Composition comprising at least one anionic surfactant, at least one nonionic surfactant, at least one amphoteric surfactant, at least one cationic polymer and at least one amphoteric polymer

Abstract

The present invention relates to a composition for cleansing and conditioning keratin fibres, in particular human keratin fibers such as the hair, comprising one or more anionic surfactants, one or more nonionic surfactants in a content of at least 3% by weight relative to the total weight of the composition, one or more amphoteric surfactants in a content of at least 3% by weight relative to the total weight of the composition, one or more particular cationic polymers and one or more amphoteric polymers. The invention also relates to a process for cleansing and conditioning keratin fibres and also to a use involving said composition.

Claims

1. A composition comprising: (i) at least one anionic surfactant chosen from carboxylic alkyl ether anionic surfactants corresponding to the polyethoxylated carboxylic anionic surfactants of formula (I):
R.sub.1(OC.sub.2H.sub.4).sub.nOCH.sub.2COOA(I) wherein: R.sub.1 is chosen from a linear or branched C.sub.8-C.sub.22 alkyl or alkenyl group or mixture of groups, a (C.sub.8-C.sub.9)alkylphenyl group, or a group R.sub.2CONHCH.sub.2CH.sub.2, wherein R.sub.2 is a linear or branched C.sub.11-C.sub.21 alkyl or alkenyl group, n is an integer or decimal number that ranges from 2 to 24, and A is chosen from H, NH.sub.4, N.sub.a, K, Li, Mg, or a monoethanolamine or triethanolamine residue, (ii) at least one nonionic surfactant in a total amount of at least 3% by weight, relative to the total weight of the composition, (iii) at least one amphoteric surfactant in a total amount of at least 3% by weight, relative to the total weight of the composition, (iv) at least one cationic polymer with a cationic charge density of greater than or equal to 4 meq./g, and (v) at least one polymer chosen from amphoteric polymers and/or cationic polymers with a cationic charge density of less than 4 meq./g.

2. The composition according to claim 1, wherein the at least one anionic surfactant is a mixture of sulfate anionic surfactants chosen from C.sub.8-C.sub.14 alkyl ether sulfates, and carboxylic alkyl ether surfactants chosen from the polyethoxylated carboxylic anionic surfactants of formula (I):
R.sub.1(OC.sub.2H.sub.4).sub.nOCH.sub.2COOA(I), wherein: R.sub.1 is chosen from a linear or branched C.sub.8-C.sub.22 alkyl or alkenyl group or mixture of groups, a (C.sub.8-C.sub.9)alkylphenyl group, or a group R.sub.2CONHCH.sub.2CH.sub.2, wherein R.sub.2 is a linear or branched C.sub.11-C.sub.21 alkyl or alkenyl group, n is an integer or decimal number that ranges from 2 to 24, and A is chosen from H, NH.sub.4, Na, K, Li, Mg, or a monoethanolamine or triethanolamine residue.

3. The composition according to claim 1, wherein the at least one amphoteric surfactant is chosen from (C.sub.8-C.sub.20)alkylbetaines, (C.sub.8-C.sub.20)alkylsulfobetaines, (C.sub.8-C.sub.20)alkylamido(C.sub.3-C.sub.8)alkylbetaines, or (C.sub.8-C.sub.20)alkylamido(C.sub.6-C.sub.8)alkylsulfobetaines.

4. The composition according to claim 1, wherein the at least one nonionic surfactant is chosen from: saturated or unsaturated, linear or branched, oxyethylenated C.sub.8-C.sub.40 alcohols comprising from 1 to 100 mol of ethylene oxide, and comprising one or two fatty chains; saturated or unsaturated oxyethylenated vegetable oils comprising from 1 to 100 mol of ethylene oxide; (C.sub.8-C.sub.30)alkyl(poly)glucosides, which are optionally oxyalkylenated with 0 to 10 mol of ethylene oxide and comprising 1 to 15 glucose units; monoglycerolated or polyglycerolated C.sub.8 to C.sub.40 alcohols, comprising from 1 to 50 mol of glycerol; saturated or unsaturated, linear or branched, oxyalkylenated C.sub.8-C.sub.30 fatty acid amides; esters of saturated or unsaturated, linear or branched, C.sub.8-C.sub.30 acids and of polyethylene glycols; optionally oxyethylenated esters of saturated or unsaturated, linear or branched, C.sub.8-C.sub.30 acids and of sorbitol; or mixtures thereof.

