The invention relates to a physiologically acceptable, in particular mascara, cosmetic composition comprising at least one volatile solvent and at least one polymer chosen from polymers of following formula (I): ##STR1## in which n denotes a number of amide units, such that the number of ester groups represents from 10% to 50% of the total number of ester and amide groups: R.sup.1 is in each case, independently an alkyl or alkenyl group having at least 4 carbon atoms; R.sup.2 independently represents in each case a C.sub.4 to C.sub.42 hydrocarbonaceous group, provided that 50% of the R.sup.2 groups represent a C.sub.30 to C.sub.42 hydrocarbonaceous group; R.sup.3 independently represents, in each case, an organic group provided with at least 2 carbon atoms, with hydrogen atoms and optionally with one or more oxygen or nitrogen atoms; and R.sup.4 independently represents, in each case, a hydrogen atom a C.sub.1 to C.sub.10 alkyl group or a direct bond to R.sup.3 or another R.sup.4, so that the nitrogen atom to which both R.sup.3 and R.sup.4 are bonded forms part of a heterocyclic structure defined by R.sup.4 --N--R.sup.3 with at least 50% of the R.sup.4 groups representing a hydrogen atom.
Cosmetic compositions comprising at least one structuring polymer chosen from polymers of following formula (I): ##STR00001## in which n denotes a number of amide units, such that the number of ester groups represents from 10% to 50% of the total number of ester and amide groups; R.sup.1 is, in each case, independently an alkyl or alkenyl group having at least 4 carbon atoms; R.sup.2 independently represents, in each case, a C.sub.4 to C.sub.42 hydrocarbonaceous group, provided that 50% of the R.sup.2 groups represent a C.sub.30 to C.sub.42 hydrocarbonaceous group; R.sup.3 independently represents, in each case, an organic group provided with at least 2 carbon atoms, with hydrogen atoms and optionally with one or more oxygen or nitrogen atoms; and R.sup.4 independently represents, in each case, a hydrogen atom, a C.sub.1 to C.sub.10 alkyl group or a direct bond to R.sup.3 or another R.sup.4, so that the nitrogen atom to which both R.sup.3 and R.sup.4 are bonded forms part of a heterocyclic structure defined by R.sup.4--N--R.sup.3, with at least 50% of the R.sup.4 groups representing a hydrogen atom and at least one solid substance that has a melting point of 45.degree. C. or greater.
Compositions comprising at least one structuring polymer and at least one oil-soluble polymer chosen from alkyl celluloses and alkylated guar gums. The compositions may further comprise at least one fatty alcohol. This composition may be in the form of stable compositions such as, for example, make-up sticks, lipsticks and sunscreen sticks.
Cosmetic composition comprising a polymer blend The invention relates to a composition comprising, in a physiologically acceptable medium, at least a first polymer with a weight-average molecular mass of less than 100 000, comprising a) a polymer skeleton containing hydrocarbon-based repeating Units containing at least one hetero atom, and optionally b) at least one pendent fatty chain and/or at least one terminal fatty chain, which may be functionalized, containing from 6 to 120 carbon atoms and being linked to these hydrocarbon-based units, a dispersion of particles of a second film-forming polymer that is insoluble in said medium. Application to make-up and caring for keratin materials.
The invention relates to a composition comprising, in a physiologically acceptable medium containing a fatty phase, a polymer with a weight-average molecular mass of less than 100 000 and in particular ranging from 1 000 to 30 000, comprising a) a polymer skeleton containing hydrocarbon-based repeating units containing at least one hetero atom, and optionally b) pendent fatty chains and/or terminal fatty chains, which may be functionalized, containing from 6 to 120 carbon atoms and being linked to these units, and fibres.
