UTILISATION POUR LE REVETEMENT DES MATIERES KERATINIQUES D'UN MATERIAU POLYMERIQUE HYBRIDE ; COMPOSITIONS COSMETIQUES OU DERMATOLOGIQUES

The invention relates to the use, for coating keratin substances, of a crosslinked hybrid polymer material which can be obtained from an aqueous solution containing:(a) at least one water-soluble polymer containing at least functional groups capable of forming hydrogen bonds, and(b) at least one organic or inorganic salt, of ammonium or of a monovalent or polyvalent metal cation; and by physical crosslinking of the said polymer resulting from hydrogen interactions between the functional groups of the said polymer and the water molecules in the hydration sphere of the said hydrated cation, for the preparation of cosmetic or dermatological compositions.The invention relates more particularly to the use of the said coating agent for make-up products, in particular foundations, lipsticks, mascaras, eyeliners and care bases for the nails; for hair formulations, in particular styling products and/or products for holding the hair, or alternatively for skincare products.