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1. (WO2019009220) SILICONE-FREE COMPOSITION FOR KERATIN FIBERS IN THE FORM OF ULTRA-FINE O/W EMULSION
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CLAIMS

A composition for keratin fibers, preferably hair, in the form of an O/W emulsion having oil droplets dispersed in an aqueous phase, the composition comprising at least one surfactant, wherein the oil droplets comprise at least one non-silicone oil, the number-average diameter of the oil droplets is less than 200 nm, and the composition does not comprise silicone or comprises less than 0.001% by weight of silicone relative to the total weight of the composition.

The composition according to Claim 1 , wherein the non-silicone oil is selected from the group consisting of oils of plant or animal origin, synthetic oils, hydrocarbon oils, and fatty alcohols, and mixtures thereof.

The composition according to Claim 1 or 2, wherein the non-silicone oil is a plant oil such as a triglyceride oil.

The composition according to any one of Claims 1 to 3, wherein the non-silicone oil is present in an amount ranging from 0.01 to 20% by weight, preferably from 0.05 to 10% by weight, and more preferably 0.2 to 5% by weight, relative to the total weight of the composition.

The composition according to any one of Claims 1 to 4, wherein the surfactant is selected from the group consisting of anionic, cationic, nonionic, and amphoteric surfactants, and mixtures thereof.

The composition according to any one of Claims 1 to 5, wherein the surfactant is selected from the group consisting of monooxyalkylenated, polyoxyalkylenated, monoglycerolated, and polyglycerolated nonionic surfactants, such as

polyoxyethylenated nonionic surfactants.

The composition according to any one of Claims 1 to 6, wherein the surfactant is present in an amount ranging from 10 to 70% by weight, preferably from 20 to 60% by weight, and more preferably 30 to 50% by weight, relative to the total weight of the composition.

The composition according to any one of Claims 1 to 7, wherein the number-average diameter of the oil droplets is less than 180 nm, preferably less than 160 nm, and more preferably less than 140 nm.

The composition according to any one of Claims 1 to 8, wherein the number-average diameter of the oil droplets is more than 1 nm, preferably more than 5 nm, and more preferably more than 10 nm, and in particular more than 20 nm.

The composition according to any one of Claims 1 to 9, wherein the composition is a cleansing composition for hair such as a shampoo and a hair conditioner.

The composition according to any one of Claims 1 to 10, wherein the composition has a transparent appearance or a translucent appearance, preferably a transparent appearance.

12. The composition according to any one of Claims 1 to 11, wherein the composition does not comprise silicone.

13. A method for preparing a composition for keratin fibers, preferably hair, in the form of an O/W emulsion having oil droplets dispersed in an aqueous phase wherein the number-average diameter of the oil droplets is less than 200 nm, comprising:

- mixing at least one non-silicone oil and at least one surfactant;

- diluting the mixture with water so as to form the O/W emulsion; and

- optionally adding to the composition at least one additional agent selected from the group consisting of surfactants, condition agents, preservatives, pH adjusters, and other customary adjuvants used in the field of compositions for treating keratin fibers,

wherein the composition does not comprise silicone or comprises less than 0.001% by weight of silicone relative to the total weight of the composition.

14. A cosmetic process for treating keratin fibers, preferably cleansing hair, comprising:

- applying the composition according to any one of Claims 1 to 12 to the keratin fibers; and

- rinsing the treated keratin fibers with a sufficient amount of water.