Les Peintures Jefco

Coloris Global Coloring Concept

Les Peintures Jefco Francis Et Jean Durour

Daniel Lefevre

Pierre Legrand

Gerard Riess

Jean-Phillipe Lerch

Jean-Raymond Gavarri

Michel Dufour

Gilbert Vacquier

Jean-Christophe Valmalette

A liquid concentrate of pigments of mineral and organic hybrid solid particles of 0.5 to 2 &#x3bc;m, including a copolymer consisting of:

Liquid concentrate of solid particles of hybrid pigments containing grafted copolymers and use of same for preparing paints in an aqueous and/or organic medium

A liquid concentrate of mineral fillers including an aqueous or organic solvent, mineral fillers useful for making paints, with a dry extract of mineral fillers not less than 65%, and a grafted copolymer of:

Liquid concentrate of mineral fillers containing grafted polymers and their use for preparing paints in aqueous and/or organic medium

The invention relates to grafted copolymers comprising at least three sequences of distinct chemical nature, among which one or more sequence(s) for anchoring on solid particles, one or more sequence(s) of hydrophobic character and one or more sequence(s) of hydrophilic character. The invention also concerns their process of preparation, the compositions containing them, their use as agent for dispersing, stabilizing solid particles and/or emulsifying in an aqueous and/or organic medium, as well as use thereof for preparing pigmentary dispersions in aqueous and/or organic medium.

Graft copolymers, method for preparing same, compositions containing said copolymers, and use thereof for preparing pigment dispersions in aqueous and/or organic media

Vanadium dioxide particles having formula V M O , wherein 0&lE;x&gE;0.05 and M is a doping metal, and being characterized in that they have a particle size of less than 10 &mgr;m, a method for preparing same, and the use of said microparticles, in particular for surface coating, are disclosed.

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Aubagne, France

Daniel Lefevre