmetic process for treating keratin fibres, in particular human keratin fibres such as the hair, comprising the application of said cosmetic composition. The invention also relates to the use of said cosmetic composition for conditioning keratin fibres, in particular human keratin fibres such as the hair.

Claims

1. Cosmetic composition comprising: a) one or more cationic associative polymers, b) one or more alkyl(amido)ether carboxylie anionic surfactants, (c) optionally one or more nonionic surfactants, (d) one or more amphoteric orzwitterionic surfactants, and (e) optionally one or more silicones.

2. Composition according to claim 1, characterized in that the associative cationic polymer(s) a) are chosen from quaternized (poly)hydroxyethylcelluloses modified with groups including at least one fatty chain, and mixtures thereof, more preferentially from quaternized (poly)hydroxyethylcelluloses modified with groups including at least one alkyl group containing at least 10 carbon atoms, preferentially ranging from 10 to 22 carbon atoms and more preferentially ranging from 12 to 16 carbon atoms.

3. Composition according to claim 1, characterized in that the associative cationic polymer(s) a) are present in a total content ranging from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight and more preferentially from 0.1% to 3% by weight relative to the total weight of the composition.

4. Composition according to claim 1, characterized in that the alkyl(amido)ether carboxylic anionic surfactant(s) b) are chosen from alkyl ether carboxylic acids, alkyl(C.sub.6-C.sub.30 aryl) ether carboxylic acids, alkylamido ether carboxylic acids, preferably from alkyl ether carboxylic acids; and also the salts of these compounds; and mixtures thereof.

5. Composition according to claim 1, characterized in that the alkyl(amido)ether carboxylic anionic surfactant(s) b) are present in a total content ranging from 0.1% to 20% by weight, preferably from 0.5% to 10% by weight, more preferentially from 1% to 8% by weight and better still from 3% to 7% by weight, relative to the total weight of the composition.

6. Composition according to claim 1, characterized in that the weight ratio between the total content of the alkyl(amido)ether carboxylic anionic surfactant(s) b) and the total content of the cationic associative polymer(s) a) is less than or equal to 10, preferably between I and 10, more preferentially between 2 and 8.

7. Composition according to claim 1, characterized in that the nonionic surfactant(s) c) are chosen from oxyalkylenated (Cs-C24)alkylphen0Is; saturated or unsaturated, linear or branched, oxyalkylenated or glycerolated Cs to C40 alcohols; saturated or unsaturated, linear or branched, oxyalkylenated Cs to C30 fatty acid amides; esters of saturated or unsaturated, linear or branched Cs to C30 acids and of polyols or of polyethylene glycols; esters, which are preferably oxyethylenated, of saturated or unsaturated, linear or branched Cs to C30 acids and of sorbitol; fatty acids esters of sucrose; (Cs-C3o)alkenyl(p0Iy)glucosides, (Cs-C3o)alkenyl(p0Iy)glucosides, which are optionally oxyalkylenated (0 to 10 oxyalkylene units) and comprising from I to 15 glucose units, (Cs-C3o)alkyl(p0Iy)glucoside esters; oxyethylenated, saturated or unsaturated plant oils; condensates of ethylene oxide and/or of propylene oxide; N-(Cs-C3o)alkylglucamine and N-(Cs-C3o)acylmethylglucamine derivatives; aldobionamides; amine oxides; oxyethylenated and/or oxypropylenated silicones; and mixtures thereof; preferably from saturated or unsaturated, linear or branched, oxyalkylenated or glycerolated, preferentially oxyethylenated, Cs to C40 alcohols, and mixtures thereof; more preferentially, the nonionic surfactant c) is lauryl alcohol preferably oxyethylenated with 4 mol of ethylene oxide.

8. Composition according to claim 1, characterized in that the nonionic surfactant(s) c) are present in a total content ranging from 0.01% to 10% by weight, preferably from 0.1% to 5% by weight and more preferentially from 0.5% to 2% by weight relative to the total weight of the composition.

9. Composition according to claim 1, characterized in that the amphoteric or zwitterionic surfactant(s) d) are chosen from (Cs-C2o)alkylbetaines, (Cs-C2o)alkylamido(C3-Cs)alkylbetaines, and mixtures thereof, and preferably from cocoylbetaine and cocamidopropylbetaine, and mixtures thereof.

10. Composition according to claim 1, characterized in that the amphoteric or zwitterionic surfactant(s) d) are present in a total content ranging from 0.1% to 10% by weight, preferably from 0.25% to 8% by weight and more preferentially from 0.5% to 5% by weight relative to the total weight of the composition.

11. Composition according to claim 1, characterized m that the silicone(s) e) are chosen from polydialkylsiloxanes, organomodified silicones, amino silicones and mixtures thereof, preferably from polydialkylsiloxanes, amino silicones and mixtures thereof.

