L'oreal

Clariant Corporation

Florence L'Alloret

Jean-Thierry Simonnet

Didier Candau

Lydie Bressy

Herve Richard

Odile Aubrun-Sonneville

Zohra Moujahed

Henri Samain

Xavier Marat

Pierre Maroy

Guillaume Cassin

Volker Frenz

Angelina Roudot

Julie Grumelard

Aranka Tardi

Barbara Winkler

Paula Cziryak

Cecile Fiandino

Reinhard J Oswald

Juergen Tonhauser

Julie Songeur-Geney

Dietmar Huglin

Anne Falip

Fiandino Cécile

The present patent application relates to a composition for topical application in the form of an oil-in-water emulsion comprising an oily phase dispersed in an aqueous phase, characterized in that it comprises at least one noncrosslinked amphiphilic polymer, the globules of the said emulsion exhibiting a mean size ranging from 15 to 500 microns and the oily phase being present in an amount of less than 35% by weight, with respect to the total weight of the composition.

Oil-in-water emulsion comprising an amphiphilic polymer

The present invention relates to a cosmetic and/or dermatological composition comprising in a physiologically acceptable medium at least one merocyanine derivative of formula (1) or (2) and/or its E,E-, E,Z- or Z,Z-geometrical isomer forms: comprising specific polar groups consisting of hydroxyl- and ether-functionalities. Another object of the present invention relates to a cosmetic process for controlling and/or improving the darkening of the skin under exposure to UV radiation and the homogeneity of the colour of the complexion which comprises the application onto the skin of a cosmetic composition as above defined. Another object of the present invention relates to a cosmetic process for protecting the keratinic materials and particularly the skin against photo-ageing which comprises the application onto the keratinic material of a cosmetic composition as above defined. 

Cosmetic and/or dermatological composition containing a merocyanine derivative comprising specific polar groups consisting of hydroxyl- and ether-functionalities

A composition for topical application, in the form of an oil-in-water emulsion, containing at least one nonionic emulsifier with a melting point of less than 45&#xb0; C. and at least one 2-acrylamido-2-methylpropanesulfonic acid polymer. The composition shows very good stability.

Oil-in-water emulsion containing an amphiphilic polymer

The present invention relates to a composition in the form of an emulsion of the oil-in-water type formed of oily globules which are each provided with a lamellar liquid crystal coating and which are dispersed in an aqueous phase, wherein it has a pH ranging from 3 to 5.5 and in that it contains at least one lipophilic surface-active agent with an HLB ranging from 2 to 5, at least one hydrophilic surface-active agent with an HLB ranging from 8 to 12 and at least one amphiphilic compound of ionic nature at a pH ranging from 3 to 5.5.

Oil-in-water emulsion

The present invention relates to a composition comprising, in a cosmetically acceptable carrier, at least one UV screening system, characterized in that it comprises: In some embodiments, the composition also includes:

Composition comprising a screening agent of the lipophilic 2-hydroxybenzophenone type and a silicon-compromising s-triazine substituted by at least two alkylaminobenzoate groups

The present invention relates to a method for the cosmetic treatment of the skin, comprising the application, to the skin:

Cosmetic treatment method using a compound that can be condensed in situ and a UV-radiation-filtering agent

The invention concerns a polymer comprising water soluble units and LCST units consisting of ethylene oxide and propylene oxide random copolymers, or one of its salts. The invention also concerns an aqueous composition in particular thickened, even gelled, comprising such a polymer or one of its salts and an aqueous phase.

Polymer comprising water soluble units and LCST units, and aqueous composition comprising same

The invention relates to a composition preferably useful for topical application in the form of an oil-in-water emulsion comprising, in a physiologically acceptable medium, an oily phase dispersed in an aqueous phase, containing at least one lipophilic emulsifier and at least one water-soluble or water-dispersible amphiphilic polymer, which may be obtained from 2-acrylamido-2-methylpropanesulphonic acid units and from hydrophobic monomers comprising an oxyalkylene chain.

Composition containing an amphiphilic polymer, uses thereof

Polymer comprising water-soluble units and LCST units, and aqueous composition comprising it

A method of lowering the surface tension or the interface tension of water in cosmetic compositions comprising at least one cosmetic or dermatological adjuvant, the method comprising adding a polymer comprising water-soluble units and units with an LCST, wherein the LCST units an have in water a demixing temperature of from 5 to 40&#xb0; C. for a concentration of 1% by mass is used, the polymer being present in a concentration such that the gel point of the aqueous phase is from 5 to 40&#xb0; C., to ensure the stability of the dispersions at temperatures from 4&#xb0; C. to 50&#xb0; C.

Foaming emulsions and foaming compositions containing a polymer comprising water-soluble units and units with an LCST, especially for cosmetic uses

Cosmetic dispersions comprising an aqueous phase and an oily phase, the aqueous phase containing a polymer comprising water-soluble units and units with an LCST, wherein the LCST units an have in water a demixing temperature of from 5 to 40&#xb0; C. for a concentration of 1% by mass is used, the polymer being present in a concentration such that the gel point of the aqueous phase is from 5 to 40&#xb0; C., to ensure the stability of the dispersions at temperatures from 4&#xb0; C. to 50&#xb0; C.

Dispersions stabilized at temperatures of from 4 to 50 degrees celsius by means of a polymer comprising water-soluble units and units with an LCST

Photoprotective compositions, e.g., oil-in-water or water-in-oil emulsions, well suited for the photoprotection of the skin, lips and/or hair against the damaging effects of UV-radiation, comprise at least one aqueous phase, at least one water-soluble or water-dispersible polymer having a diblock structure A-B or a triblock structure B-A-B wherein A is an ionic water-soluble polymeric block and B is a hydrophobic polymeric block and at least one system screening out UV radiation, said at least one screening system comprising at least one 4,4-diarylbutadiene UV-A screening agent.

Aqueous photoprotective compositions comprising diblock or triblock copolymers and 4,4-diarylbutadiene UV-A sunscreens

Polymer comprising water-soluble units and LCST units, and aqueous composition comprising same

These objects and others may be accomplished with the present invention, the first embodiment of which provides an oil-in-water nanoemulsion, which includes: and wherein the oily phase includes oil globules having a number-average size of less than 100 nm. The nanoemulsion obtained is preferably transparent and stable on storage. It may form a composition for topical, preferably cosmetic or dermatological compositions, pharmaceutical compositions and ophthalmological compositions.

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Paris, France

Florence L'Alloret