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
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.
대표청구항▼
The invention claimed is: 1. A cosmetic composition comprising, in a physiologically acceptable medium, at least one first polymer of formula (I): wherein: n is an integer which represents the number of amide units such that the number of ester groups present in said at least one first polymer r
The invention claimed is: 1. A cosmetic composition comprising, in a physiologically acceptable medium, at least one first polymer of formula (I): wherein: n is an integer which represents the number of amide units such that the number of ester groups present in said at least one first polymer ranges from 10% to 50% of the total number of all said ester groups and all said amide groups comprised in said at least one first polymer; R1, which are identical or different, are each chosen from alkyl groups comprising at least four carbon atoms and alkenyl groups comprising at least four carbon atoms; R2, which are identical or different, are each chosen from C4 to C42 hydrocarbon-based groups with the proviso that at least 50% of R2 are chosen from C30 to C42 hydrocarbon-based groups; R3, which are identical or different, are each chosen from organic groups comprising at least two carbon atoms, hydrogen atoms, and optionally at least one entity chosen from oxygen and nitrogen atoms; and R4, which are identical or different, are each chosen from hydrogen, C1 to C10 alkyl groups, and a direct bond to R3 or another R4, such that the nitrogen atom to which R3 and R4 are both attached forms part of a heterocyclic structure defined by R4-N-R3, with the proviso that at least 50% of all R4 are chosen from hydrogen; and a dispersion of particles of at least one second polymer that is film-forming and insoluble in said medium. 2. The composition of claim 1, wherein the at least one first polymer has a weight-average molecular mass ranging from 1,000 to 100,000. 3. The composition of claim 2, wherein the at least one first polymer has a weight-average molecular mass ranging from 1,000 to 50,000. 4. The composition of claim 3, wherein the at least one first polymer has a weight-average molecular mass ranging from 1,000 to 30,000. 5. The composition of claim 1, wherein the at least one first polymer is chosen from ethylenediamine/stearyl dimer tallate copolymer and ethylenediamine/stearyl dimer dilinoleate copolymer. 6. The composition of claim 1, wherein the at least one first polymer is present in the composition in an amount ranging from 0.01% to 10% by weight, relative to the total weight of the composition. 7. The composition of claim 6, wherein the at least one first polymer is present in the composition in an amount ranging from 0.05% to 5% by weight, relative to the total weight of the composition. 8. The composition of claim 7, wherein the at least one first polymer is present in the composition in an amount ranging from 0.1% to 3% by weight, relative to the total weight of the composition. 9. The composition of claim 1, wherein the at least one second polymer is chosen from radical-mediated polymers, polycondensates, polymers of natural origin, and mixtures thereof. 10. The composition of claim 1, wherein the at least one second polymer is chosen from vinyl polymers, polyurethanes, polyesters, cellulose polymers, and mixtures thereof. 11. The composition of claim 1, further comprising an aqueous phase. 12. The composition of claim 11, wherein the aqueous phase comprises at least one water-soluble film-forming polymer. 13. The composition of claim 11, wherein the aqueous phase comprises water and, optionally, at least one water-miscible organic solvent. 14. The composition of claim 13, wherein water is present in the composition in an amount ranging from 5% to 90% by weight, relative to the total weight of the composition. 15. The composition of claim 13, wherein the at least one water-miscible organic solvent is chosen from lower monoalcohols comprising from 1 to 5 carbon atoms, glycols comprising from 2 to 8 carbon atoms, C3-C4 ketones, and C2-C4 aldehydes. 16. The composition of claim 13, wherein the at last one water-miscible organic solvent is chosen from ethanol, isopropanol, propylene glycol, ethylene glycol, 1,3-butylene glycol, and dipropylene glycol. 17. The composition of claim 1, wherein the at least one second polymer is present in the form of particles dispersed in an aqueous phase. 18. The composition of claim 1, further comprising a liquid fatty phase. 19. The composition of claim 18, wherein the liquid fatty phase comprises at least one oil chosen from mineral oils, animal oils, plant oils, synthetic oils, hydrocarbon-based oils, fluorinated and/or silicone-based oils, and mixtures thereof. 20. The composition of claim 18, wherein the liquid fatty phase comprises at least one oil that is volatile at room temperature. 