5. The composition according to claim 1, wherein the at least one cationic polymer with a charge density of greater than or equal to 4 meq./g and the at least one cationic polymer with a cationic charge density of less than 4 meq./g are chosen from: (1) homopolymers or copolymers derived from acrylic or methacrylic esters or amides and comprising at least one of the units of formula (IX), (X), (XI) or (XII) below: ##STR00009## wherein: R.sub.3, which may be identical or different, is chosen from a hydrogen atom or a CH.sub.3 radical; A, which may be identical or different, is chosen from a linear or branched alkyl group of 1 to 6 carbon atoms or a hydroxyalkyl group of 1 to 4 carbon atoms; R.sub.4, R.sub.5 and R.sub.6, which may be identical or different, are each chosen from an alkyl group containing from 1 to 18 carbon atoms, a benzyl radical, or an alkyl group containing from 1 to 6 carbon atoms; R.sub.1 and R.sub.2, which may be identical or different, are each chosen from hydrogen, an alkyl group containing from 1 to 6 carbon atoms, methyl, or ethyl; X is chosen from an anion derived from a mineral or organic acid, a methosulfate anion, a halide, chloride, or bromide; (2) cyclopolymers of alkyldiallylamine or of dialkyldiallylammonium, chosen from homopolymers or copolymers comprising, as main constituent of the chain, units corresponding to formula (XIII) or (XIV): ##STR00010## wherein: k and t are equal to 0 or 1, the sum k+t being equal to 1; R.sub.9 is chosen from a hydrogen atom or a methyl radical; R.sub.7 and R.sub.8, independently of each other, are each chosen from an alkyl group having from 1 to 6 carbon atoms, a hydroxyalkyl group in which the alkyl group contains 1 to 5 carbon atoms, a lower (C.sub.1-C.sub.4) amidoalkyl group; or R.sub.7 and R.sub.8 may denote, together with the nitrogen atom to which they are attached, heterocyclic groups, piperidyl, or morpholinyl; Y.sup. is an anion chosen from bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate, or phosphate; (3) the quaternary diammonium polymer containing repeating units corresponding to formula (XV): ##STR00011## wherein in formula (XV): R.sub.10, R.sub.11, R.sub.12 and R.sub.13, which may be identical or different, are each chosen from aliphatic, alicyclic, or arylaliphatic radicals containing from 1 to 6 carbon atoms or lower hydroxyalkylaliphatic radicals, or alternatively R.sub.10, R.sub.11, R.sub.12 and R.sub.13, together or separately, constitute, with the nitrogen atoms to which they are attached, heterocycles optionally containing a second heteroatom other than nitrogen, or alternatively R.sub.10, R.sub.11, R.sub.12 and R.sub.13 represent a linear or branched C.sub.1-C.sub.6 alkyl radical substituted with a nitrile, ester, acyl or amide group or a group COOR.sub.14-D or CONHR.sub.14-D where R.sub.14 is an alkylene and D is a quaternary ammonium group; A1 and B1 represent polymethylene groups containing from 2 to 8 carbon atoms, which may be linear or branched and saturated or unsaturated and may contain, bonded to or intercalated in the main chain, at least one aromatic ring, or at least one oxygen or sulfur atom, or sulfoxide, sulfone, disulfide, amino, alkylamino, hydroxyl, quaternary ammonium, ureido, amide, or ester group, and X.sup. is an anion derived from a mineral or organic acid; A1, R.sub.10 and R.sub.12 can form, with the two nitrogen atoms to which they are attached, a piperazine ring; in addition, if A1 denotes a linear or branched, saturated or unsaturated alkylene or hydroxyalkylene radical, B1 can also denote a group (CH.sub.2)n-CO-D-OC(CH.sub.2)n- in which D denotes: a) a glycol residue of formula: OZO, where Z denotes a linear or branched hydrocarbon-based radical or a group corresponding to one of the following formulae:
(CH.sub.2CH.sub.2O)x-CH.sub.2CH.sub.2
[CH.sub.2CH(CH.sub.3)O]y-CH.sub.2CH(CH.sub.3), where x and y denote an integer from 1 to 4, representing a defined and unique degree of polymerization or any number from 1 to 4 representing an average degree of polymerization; b) a bis-secondary diamine residue or a piperazine derivative; c) a bis-primary diamine residue of formula: NHYNH, where Y denotes a linear or branched hydrocarbon-based radical, or else the divalent radical CH.sub.2CH.sub.2SSCH.sub.2CH.sub.2; d) a ureylene group of formula: NHCONH; (4) polyquaternary ammonium polymers formed from repeating units of formula (XVII): ##STR00012## wherein: p denotes an integer ranging from 1 to 6 approximately, D may be nothing or may represent a group (CH.sub.2).sub.rCO in which r denotes a number equal to 4 or 7, and X.sub. is an anion; or (5) quaternary polymers of vinylpyrrolidone and of vinylimidazole.

