Cosmetic or dermatological composition in an aqueous medium comprising a film-forming oligomer and rigid, non-film-forming nanometric particles and uses thereof

#The present invention relates to cosmetic or dermatological compositions comprising, in a cosmetically acceptable aqueous medium, at least one film-forming oligomer which is soluble or dispersible in the said medium, and at least one type of rigid, non-film-forming nanometric, i.e., average particle size of less than or equal to 1 .mu.m, particles dispersed in the said medium, as well as to their uses in the cosmetics or dermopharmacy field, in particular in products for maintaining the hairstyle, products for coating the eyelashes and eyebrows, and nail make-up and/or care products.

#Film-forming polymers that are soluble in aqueous and aqueous-alcoholic media, such as polyvinylpyrrolidone, vinylpyrrolidone/vinyl acetate copolymers, vinyl acetate/crotonic acid copolymers, and anionic or amphoteric acrylic resins are commonly used in hair fixing products, mascaras or nail make-up and/or care products.

#The hair fixing products most widely found on the cosmetics market are spray compositions comprising a solution, usually an aqueous-alcoholic solution, and a film-forming polymer which is soluble in water and in alcohol, such as those mentioned above, as a mixture with various cosmetic adjuvants. This solution is generally packaged either in a suitable aerosol container placed under pressure by means of a propellant gas, or in a pump-dispenser.

#The examples which follow serve to illustrate the invention without, however, being limiting in nature.

#Composition of the Polymer of the Latex:

#______________________________________ methyl methacrylate 91% by weight methacrylic acid 5% by weight ethylene glycol dimethacrylate (cross-linking agent) 4% by weight ______________________________________