21. The composition of claim 18, wherein the liquid fatty phase comprises a volatile oil chosen from hydrocarbon-based volatile oils comprising from 8 to 16 carbon atoms. 22. The composition of claim 20, wherein the volatile oil is present in the composition in an amount ranging from 0.1% to 98% by weight, relative to the total weight of the composition. 23. The composition of claim 22, wherein the volatile oil is present in the composition in an amount ranging from 1% to 65% by weight, relative to the total weight of the composition. 24. The composition of claim 18, wherein the liquid fatty phase is present in the composition in an amount ranging from 2% to 98% by weight, relative to the total weight of the composition. 25. The composition of claim 24, wherein the liquid fatty phase is present in the composition in an amount ranging from 5% to 85% by weight, relative to the total weight of the composition. 26. The composition of claim 1, wherein the at least one second polymer is present in the form of surface-stabilized particles dispersed in a liquid fatty phase. 27. The composition of claim 26, wherein the particles of the at least one second polymer are surface-stabilized with at least one stabilizer chosen from block polymers, grafted-block polymers, grafted polymers, random polymers, and blends thereof. 28. The composition of claim 27, wherein the stabilizer is chosen from grafted-block and block polymers, comprising at least one block resulting from the polymerization of ethylenic monomers comprising at least one optionally conjugated ethylenic bond, and at least one block of a styrene polymer. 29. The composition of claim 1, wherein the at least one second polymer is present in the composition in an amount ranging from 0.1% to 60% by weight, relative to the total weight of the composition. 30. The composition of claim 29, wherein the at least one second polymer is present in the composition in an amount ranging from 10% to 45% by weight, relative to the total weight of the composition. 31. The composition of claim 1, wherein the size of the particles of the at least one second polymer ranges from 5 nm to 600 nm. 32. The composition of claim 31, wherein the size of the particles of the at least one second polymer ranges from 20 nm to 300 nm. 33. The composition of claim 1, further comprising at least one wax. 34. The composition of claim 33, wherein the at least one wax has a melting point ranging from 30�� C. to 120�� C. 35. The composition of claim 33, wherein the at least one wax is chosen from beeswax, lanolin wax, Chinese insect waxes, rice wax, carnauba wax, candelilla wax, ouricury wax, cork fiber wax, sugar cane wax, Japan wax, sumach wax, montan wax, microcrystalline waxes, paraffin waxes, ozokerites, ceresin wax, lignite wax, polyethylene waxes, waxes obtained by Fisher-Tropsch synthesis, fatty acid esters of glycerides that are solid at 40�� C., waxes obtained by catalytic hydrogenation of animal or plant oils containing linear or branched C8-C32 fatty chains, silicone waxes, fluoro waxes, and mixtures thereof. 36. The composition of claim 33, wherein the at least one wax is present in the composition in an amount ranging from 0.1% to 50% by weight, relative to the total weight of the composition. 37. The composition of claim 36, wherein the at least one wax is present in the composition in an amount ranging from 0.5% to 30% by weight, relative to the total weight of the composition. 38. The composition of claim 37, wherein the at least one wax is present in the composition in an amount ranging from 1% to 20% by weight, relative to the total weight of the composition. 39. The composition of claim 1, further comprising at least one dyestuff. 40. The composition of claim 39, wherein the at least one dyestuff is chosen from pigments, nacres, liposoluble dyes, water-soluble dyes, and mixtures thereof. 41. The composition of claim 39, wherein the at least one dyestuff is present in the composition in an amount ranging from 0.01% to 50% by weight, relative to the total weight of the composition. 42. The composition of claim 41, wherein the at least one dyestuff is present in the composition in an amount ranging from 0.01% to 30% by weight, relative to the total weight of the composition. 43. The composition of claim 1, further comprising at least one additive chosen from antioxidants, fillers, preserving agents, fragrances, neutralizing agents, thickeners, cosmetic active agents, dermatological active agents, and mixtures thereof. 44. The composition of claim 1, wherein the composition is in a form chosen from mascaras, eyeliners, products for the eyebrows, products for the lips, face powders, eyeshadows, foundations, make-up products for the body, concealer products, nail varnishes, skincare products, and haircare products.
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