6. The composition according to claim 1, wherein the at least one cationic polymer with a charge density of greater than or equal to 4 meq./g is chosen from dialkyldiallylammonium halide homopolymers.

7. The composition according to claim 1, wherein the at least one amphoteric polymer comprises the repetition: (i) of at least one unit from an acrylamide-type monomer, (ii) of at least one unit from an acrylamidoalkyltrialkylammonium-type monomer, (iii) of at least one unit derived from a monomer of (meth)acrylic acid type.

8. The composition according to claim 7, wherein the at least one unit derived from a monomer of acrylamide type in the at least one amphoteric polymer is chosen from units having the structure (XVIII) below: ##STR00013## wherein: R.sub.1 is chosen from H or CH.sub.3, R.sub.2 is chosen from an amino, dimethylamino, tert-butylamino, or dodecylamino radical, or NHCH.sub.2OH.

9. The composition according to claim 7, wherein the at least one unit derived from a monomer of acrylamidoalkyltrialkylammonium type in the at least one amphoteric polymer is chosen from units having the structure (XIX) below: ##STR00014## wherein: R.sub.3 is chosen from H or CH.sub.3, R.sub.4 denotes a (CH.sub.2).sub.k group with k an integer ranging from 1 to 6; R.sub.5 and R.sub.6 and R.sub.7, which may be identical or different, each denote an alkyl group containing from 1 to 4 carbon atoms; Y.sup. is an anion chosen from bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate, or phosphate.

10. The composition according to claim 7, wherein the at least one unit derived from a monomer of (meth)acrylic acid type in the at least one amphoteric polymer is chosen from units of formula (XX): ##STR00015## wherein: R.sub.8 is chosen from H or CH.sub.3, R.sub.9 is chosen from a hydroxyl radical or a radical NHC(CH.sub.3).sub.2CH.sub.2SO.sub.3H.

11. The composition according to claim 1, wherein the at least one amphoteric polymer comprises: from 30 mol % to 70 mol % of units derived from a monomer of acrylamide type, from 10 mol % to 60 mol % of units derived from a monomer of acrylamidoalkyltrialkylammonium type, and from 1 mol % to 20 mol % of units derived from a monomer of (meth)acrylic acid type.

12. The composition according to claim 1, wherein the at least one cationic polymer with a cationic charge density of less than 4 meq./g is chosen from copolymers of dimethyldiallylammonium halides and of acrylamide.

13. A process for washing and conditioning keratin fibres, the process comprising: applying to said fibres a composition comprising: (i) at least one anionic surfactant chosen from carboxylic alkyl ether anionic surfactants corresponding to the polyethoxylated carboxylic anionic surfactants of formula (I):
R.sub.1(OC.sub.2H.sub.4).sub.nOCH.sub.2COOA(I) wherein: R.sub.1 is chosen from a linear or branched C.sub.8-C.sub.22 alkyl or alkenyl group or mixture of groups, a (C.sub.8-C.sub.9)alkylphenyl group, or a group R.sub.2CONHCH.sub.2CH.sub.2, wherein R.sub.2 is a linear or branched C.sub.11-C.sub.21 alkyl or alkenyl group, n is an integer or decimal number that ranges from 2 to 24, and A is chosen from H, NH.sub.4, N.sub.a, K, Li, Mg, or a monoethanolamine or triethanolamine residue, (ii) at least one nonionic surfactant in a total amount of at least 3% by weight, relative to the total weight of the composition, (iii) at least one amphoteric surfactant in a total amount of at least 3% by weight, relative to the total weight of the composition, (iv) at least one cationic polymer with a cationic charge density of greater than or equal to 4 meq./g, and (v) at least one polymer chosen from amphoteric polymers and/or cationic polymers with a cationic charge density of less than 4 meq./g.

