L'oreal

Laure Fageon

Didier Candau

Raluca Lorant

Angelina Roudot

Karl Boutelet

Carole Guiramand

Angélina Roudot

Alexandra Batista

Elodie Valverde

Mathilde Lemal

Anne Falip

Aurélie Pillot

Cosmetic emulsion containing a gemini surfactant and a lipophilic polymer The invention relates to a composition in the form of an emulsion, in particular in the form of an oil-in-water emulsion, comprising a gemini surfactant having a specific chemical structure with at least two fatty amide groups and at least one lipophilic polymer comprising at least hydroxyethyl acrylate units and acrylate units bearing a lipophilic group, wherein the weight ratio of the sum of all the hydroxyethyl acrylate units to the sum of all the acrylate units bearing a lipophilic group ranges from 1:30 to 1:1 and wherein the lipophilic polymer has a number-average molecular weight Mn ranging from 2000 to 9000 g/mol. The composition in accordance with the invention makes it possible to obtain a cosmetic emulsion having an increased sun protection factor, while at the same time having good cosmetic properties, such as a non-greasy and non-tacky feel, while at the same time being stable, in particular from the physicochemical viewpoint.

Cosmetic emulsion containing a gemini surfactant and a lipophilic polymer

Emulsion comprising an anionic acrylic copolymer and a lipophilic polymer A subject of the present invention is a composition in the form of an emulsion, preferably in the form of an oil-in-water emulsion, comprising at least one hydrophilic gelling polymer chosen from anionic acrylic copolymers and at least one lipophilic polymer comprising at least hydroxyethyl acrylate units and acrylate units bearing a lipophilic group, wherein the weight ratio of the sum of all the hydroxyethyl acrylate units to the sum of all the acrylate units bearing a lipophilic group ranges from 1:30 to 1:1 and wherein the lipophilic polymer has a number-average molecular weight Mn ranging from 2000 to 9000 g/mol. The composition in accordance with the invention makes it possible to obtain emulsions which are homogeneous (the emulsion is macroscopically smooth and has no grains, after storage in a pot for 24 hours at ambient temperature (25&#xb0; C.)), which have a variable viscosity (very fluid to very thick), which are stable over time, and which have good sensory properties, in particular which are non-tacky, non-shiny and non-greasy on the skin.

Emulsion comprising an anionic acrylic copolymer and a lipophilic polymer

The present invention relates to a composition comprising, in a cosmetically acceptable medium, at least one continuous oil phase, characterized in that the oil phase comprises a) at least one non-volatile non-cyclic silicone oil with a viscosity at 25&#xb0; C. ranging from 4 to 5000 mm/s, better still from 4 to 1000 mm/s and even better still from 4 to 200 mm/s and b) at least one lipophilic organic UV-screening agent; and c) hydrophobic silica aerogel particles with a specific surface area per unit of mass (SM) ranging from 200 to 1500 m/g, preferably from 600 to 1200 m/g and better still from 600 to 800 m/g, and a size, expressed as the volume mean diameter (D[0.5]), of less than 1500 &#x3bc;m, preferably ranging from 1 to 30 &#x3bc;m, more preferentially from 5 to 25 &#x3bc;m, better still from 5 to 20 &#x3bc;m and even better still from 5 to 15 &#x3bc;m. The invention also relates to a cosmetic process for caring for and/or making up human keratin materials, especially bodily or facial skin or the hair, comprising at least the application to the surface of the keratin material of at least one composition as defined previously.

Composition with a continuous oil phase containing at least one lipophilic organic UV-screening agent and hydrophobic silica aerogel particles

The present invention relates to a composition for topical application, comprising at least one aqueous phase, at least one superabsorbent polymer and at least one lamellar or platelet-shaped matting mineral filler. A subject of the invention is also a cosmetic treatment process for keratin materials, which consists in applying to the keratin materials a composition as defined above, and also the use of this composition in the cosmetic or dermatological field, and in particular for caring for, protecting and/or making up bodily or facial skin, or for haircare. The composition according to the invention has both a matt appearance throughout all the steps of its use, from the appearance of the product up to the finished skin, and a comfortable sensation throughout its use, from the application to the total penetration of the product.

Cosmetic composition comprising a superabsorbent polymer and a lamellar or platelet-shaped matting mineral filler

A cosmetic composition in the form of an emulsion comprising at least one aqueous phase and at least one fatty phase, at least one superabsorbent polymer and at least one surfactant of formula (I): Wherein: Rand Rdenote, independently of each other, an alkyl radical containing from 1 to 25 carbon atoms; Rdenotes a spacer formed from a linear or branched alkylene chain containing from 1 to 12 carbon atoms; X and Y denote, independently of each other, a group &#x2014;(CHO)&#x2014;(CHO)Z, in which Z denotes a hydrogen atom or a radical &#x2014;CH&#x2014;COOM, &#x2014;SOM, &#x2014;P(O)(OM), &#x2014;CH&#x2014;SOM, &#x2014;CH&#x2014;SOM or &#x2014;CH(CHOH)CHOH, in which M, M' represent H or an alkali metal, alkaline-earth metal, ammonium or alkanolammonium ion, a ranges from 0 to 15, b ranges from 0 to 10, and the sum of a+b ranges from 1 to 25; and n ranges from 1 to 10 is provided.

Composition comprising a superabsorbent polymer and a gemini surfactant

The present invention thus relates to a solid composition, in particular in the form of a loose or compact powder, comprising, in a cosmetically acceptable medium: a) at least one pulverulent phase; b) at least one lipophilic organic UV screening agent characterized in that the pulverulent phase comprises at least aerogel particles of hydrophobic silica exhibiting a specific surface per unit of weight (S) ranging from 200 to 1500 m/g, preferably from 600 to 1200 m/g and better still from 600 to 800 m/g, and a size, expressed as volume-average diameter (D[0.5]), of less than 1500 &#x3bc;m and preferably ranging from 1 to 30 &#x3bc;m, more preferably from 5 to 25 &#x3bc;m, better still from 5 to 20 &#x3bc;m and even better still from 5 to 15 &#x3bc;m. It also relates to a cosmetic method for caring for and/or making up human keratinous substances, in particular the skin of the body or of the face or the hair, comprising at least the application, to the surface of the keratinous substance, of at least one composition as defined above.

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Paris, France

Laure Fageon