L'oreal

Carl Riachi

Guillaume Kergosien

Jean-Thierry Simonnet

Hy Si Bui

Chunhua Li

XianZhi Zhou

Laure Le Chaux

Marina Le Pape

The invention relates to nail treatment system comprising at least one basecoat, at least one second coat, and optionally at least one topcoat, wherein the basecoat comprises water and at least one non-UV curable adhesive latex compound, and the second coat comprises at least one photocrosslinkable urethane (meth)acrylate and at least one (meth)acrylate monomer.

Nail treatment system

The present invention relates to a photocrosslinkable cosmetic composition, comprising in a physiologically acceptable medium: &#x2014;at least one photocrosslinkable urethane (meth)acrylate compound P1 comprising at least one structural unit: (I) &#x2014;at least one photocrosslinkable urethane (meth)acrylate compound P2 comprising at least one polyether chain, said compound having a molar mass greater than or equal to 1000 g/mol, &#x2014;at least one film-forming polymer P3, &#x2014;at least one photoinitiator, and &#x2014;at least one volatile solvent chosen from acetone, ethyl acetate, and propyl acetate, said solvent being present in said composition at a content greater than or equal to 20%, preferably greater than or equal to 30%, by weight in relation to the total weight of said composition, wherein the ratio of the total mass of P1 and P2 to the total mass of P3 is less than or equal to 4.0. 

Non-tacky photocrosslinkable cosmetic composition

The present invention relates to a photocrosslinkable cosmetic composition, comprising in a physiologically acceptable medium: &#x2014;at least one photocrosslinkable urethane (meth)acrylate compound P1 comprising at least one structural unit: (I) &#x2014;at least one photocrosslinkable urethane (meth)acrylate compound P2, comprising at least one polyethylene glycol chain, &#x2014;preferably at least one film-forming polymer P3, and &#x2014;at least one photoinitiator. 

High-gloss photocrosslinkable cosmetic composition

The present invention relates to a cosmetic or dermatological composition of sol/gel type for making up and/or caring for keratin materials characterized in that it comprises the product resulting from the reaction: (a) of at least one alkoxysilane monomer or oligomer of formula (I) R1xSi(OR2)(4-x) or of formula (II) [R1y (OR2)z SiO ((4-&#x3b3;-&#x3b6;)/2)]&#x3b7; in which R1 represents, independently, a nucleophilic group other than a hydroxyl, or a (Ci-C2o)alkyl group, R2 represents, independently, a (Ci-Cio)alkyl group, and (b) of an amount of water corresponding to a number of moles of water, determined according to the following equation: X&#x2212;(llAlkoxysilanes&#xd7;llbAlkoxy groups)/nH2o with nH2o=Number of moles of water, nAikoxysiianes=Number of moles of alkoxysilane compounds, nbAikoxy groups=Weighted mean of the number of alkoxysilane groups per alkoxysilane compound, and X is a number greater than 2. It also relates to an associated cosmetic process and an associated kit for coating keratin materials.

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Paris, France

Carl Riachi