12. Composition according to claim 1, characterized in that the silicone(s) e) are present in a total content ranging from 0.01% to 10% by weight, preferably from 0.05% to 5% by weight and more preferentially from 0.1% to 2% by weight relative to the total weight of the composition.

13. Cosmetic process for treating keratin fibres, in particular human keratin fibres such as the hair, comprising the application to said keratin fibres of a composition as defined in claim 1.

14. Use of the cosmetic composition as defined in claim 1, for conditioning keratin fibres, in particular human keratin fibres such as the hair.

Description

EXAMPLES

[0445] In the examples that follow, all the amounts are indicated as weight percentages of active material relative to the total weight of the composition.

Example 1

[0446] Compositions A, B and C were prepared from the ingredients whose contents are indicated in the table below:

TABLE-US-00001 TABLE 1 Composition A Composition B Composition C Polyquaternium-67 0.8 0.9 1.1 Laureth-4 1.8 0.37 1.4 Ethoxylated (PEG- — 1.2 — 40) and hydrogenated castor oil Laureth-5 2.2 5.5 5.3 carboxylic acid Cocamidopropyl 1.9 2.6 2 betaine NaCl 1.1 0.7 — Water qs 100 qs 100 qs 100

[0447] Compositions A, B and C may be used as hair conditioner.

[0448] When applied to sensitized hair (SA20), it is observed that they afford disentangling; they leave the hair supple and smooth to touch.

[0449] Composition B was compared with a commercial hair conditioner, on sensitized hair washed beforehand with a commercial shampoo and rinsed:

[0450] 4 g of test composition are applied per half-head, and the hair is rinsed and then dried; six experts evaluate the hair under blind conditions.

[0451] The following results are obtained: [0452] composition B according to the invention affords novel galenics more at the surface by virtue of its foaming aspect, facilitating the distribution, with faster rinsing; [0453] on wet hair: hair treated with composition B according to the invention has a smoother feel with a coating that is more present, facilitating disentangling; [0454] on dry hair: hair treated with the composition of the invention is visually smoother; however, slightly less supple fibres are observed, the hair is less disentangled and not as light.

[0455] The composition according to the invention thus affords very good strength, leaving an impression of a head of hair that is more dense and less supple.

Example 2

[0456] Compositions D (invention) and E (comparative) were prepared from the ingredients whose contents are indicated in the table below:

TABLE-US-00002 TABLE 2 Composition D Composition E (invention) (comparative) Laureth-5 carboxylic acid 6.3 6.3 Cocamidopropyl betaine 3.8 3.8 Laureth-4 5 5 3-Aminopropyltriethoxysilane 2 2 Polyquaternium-67 1.8 — Polyquaternium-6 — 1.8 NaCl 1.2 1.2 Lactic acid 0.72 0.72 Preservatives qs qs pH agents qs pH5 qs pH5 Water qs 100 qs 100 Weight ratio Laureth-5 carboxylic 3.5 — acid/Polyquaternium-67

[0457] a) Protocol

[0458] Compositions D and E are applied to locks of hair at a rate of 0.4 grams per gram of hair, distributed in a homogeneous and standardized manner, from the roots to the ends (by kneading the strands for 15 seconds).

[0459] After a pause of 5 minutes, the hair is rinsed with water at 35° C. (flow rate 300l/h) for 10 seconds, and wrung out.

[0460] The hair is then dried for 15 minutes in an oven at 60° C.

[0461] Then the visual aspect of both compositions, their quality of use (rinseability) and cosmetic properties (lightness) are evaluated.

[0462] b) Visual Aspect

[0463] Comparative composition E presents a cloudy and opaque aspect, whereas composition D according to the invention is limpid and opalescent.

[0464] c) Quality of use: Rinseability

[0465] Each lock is placed vertically under a water tap (water temperature of 35° C.) with a flow rate of 2 litres/minutes, for 5 seconds. This corresponds to a 1.sup.st passage. This protocol is repeated 14 times.

[0466] After 15 rinses, the disappearance of the product is evaluated visually and tactilely.

[0467] Fibres treated with the comparative composition E have a very greasy and loaded touch and appearance,

[0468] Whereas, the fibres treated with composition D according to the invention have a clean touch.

[0469] The composition D according to invention has a significantly improved rinseability compared to the comparative composition E. Thus, the composition according to invention D makes it possible to reduce the rinsing time and the quantity of water necessary for optimal rinsing in comparison with the comparative composition.

[0470] d) Cosmetic property: lightness (fibres not weighed down)

[0471] The lightness of the hair was assessed visually and tactilely on dry hair.

[0472] The hair treated with composition D according to the invention is well individualized and appears flowing, without bundles, in contrast to the hair treated with comparative composition E.

[0473] The composition D according to the invention has improved the lightness of the hair, the fibres are significantly less heavy than when treated with the comparative composition E.