14. A process for washing and conditioning hair, the process comprising: applying to said hair a composition comprising: (i) at least one anionic surfactant chosen from carboxylic alkyl ether anionic surfactants corresponding to the polyethoxylated carboxylic anionic surfactants of formula (I):
R.sub.1(OC.sub.2H.sub.4).sub.nOCH.sub.2COOA(I) wherein: R.sub.1 is chosen from a linear or branched C.sub.8-C.sub.22 alkyl or alkenyl group or mixture of groups, a (C.sub.8-C.sub.9)alkylphenyl group, or a group R.sub.2CONHCH.sub.2CH.sub.2, wherein R.sub.2 is a linear or branched C.sub.11-C.sub.21 alkyl or alkenyl group, n is an integer or decimal number that ranges from 2 to 24, and A is chosen from H, NH.sub.4, N.sub.a, K, Li, Mg, or a monoethanolamine or triethanolamine residue, (ii) at least one nonionic surfactant in a total amount of at least 3% by weight, relative to the total weight of the composition, (iii) at least one amphoteric surfactant in a total amount of at least 3% by weight, relative to the total weight of the composition, (iv) at least one cationic polymer with a cationic charge density of greater than or equal to 4 meq./g, and (v) at least one polymer chosen from amphoteric polymers and/or cationic polymers with a cationic charge density of less than 4 meq./g.

Description

I. EXAMPLES

(1) The cosmetic compositions according to the invention are prepared from the ingredients indicated in the table below, the amounts of which are expressed as weight percentages relative to the total weight of the composition.

(2) TABLE-US-00001 A B C D E F G H Comp Alkylpolyglucoside 5.1 5.67 4 Laureth-12 5 5 4 4 4 Laureth-4 5 5 5 1 1 1 1 Polysorbate 20 5 Carboxylic acid 6.3 6.3 6.3 6 6 6 0.9 1 6 Laureth-5 Cocamidopropyl betaine 3.8 3.8 3.8 7 7 7 6.3 7 7 Sodium laureth sulfate 1.75 1.75 1.75 7 7 9 10 7 Sodium (C.sub.14-C.sub.16)olefin 7 sulfonate Polyquaternium-6 1 1 0.5 0.5 1 0.5 0.5 0.5 0.75 Polyquaternium-53 0.5 0.5 0.25 0.25 0.5 0.25 0.25 0.25 Sodium chloride 1 1 0.7 0.7 0.7 1 0.5 0.7 Salicylic acid 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 0.2 Sodium benzoate 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Sodium hydroxide/citric qs pH = qs pH = qs pH = qs pH = qs pH = qs pH = qs pH = qs pH = qs pH = acid 5 0.5 5 0.5 5 0.5 5 0.5 6 0.5 6 0.5 5 0.5 5 0.5 5 0.5 Water qs 100 qs 100 qs 100 qs 100 qs 100 qs 100 qs 100 qs 100 qs 100

(3) The compositions are applied to locks of moderately sensitized hair (SA20) at a rate of 0.37 g of composition per gram of hair. They are then worked with the fingers five times and then rinsed ten times under a tap at a flow rate of 4 l/minute with water at 38 C.

(4) A panel of 5 experts compared the feel and the ease of the disentangling on wet hair, of locks treated with formulations A to H relative to those treated with the comparative formulation.

(5) All the experts noted a better cosmetic quality of the feel and also better ease of the disentangling for compositions A to H compared with the comparative formula.

(6) The compositions according to the invention are prepared from the ingredients indicated in the table below, the amounts of which are expressed as weight percentages relative to the total weight of the composition.

(7) TABLE-US-00002 Refer- Refer- ence 1 ence 2 A Lauryl ether carboxylic acid (4.5 OE) 6 6 6 Cocoylamidopropylbetaine 7 7 7 Oxyethylenated lauric acid (4 OE) 1 1 1 Oxyethylenated (12 EO) lauryl 4 4 4 alcohol Sodium lauryl ether sulfate 7 7 7 Polydimethyldiallylammonium 0.75 0.5 chloride Polyquaternium-6 Acrylic acid/MAPTAC/acrylamide 0.75 0.25 terpolymer Polyquaternium-53 Sodium chloride 0.8 0.8 0.8 Sodium benzoate 0.5 0.5 0.5 Salicylic acid 0.2 0.2 0.2 Citric acid qs pH 4.7 qs pH 4.7 qs pH 4.7 Water qs 100 qs 100 qs 100

(8) The compositions are applied to locks of moderately sensitized hair (SA20) at a rate of 0.37 g of formulation/g of hair.

(9) They are then worked with the fingers five times and then rinsed ten times under a tap at a flow rate of 41/minute with water at 38 C.

