Surfactant compositions and formulations with a high oil content

1. A composition comprising:

A) 20 parts by weight to 67 parts by weight, of at least one substance selected from dialkyl sulfosuccinates and dialkyl methylsulfosuccinates,

B) 15 parts by weight to 40 parts by weight, of at least one amphoteric surfactant, and

C) 15 parts by weight to 40 parts by weight, of at least one anionic surfactant.

2. The composition according to claim 1 , wherein the dialkyl sulfosuccinate and/or dialkyl methylsulfosuccinate are selected from the group consisting of dialkyl sulfosuccinates and/or dialkyl methylsulfosuccinates in which the alkyl radicals each have 4 to 24 carbon atoms.

3. The composition according to claim 2 , wherein the amphoteric surfactant is selected from alkylbetaines, alkylamidoalkylbetaines, alkyl amphoacetates, alkyl amphodiacetates, alkyl amphopropionates, alkyl amphodipropionates, alkylsultaines, alkylhydroxysultaines, alkylamine oxides, alkyl amphoglycinates, alkyl iminodiacetates, alkyl iminodipropionates, alkyl amphopropylsulfonates, and also alkali metal, alkaline earth metal or ammonium salts of alkyl amphocarboxyglycinates and alkyl amphocarboxypropionates.

4. The composition according to claim 2 , wherein the anionic surfactant is selected from alkyl sulfates, alkyl ether sulfates, optionally alkoxylated sulfosuccinates, optionally alkoxylated methylsulfosuccinates, optionally alkoxylated sulfonates, optionally alkoxylated glycinates, optionally alkoxylated glutamates, optionally alkoxylated isethionates, optionally alkoxylated carboxylates, optionally alkoxylated anisates, optionally alkoxylated levulinates, optionally alkoxylated tartrates, optionally alkoxylated lactylates, optionally alkoxylated taurates, optionally alkoxylated alaninates, optionally alkoxylated phosphates, optionally alkoxylated sulfoacetates, optionally alkoxylated sulfosuccinates, optionally alkoxylated sarcosinates and optionally alkoxylated phosphonates.

5. The composition according to claim 1 , further comprising:

D) 0 parts by weight to 15 parts by weight, of at least one hydrophobic thickener.

6. The composition according to claim 5 , wherein the hydrophobic thickener is selected from reaction products of at least one fatty acid and/or at least one fatty acid ester, with at least one primary or secondary amine, and cationic surfactants in which, at a pH of 7 and 20° C., at least 90 mol % of the molecules have at least one positively charged group.

7. The composition according to claim 1 , further comprising a solvent.

8. A structured formulation comprising:

a composition according to claim 1 , and

E) at least one cosmetic oil in an amount of from 11% by weight to 74% by weight, where the percentages by weight refer to the total formulation.

9. The structured formulation according to claim 8 , wherein components A) to D) are present in an amount of from 5% by weight to 35% by weight, where the percentages by weight refer to the total formulation.

10. The structured formulation according to claim 8 , said formulation having a yield point of greater than 0.001 Pa.

11. The structured formulation according to claim 8 , wherein the cosmetic oil is selected from silicone oils, functionalized silicones, mineral oils, fatty acid esters, natural oils, animal oils, and mixtures thereof.

12. The structured formulation according to claim 8 , wherein said formulation is a cosmetic care and cleansing formulation.

13. A process for preparing structured formulations, said process comprising:

1) providing a composition comprising

A) 20 parts by weight to 67 parts by weight, of at least one substance selected from dialkyl sulfosuccinates and dialkyl methylsulfosuccinates,

B) 15 parts by weight to 40 parts by weight, of at least one amphoteric surfactant, and

C) 15 parts by weight to 40 parts by weight, of at least one anionic surfactant,

2) mixing the composition with

E) at least one cosmetic oil to give a structured formulation comprising the oil in an amount of from 11% by weight to 74% by weight, where the percentages by weight refer to the total formulation.

14. A process for preparing structured formulations, said process comprising:

a) providing a composition comprising

B) 15 parts by weight to 40 parts by weight, of at least one amphoteric surfactant,

C) 15 parts by weight to 40 parts by weight, of at least one anionic surfactant, and

D) 0 parts by weight to 15 parts by weight, of at least one hydrophobic thickener,

b) adding and mixing components A) and E) to the composition from process step a)

A) 20 parts by weight to 67 parts by weight, of at least one substance selected from dialkyl sulfosuccinates and dialkyl methylsulfosuccinates, and

E) at least one cosmetic oil in an amount of from 11% by weight to 74% by weight, where the percentages by weight for the cosmetic oil refer to the total formulation to be obtained, and

where the sum of the parts by weight of components A) to D) gives 100 parts by weight.