Abstract: The invention relates to cationic or amphoteric polyurethanes bearing at least one tertiary or quaternary amine function and having a self-adhesion value—expressed by the maximum tensile force (Fmax (in N)) recorded during the detachment by traction of two circular surfaces of 0.95 cm2, coated with the said polyurethanes—of greater than or equal to 11 N. The invention also relates to the use of these self-adhesive cationic polyurethanes, in cosmetics and in particular in styling compositions.

Abstract: The present invention relates to polyurethanes and a process for preparing them.

Abstract: Nontacky cosmetic compositions, such as hair compositions, comprising at least one polymer having a non-silicone backbone, comprising at least two reactive chemical functional groups, capable of forming a soft coating on hair, a cosmetic process comprising the application of this composition to hair and its use for producing a soft coating on hair.

Abstract: Cosmetic compositions, such as hair compositions, comprising at least one polymer with a non-silicone skeleton, comprising at least two reactive chemical functional groups, which are capable of forming a rigid coat on the hair, a cosmetic process comprising the application of this composition onto the hair, and its use for producing a rigid coat on the hair.

Abstract: The invention relates to cationic or amphoteric free-radical polymers, comprising one or more units derived from cationic or ampholytic ethylenic monomers, comprising at least one tertiary or quaternary amine function, characterized in that they have a self-adhesion value—expressed by the maximum tensile force (Fmax (in N)) recorded during the detachment by traction of two circular surfaces of 0.95 cm2, coated with polymer—of greater than or equal to 2 N. and also to their cosmetic use, in particular in the field of styling.

Abstract: Cosmetic compositions, comprising at least one polymer with a non-silicone skeleton, comprising at least two reactive chemical functional groups, that is capable of forming a tackifying coating on the hair, a cosmetic process comprising the application of the composition to the hair, and also its use for producing a tackifying coating on the hair.

Abstract: A composition, comprising, in an appropriate medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of make-up and are capable of being applied to keratinous fibres, in particular to the nails, eyelashes, eyebrows and hair. In particular, these compositions can make it possible to obtain a film which exhibits good resistance to chipping, to impacts, to rubbing movements, to scratches and/or to pressing actions.

Abstract: The invention relates to novel amphiphilic cationic associative polyurethanes of formula (I):

Abstract: Linear block ethylenic copolymer, comprising:

Abstract: A composition, comprising, in an appropriate medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of make-up and are capable of being applied to keratinous fibers, in particular to the nails, eyelashes, eyebrows and hair. In particular, these compositions can make it possible to obtain a film which exhibits good resistance to chipping, to impacts, to rubbing movements, to scratches and/or to pressing actions.

Abstract: The present invention relates to a process for increasing the persistence of at least one cosmetic and/or care effect of a cosmetic composition comprising an oily phase. This process comprises the incorporation into this oily phase of at least one linear or cyclic polyorganosiloxane which comprises at least two organosiloxy units and at least two side and/or end groups which are each capable of forming at least one hydrogen bond with one or more partner groups. The process may be applied, for example, to lipsticks, mascaras or eyeliners to increase the persistence of their coloring effect and/or gloss, to foundations, powders, blushers and eyeshadow to increase the persistence of the matt effect, and to care products such as moisturizing products, deodorants or antiperspirants to increase the persistence of their active care agents.

Abstract: Cosmetic compositions containing in a cosmetically acceptable medium (A) at least one film-forming oligomer having a molecular weight, measured by steric exclusion chromatography, of less than or equal to 50,000, the at least one film-forming oligomer being soluble or dispersible in the cosmetically acceptable medium; and (B) rigid, non-film-forming particles of average size less than or equal to 1 &mgr;m, the rigid, non-film forming particles being dispersed in the cosmetically acceptable medium. The compositions may be used, for example, as product bases for maintaining the hairstyle, as products for coating the eyelashes and the eyebrows or as nail make-up and/or care products.

Abstract: A composition, comprising, in a physiologically acceptable medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of caring for or making up keratinous fibers, in particular as a mascara composition for the eyelashes or for the hair.

Abstract: A composition, in particular a cosmetic composition, comprising, in an appropriate medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of make-up and are capable of being applied to the skin, semi-mucous membranes and/or mucous membranes. In particular, these compositions can be provided in the form of a transfer-free make-up composition.

Abstract: A composition, comprising, in a physiologically acceptable medium, at least one polymer with a highly specific ordered structure is disclosed. These compositions find a specific application in the field of caring for or making up keratinous fibres, in particular as a mascara composition for the eyelashes or for the hair.

Abstract: The invention relates to novel cosmetic or dermatological compositions, characterized in that they comprise, in a cosmetically acceptable support, at least one solution or one emulsion of at least one multiblock polycondensate whose chain consists of the repetition of at least one polysiloxane block and of at least one polyurethane and/or polyurea block; the said polyurethane and/or polyurea block also including ionizable groups and the said polycondensate being dissolved in an aqueous, organic or aqueous-organic solvent system.

Abstract: A composition useful as a tightening agent for decreasing or removing signs of aging, particularly for reducing or removing wrinkles and/or fine lines or to smooth out human skin. This composition comprises at least one grafted silicone polymer which itself comprises a polysiloxane portion and a portion composed of a non-silicone organic chain, one of the two portions constitutes the main chain of the polymer and the other is grafted to said main chain. Processes for the cosmetic treatment of aged skin, in particular wrinkled skin, comprising the application of an effective amount of the composition as defined above to achieve improvement in the appearance of rough, damaged or aged skin, or achieve softening the wrinkle by a tightening effect.

Abstract: The invention relates to the cosmetic use of block ethylenic copolymers of elastic nature comprising at least one rigid block having a glass transition temperature (Tg) of greater than or equal to 20° C. and at least one flexible block having a glass transition temperature (Tg) which is less than 20° C., said copolymers making it possible to obtain a film having an instantaneous recovery of between 5% and 100%. The invention also relates to cosmetic compositions containing these block ethylenic polymers of elastic nature.

Abstract: The subject-matter of the present invention is the use, in and for the preparation of cosmetic or dermatological compositions, of a grafted copolymer, the skeleton (S) of which is composed of a hydrophilic copolymer, with a glass transition temperature Tg greater than 25° C., obtained by radical polymerization or by polycondensation, comprising, on the chain of the skeleton (S), at least one graft composed of a hydrophobic macromonomer (M) with a glass transition temperature T'g of less than 25° C., as well as the cosmetic or dermatological compositions employed.

Abstract: Cosmetic compositions based on multiblock ionizable polycondensates, and uses thereof The invention relates to novel cosmetic or dermatological compositions, characterized in that they comprise, in a cosmetically acceptable support, at least one solution or one emulsion of at least one multiblock polycondensate whose chain consists of the repetition of at least one polysiloxane block and of at least one polyurethane and/or polyurea block; the said polyurethane and/or polyurea block also including ionizable groups and the said polycondensate being dissolved in an aqueous, organic or aqueous-organic solvent system. These compositions may be used in particular in the cosmetic field of hair care, make-up or skincare.