(10) A panel of 5 experts compared the feel and the ease of the disentangling on wet hair, of locks treated with formulation A relative to those treated with the comparative formulations (Reference 1/Reference 2).

II. EXAMPLESA2 VS REFERENCE 3/4

(11) a. Preparation of the Compositions

(12) The following compositions are prepared from the ingredients indicated in the table below, the amounts of which are expressed as weight percentages relative to the total weight of the composition.

(13) TABLE-US-00003 Refer- Refer- ence 3 ence 4 A2 Oxyethylenated lauric acid 5 5 5 (4 OE) Polysorbate 20 5 5 5 Laureth-5 carboxylic acid 6.3 6.3 6.3 Cocamidopropylbetaine 3.8 3.8 3.8 Sodium laureth sulfate 1.75 1.75 1.75 Polydimethyldiallylammoni- 1 1 um chloride Polyquaternium-6 Polyquaternium-53 0.5 0.5 Sodium chloride 0.5 0.5 0.5 Salicylic acid 0.2 0.2 0.2 Sodium benzoate 0.5 0.5 0.5 Sodium hydroxide/ qs qs qs Citric acid pH 5 0.5 pH 5 0.5 pH 5 0.5 Water qs 100 qs 100 qs 100

(14) The compositions have a clear appearance, at the time of manufacture (t=t0), at room temperature.

(15) The compositions are applied to locks of moderately sensitized hair (SA20) at a rate of 0.37 g of formulation/g of hair.

(16) They are then worked with the fingers five times and then rinsed ten times under a tap at a flow rate of 4 l/minute with water at 38 C.

(17) b. Results

(18) A panel composed of 5 testers compared the feel on wet hair, of locks treated with formulation A2 relative to those treated with the comparative compositions (Reference 3/Reference 4).

(19) Each tester evaluated the feel by classifying each of the locks treated with the comparative compositions (Reference 3/Reference 4) and the composition according to the invention (composition A2).

(20) TABLE-US-00004 Refer- Refer- ence 3 ence 4 A2 Tester 1 2 3 1 Tester 2 2 3 1 Tester 3 2 3 1 Tester 4 2 3 1 Tester 5 2 3 1 Overall classification 2 3 1

(21) The composition according to the invention (Composition A2) was systematically classified by the panel of testers as giving a smoother feel to the locks of treated hair than the comparative compositions (Reference 3/Reference 4).

III. EXAMPLEA3 VS REFERENCE 5/6

(22) The following compositions are prepared from the ingredients indicated in the table below, the amounts of which are expressed as weight percentages relative to the total weight of the composition.

(23) TABLE-US-00005 Refer- Refer- ence 5 ence 6 A3 Laureth-12 4 4 4 Oxyethylenated lauric acid 6 6 6 (4 OE) Laureth-5 carboxylic acid 6.3 6.3 6.3 Cocamidopropylbetaine 3.8 3.8 3.8 Sodium laureth sulfate 1.75 1.75 1.75 Polydimethyldiallylammoni- 1 1 um chloride Polyquaternium-6 Polyquaternium-53 0.5 0.5 Sodium chloride 0.5 0.5 0.5 Salicylic acid 0.2 0.2 0.2 Sodium benzoate 0.5 0.5 0.5 Sodium hydroxide/ qs qs qs Citric acid pH 5 0.5 pH 5 0.5 pH 5 0.5 Water qs 100 qs 100 qs 100

(24) The compositions have a clear appearance, at the time of manufacture (t=t0), at room temperature.

(25) The compositions are applied to locks of moderately sensitized hair (SA20) at a rate of 0.37 g of formulation/g of hair.

(26) They are then worked with the fingers five times and then rinsed ten times under a tap at a flow rate of 4 l/minute with water at 38 C.

(27) c. Results

(28) A panel composed of 5 experts compared the feel on wet hair, of locks treated with formulation A3 relative to those treated with the comparative compositions (Reference 5/Reference 6).

(29) Each expert evaluated the feel by classifying each of the locks treated with the comparative compositions (Reference 5/Reference 6) and the composition according to the invention (composition A3).

(30) TABLE-US-00006 Refer- Refer- ence 5 ence 6 A3 Tester 1 2 3 1 Tester 2 2 3 1 Tester 3 2 3 1 Tester 4 2 3 1 Tester 5 2 3 1 Overall classification 2 3 1

(31) The composition according to the invention (Composition A3) was systematically classified by the panel of testers as giving a smoother feel to the locks of treated hair than the comparative compositions (Reference 5/Reference 6).

