Lvmh Recherche

Centre National De La Recherche Scientifique

UniversitÉ De Pau Et Des Pays De L'adour

Lvhm Recherche

Universite De Pau Et Des Pays De 1'adour

Emilie Gombart

Jean-Francois Tranchant

Myriam Chevalier

Maud Save

Laurent Billon

Mohamed Boularas

Jean-François R Tranchant

Patrick Oudry

Marc Chevalier

Alex Poulin

Jean-François Tranchant

The invention relates to poly(oligo(ethylene glycol) methacrylate) microgels, to the process for preparing same and the uses thereof in various fields of application such as optics, electronics, pharmacy and cosmetics. These microgels have the advantage of being monodisperse, pH-responsive and temperature-responsive. They can carry magnetic nanoparticles or biologically active molecules. These microgels may also form transparent films, which have novel optical and electromechanical properties.

Poly(ethylene glycol) methacrylate microgels, preparation method and uses

Device for packaging and applying a liquid composition comprising solid particles that are sensitive to a magnetic field, comprising a container intended to contain the composition; an applicator that is able to be mounted on the container and comprises a stem and an applicator head secured to the stem, the stem and the head being designed to be inserted into the container when the applicator is mounted on the container; and a stem cleaning member disposed in the container. The stem comprises a magnetic part that is able to generate a magnetic field suitable for attracting and keeping some of the solid particles on the stem, in a rest position, the magnetic part extending over a part of a region of the stem that extends between the head and the cleaning member when the applicator is mounted on the container.

Device for packaging and applying a liquid composition

The present invention relates to a method of cosmetic care that consists of applying, on at least one area of the body, a cosmetic composition containing an elastic mixture consisting of at least one starch, at least one polymer selected from polyvinyl alcohols, vinylpyrrolidone polymers and copolymers and latex, at least one polyol, and optionally water. The mixture imparts elasticity to the cosmetic product applied on the surface of the skin naturally subjected to deformations, such as the changes of facial expression, pressure of the fingers by contact, or contact with clothing.

Cosmetic care composition and method using an elastic mixture

The mascara in powder form comprises at least a first polymer whose melting point is between 35&#xb0; C. and 70&#xb0; C., and a second polymer with a melting point of between 80&#xb0; C. and 150&#xb0; C. The first polymer may be chosen from vinylpyrrolidone copolymers, and polyalkylene glycols. The second polymer may be chosen from polybutenes, preferably with an average molecular weight of between 300 and 2500 g/mol, and polyvinylpyrrolidones, preferably with an average molecular weight of between 10 000 and 100 000 g/mol. The mascara in powder form is taken up in the desired amount and is then heated before application or at the time of application to the keratin fibers.

Mascara in powder form

The invention relates to cosmetic compositions comprising a black color subtractive mixture consisting of one blue pigment (ferric ammonium ferrocyanide and/or ultramarine blue), at least one yellow organic pigment and at least one red organic pigment, which are mixed homogeneously, said mixture having a very dark black color.

Makeup composition comprising a black colour mixture of pigments

The invention relates to cosmetic compositions comprising a black color subtractive mixture consisting of at least one blue organic pigment, at least one yellow organic pigment and at least one red organic pigment, which are mixed homogeneously, said mixture having a luminance value L*(15&#xb0;) of less than 30.

The present invention relates to cosmetic make-up compositions, in particular mascaras, comprising carbon black encapsulated in a spherical silica matrix. These compositions are characterized by a deep and glossy black color.

Growing community of inventors

Orleans, France

Emilie Gombart