L'oreal

Societe L'oreal Sa

Rhone-poulenc Chimie

Loreal Sa

Other

Herve Richard

Madeleine Leduc

Serge Forestier

Gerard Lang

Alain Lagrange

Alex M Junino

Didier Candau

Alain LaGrange

Michel M Gay

Andre Deflandre

Edith Canivenc

Jean J Vandenbossche

Benoit Muller

Jean Cotteret

Claude Dubief

Delphine Allard

Florence L'Alloret

Bernadette Luppi

Damarys Braida-Valerio

Jinzhu Xu

Herve Plessix

Jianping Guo

Michel Dubois

Patricio Guerreiro

Jean F Grollier

Lei Zhang

Xavier Marat

Julie Grumelard

Barbara Winkler

Wensheng Tang

Cecile Fiandino

Alain Baudry

Catherine Lejuste

Julie Songeur-Geney

Dietmar Huglin

Jean Jacques Van Den Bossche

Jean C Grognet

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

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 process for preparing 2-hydroxyphenyl alkenyl benzotriazole compounds and the process for preparing siloxane compounds containing 2-hydroxyphenyl benzotriazole function are disclosed.

Process for preparing 2-hydroxyphenyl alkenyl benzotriazole compounds; use of the said compounds obtained via the process in the synthesis of siloxane compounds containing a 2-hydroxyphenylbenzotriazole function

A process for preparing a siloxane compound comprising a 2-hydroxyphenyl benzotriazole function which comprises at least one step in which a reaction for hydrosilylation of a compound 2-hydroxyphenyl benzotriazole comprising a substituent having a terminal double bond with a siloxane compound comprising an SiH function is carried out in the presence of a catalyst and of at least one volatile organic solvent corresponding to one of formula (VII) or (VIII). in which Rand R, which may be identical or different, represent a linear or branched C-Calkyl radical, with the proviso that the sum of the carbons of Rand Ris less than or equal to 6; y is and integer between 1 and 3; Rwhich may be identical or different, are linear or branched C-Calkyl radicals, with the proviso that the sum of the carbons of Ris less than or equal to 6 is disclosed. 

Process for preparing 2-hydroxyphenyl benzotriazole siloxane compounds

The present invention relates to a cosmetic composition containing a combination i) of at least one screening agent of the dibenzoylmethane derivative type and ii) of at least one particular hydrophilic or water-soluble merocyanin UV-screening agent, especially corresponding to one of the formulae (I) or (II) below: in which at least one or two of the radicals contain: either an alkylsulfonate radical in its acid or salified form, or one or two hydroxyl radicals. The invention also relates to a process for the radiation-photostabilization of at least one screening agent of the dibenzoylmethane derivative type with an effective amount of at least one particular hydrophilic or water-soluble merocyanin UV-screening agent, especially corresponding to one of the formulae (I) or (II).

Composition containing a dibenzoylmethane screening agent and a hydrophilic or water-soluble merocyanin uv-screening agent; process for photostabilizing the dibenzoylmethane screening agent

UV-photoprotective, topically applicable cosmetic/dermatological compositions contain: 

Photoprotective cosmetic compositions comprising silicon-containing s-triazine compounds substituted with two aminobenzoate or aminobenzamide groups and non-silicon-containing lipophilic triazine compound UV-screening agents

The present invention relates to a cosmetic composition comprising the combination i) of at least one screening agent of the dibenzoylmethane derivative type and ii) of at least one specific merocyanine dicyano or cyanoacetate derivative. It also relates to a method for the photostabilization, with regard to radiation, of at least one screening agent of the dibenzoylmethane derivative type by an effective amount of at least one specific merocyanine dicyano or cyanoacetate derivative.

Composition comprising a dibenzoylmethane screening agent and a merocyanine dicyano or cyanoacetate derivative; method for the photostabilization of the dibenzoylmethane screening agent

UV-photostable, topically applicable cosmetic/dermatological compositions contain at least one dibenzoylmethane UV-sunscreen compound and at least one photostabilizing silicon-containing s-triazine compound substituted with two aminobenzoate or aminobenzamide groups.

UV-photoprotective compositions comprising diebenzoylmethane screening agents and silicon-containing s-triazine compounds substituted with two aminobenzoate or aminobenzamide groups

The present invention relates to the use of at least one piperidine ester derivative of formula (I) below: in which: Ris a linear or branched C-Calkyl radical, Ris a linear or branched C-Calkyl radical, with the proviso that the sum of the carbon atoms for Rand Ris between 2 and 22, in a composition comprising, in a cosmetically acceptable medium, at least one liquid fatty phase and at least one lipophilic active agent, and containing no dibenzoylmethane-type UV screening agent, as a solvent for said active agent in said liquid fatty phase and/or as an agent improving the solubility of said active agent in said fatty phase. The present invention also relates to a composition comprising, in a cosmetically acceptable medium, at least one liquid fatty phase, characterized in that it comprises at least one piperidine ester derivative of formula (I) as defined above and in that it does not contain a dibenzoylmethane-type UV screening agent. 

Use of piperidine ester derivative as solvent in cosmetic compositions; cosmetic compositions comprising it

Novel s-triazine sunscreens have the structural formula (I): and are formulated into cosmetic/dermatological photoprotective compositions useful for photoprotecting keratinous substances against the damaging effects of UV-radiation.

S-triazine sunscreens bearing hindered para-aminobenzalmalonate/para-aminobenzalmalonamide and aminobenzoate/aminobenzamide substituents

UV-photoprotective sunscreen compositions contain at least one novel silanic p-aminobenzalmalonate-substituted s-triazine compound having the general formula (I): 

Silanic para-aminobenzalmalonate-substituted s-triazine compounds and photoprotective compositions comprised thereof

Photostable, topically applicable cosmetic/dermatological compositions contain at least one dibenzoylmethane compound UV-A sunscreen and at least one merocyanine sulfone compound.

Photoprotective cosmetic compositions comprising photostabilized dibenzoylmethane compounds and merocyanine sulfone compounds

Topically applicable cosmetic compositions useful for the UV-A photoprotection of the skin and/or hair contain thus effective amounts of at least one silane, siloxane or polysiloxane merocyanine sulfone having at least one of the structural formulae (1), (2) and (3) below: 

UV-photoprotecting/sunscreen compositions comprising silane/siloxane derivatives of merocyanine sulfones

Novel 4,4-diarylbutadiene-substituted diorganopolysiloxanes having the structural formulae (1) or (2): in which A is a radical of formula (3) below: are useful sunscreens for UV-photoprotecting human skin against the damaging effects of UV-radiation, notably UV-A radiation.

Diarylbutadiene-substituted diorganopolysiloxanes and photoprotective compositions comprised thereof

Novel 4,4-diarylbutadiene-substituted methyltrialkylsilanes having the structural formula (I): are useful sunscreens for UV-photoprotecting human skin against the damaging effects of UV-radiation, notably UV-A radiation.

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Villepinte, France

Herve Richard