METHOD FOR TREATING KERATIN MATERIALS USING AN ACRYLIC ANHYDRIDE POLYMER IN OILY DISPERSION AND AN AMINE COMPOUND

• Main Authors: PORTAL JULIEN, TAUPIN SIMON
• Format: Patent
• Language: Chinese; English
• Published: 01.06.2021
• Subjects: HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS

The present invention concerns a method for treating keratin materials, preferably human skin, in particular lips, preferably in at least two steps implementing, firstly, applying an oily dispersion (A) to the materials, comprising i) particles of copolymers of alkyl acrylates and acrylic anhydrides, ii) stabilising agents, iii) one or more hydrocarbon oils; then, secondly, applying a composition (B) to the materials comprising iv) one or more amine compounds, it being understood that the method of the invention uses v) one or more cosmetic active agents chosen from a) pigments, b) active skin care agents and c) UV filters and d) the mixtures thereof; the ingredients a) to d) being capable of being found in composition (A), and/or in composition (B), and/or in another composition (C). The method of the invention can be used to obtain a treatment for these keratin materials that is resistant, in particular, to sweat, shower gels, water and fatty substances, in particular edible vegetable or animal oils, and mo