MILD COSMETIC CLEANSING COMPOSITION

• US 20140228268A1
• Filed: 04/18/2014
• Published: 08/14/2014
• Est. Priority Date: 10/20/2011
• Status: Active Grant

• Current Assignee: Innospec (Plant) Ltd. (Innospec Incorporated)
• Original Assignee: Henkel AG & Co KGaA
• Inventors: Hentrich, Dirk, Schroeder, Thomas, Fahl, Madlen, Meyer, Jens
• Granted Patent: US 9,216,147 B2
• Time in Patent Office: Days
• US Class Current: 510/127
• CPC Class Codes: A61K 8/37 Esters of carboxylic acids
• CPC Class Codes: A61K 8/41 Amines
• CPC Class Codes: A61K 8/442 substituted by amido group(s)
• CPC Class Codes: A61K 8/466 containing sulfonic acid derivatives; Salts
• CPC Class Codes: A61K 8/602 Glycosides, e.g. rutin
• CPC Class Codes: A61K 8/73 Polysaccharides
• CPC Class Codes: A61Q 19/10 Washing or bathing preparations
• CPC Class Codes: A61Q 5/02 Preparations for cleaning the hair

Abstract

A mild cosmetic cleansing agent includes in a suitable carrier a) 1 to 6 wt. % of at least one anionic surfactant of the following formula (I),

in which R¹ denotes a linear or branched, saturated or unsaturated alkyl residue having 6 to 30 carbon atoms, at least one of the residues R² to R⁵ denotes a C₁-C₄ alkyl residue, and the other residues independently of one another denote a hydrogen atom or a C₁-C₄ alkyl residue, and M⁺ denotes an ammonium, alkanolammonium or metal cation, b) 2 to 10 wt. % of at least one amphoteric and/or zwitterionic surfactant and c) 0.5 to 10 wt. % of at least one non-ionic surfactant and/or at least one non-ionic emulsifier, selected from at least one of the following groups of alkyl (oligo)glycosides, amine oxides and/or glycerol mono- and/or di(C₆-C₂₄) carboxylic acid esters, wherein the stated amounts relate to the total weight.

Claims

1. A mild cosmetic cleansing agent, including in a suitable carrier

a) 1 to 6 wt. % of at least one anionic surfactant of the following formula (I),

2. The mild cosmetic cleansing agent according to claim 1, wherein the surfactants/emulsifiers a), b) and c) are included in a weight ratio of (1-2):

(2-5);

(1-3).

3. The mild cosmetic cleansing agent according to claim 1, wherein the anionic surfactant according to formula (I) is characterized such that

R¹ denotes a linear or branched, saturated or unsaturated alkyl residue having 8 to 18 carbon atoms, and

at least one of the residues R² to R⁵ denotes a methyl residue, and the other residues denote a hydrogen atom.

4. The mild cosmetic cleansing agent according claim 1, wherein the anionic surfactant according to formula (I) is characterized such that

R¹ denotes a C₈, C₁₀, C₁₂, C₁₄, C₁₆ residue or mixtures of these fatty acid residues, such as are obtained when the fatty acid(s) is/are derived from natural oils such as for example coconut oil, and

one of the residues R² to R⁵ denotes a methyl residue, and the other residues denote a hydrogen atom.

5. The mild cosmetic cleansing agent according to claim 1, further comprising at least one compound of the following formulae (i) to (vii), in which the residue R denotes a straight-chain or branched, saturated or mono- or polyunsaturated alkyl or alkenyl residue having 7 to 23 carbon atoms (formulae (i) and (ii)) or a straight-chain or branched, saturated or mono- or polyunsaturated alkyl or alkenyl residue having 8 to 24 carbon atoms (formulae (iii) to (vii)):

6. The mild cosmetic cleansing agent according to claim 5, wherein the amphoteric and/or zwitterionic surfactants of formulae (iii), (v), (vi) and (vii) are included, in which the residue R is derived from coconut oil.

7. The mild cosmetic cleansing agent according to claim 1, wherein the non-ionic surfactant and/or non-ionic emulsifier includes at least one alkyl (oligo)glycoside of the general formula RO-[G]_x, in which R denotes an alkyl and/or alkenyl residue having 4 to 22 C atoms, G denotes a sugar residue having 5 or 6 C atoms and x denotes numbers from 1 to 10, and/or at least one amine oxide of one of the following formulae (II) or (III),

8. The mild cosmetic cleansing agent according to claim 5, wherein the agent includes, relative to its total weight,

a) 1.1 to 5 wt. % of at least one anionic surfactant of the aforementioned formula (I), in which the residue R¹ denotes a linear or branched, saturated or unsaturated alkyl residue having 8 to 18 carbon atoms, at least one of the residues R² to R⁵ denotes a methyl residue and the other residues each denote a hydrogen atom, and M⁺ denotes an alkali metal cation or an ammonium ion,

b) 2.5 to 8.5 wt. % of at least one amphoteric and/or zwitterionic surfactant of one of the aforementioned general formulae (iii), (v), (vi) or (vii), and

c) 0.75 to 8 wt. % of the at least one non-ionic surfactant and/or non-ionic emulsifier, being selected from the group consisting of formula (II), formula (III) or formula RO-[G]_x in which R denotes an alkyl and/or alkenyl residue having 4 to 22 C atoms, G denotes a sugar residue having 5 or 6 C atoms and x denotes numbers from 1 to 10

9. The mild cosmetic cleansing agent according to claim 1, further comprising at least one conditioning active ingredient selected from the group consisting of

protein hydrolysates,

cationic polymers,

vitamins,

vegetable oils,

glycerol.

10. The mild cosmetic cleansing agent according to claim 9, including at least one cationic polymer, being selected from the group consisting of cationic cellulose derivatives, hydrophobically modified cationic cellulose derivatives, cationic guar derivatives, and glycerol.

11. The mild cosmetic cleansing agent according to claim 1, further comprising at least one bitter principle having a molar mass of at least 250 g/mol and being soluble up to at least 10 mg/l in the cleansing agent at 20°

C.

12. The mild cosmetic cleansing agent according to claim 5, wherein the agent includes, relative to its total weight,

a) 1.1 to 5 wt. % of at least one anionic surfactant of the aforementioned formula (I), in which the residue R¹ denotes a linear or branched, saturated or unsaturated alkyl residue having 8 to 18 carbon atoms, at least one of the residues R² to R⁵ denotes a methyl residue and the other residues each denote a hydrogen atom, and M⁺ denotes an alkali metal cation or an ammonium ion,

b) 2.5 to 8.5 wt. % of at least one amphoteric and/or zwitterionic surfactant of one of the aforementioned general formulae (iii), (v), (vi) or (vii),

c) 00.75 to 8 wt. % of the at least one non-ionic surfactant and/or non-ionic emulsifier, being selected from the group consisting of formula (II), formula (III) or formula RO-[G]_x in which R denotes an alkyl and/or alkenyl residue having 4 to 22 C atoms, G denotes a sugar residue having 5 or 6 C atoms and x denotes numbers from 1 to 10

13. The mild cosmetic cleansing agent according to claim 1, wherein the agent includes less than 0.5 wt. % ethoxylated active ingredients.

14. The mild cosmetic cleansing agent according to claim 1, wherein the agent has a pH in the range from 4 to 5.5.