IV. EXAMPLEA4 VS REFERENCE 7/8

(32) The following compositions are prepared from the ingredients indicated in the table below, the amounts of which are expressed as weight percentages relative to the total weight of the composition.

(33) TABLE-US-00007 Refer- Refer- ence 7 ence 8 A4 Laureth-12 4 4 4 Oxyethylenated lauric acid 1 1 1 (4 OE) Laureth-5 carboxylic acid 6 6 6 Coco betaine 7 7 7 Sodium (C.sub.14-C.sub.16)olefin 7 7 7 sulfonate Polydimethyldiallylammoni- 0.5 0.5 um chloride Polyquaternium-6 Polyquaternium-53 0.25 0.25 Sodium chloride 0.7 0.7 0.7 Salicylic acid 0.2 0.2 0.2 Sodium benzoate 0.5 0.5 0.5 Sodium hydroxide/ qs qs qs Citric acid pH 5 0.5 pH 5 0.5 pH 5 0.5 Water qs 100 qs 100 qs 100

(34) The compositions have a clear appearance, at the time of manufacture (t=t0), at room temperature.

(35) The compositions are applied to locks of moderately sensitized hair (SA20) at a rate of 0.37 g of formulation/g of hair.

(36) They are then worked with the fingers five times and then rinsed ten times under a tap at a flow rate of 4 l/minute with water at 38 C.

(37) d. Results

(38) A panel composed of 5 testers compared the feel on wet hair, of locks treated with formulation A4 relative to those treated with the comparative compositions (Reference 7/Reference 8).

(39) Each tester evaluated the feel by classifying each of the locks treated with the comparative compositions (Reference 7/Reference 8) and the composition according to the invention (composition A4).

(40) TABLE-US-00008 Refer- Refer- ence 7 ence 8 A4 Tester 1 2 3 1 Tester 2 2 3 1 Tester 3 2 3 1 Tester 4 2 3 1 Tester 5 2 3 1 Overall classification 2 3 1

(41) The composition according to the invention (Composition A4) was systematically classified by the panel of testers as giving a smoother feel to the locks of treated hair than the comparative compositions (Reference 7/Reference 8).

V. EXAMPLEA5

(42) The following composition according to the invention is prepared from the ingredients indicated in the table below, the amounts of which are expressed as weight percentages relative to the total weight of the composition.

(43) TABLE-US-00009 A4 Alkyl polyglucoside 5.1 Oxyethylenated lauric acid (4 OE) 1 Laureth-5 carboxylic acid 6 Cocamidopropylbetaine 7 Sodium laureth sulfate 7 Polydimethyldiallylammonium 0.75 chloride Polyquaternium-6 Polyquaternium-53 Sodium chloride 0.7 Salicylic acid 0.2 Sodium benzoate 0.5 Sodium hydroxide/ qs Citric acid pH 5 0.5 Water qs 100

VI. EXAMPLEA6 VS REFERENCE 9/10

(44) The following compositions are prepared from the ingredients indicated in the table below, the amounts of which are expressed as weight percentages relative to the total weight of the composition.

(45) TABLE-US-00010 Refer- Refer- ence 9 ence 10 A6 Lauryl ether carboxylic acid (4.5 OE) 6 6 6 Cocoylamidopropylbetaine 7 7 7 Oxyethylenated lauric acid (4 OE) 1 1 1 Oxyethylenated lauryl alcohol (12 4 4 4 OE) Sodium lauryl ether sulfate 7 7 7 Polydimethyldiallylammonium 0.75 0.5 chloride Polyquaternium-6 Dimethyldiallylammonium 0.75 0.25 chloride/acrylamide copolymer Polyquaternium-7 Sodium chloride 0.8 0.8 0.8 Sodium benzoate 0.5 0.5 0.5 Salicylic acid 0.2 0.2 0.2 Citric acid qs pH 4.7 qs pH 4.7 qs pH 4.7 Water qs 100 qs 100 qs 100

(46) The compositions are applied to locks of moderately sensitized hair (SA20) at a rate of 0.37 g of composition per gram of hair. They are then worked with the fingers five times and then rinsed ten times under a tap at a flow rate of 4 l/minute with water at 38 C.

(47) A panel of 5 experts compared the feel and the ease of the disentangling on wet hair, of locks treated with formulation A relative to those treated with the comparative compositions.