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Nanoemulsion based on anionic polymers, and their uses in particular in cosmetics, dermatology, pharmaceutics and / or ophthalmology
Nanoemulsion based on anionic polymers, and their uses in particular in cosmetics, dermatology, pharmaceutics and / or ophthalmology
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机译:基于阴离子聚合物的纳米乳液及其在化妆品,皮肤病学,药物学和/或眼科学中的用途
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摘要
The present application relates to an oil-in-water nanoemulsions which comprising an oily phase dispersed in an aqueous phase, the oil globules of which have a mean size of less than 100 nm, characterized in that it comprises at least one amphiphilic lipid chosen from nonionic amphiphilic lipids, anionic amphiphilic lipids and their mixtures and at least one anionic polymer which contains at least one hydrophobic chain and in which the weight ratio of the amount of oily phase to the amount of amphiphilic lipid ranges from 1.2 to 10. The anionic polymer can in particular be an acrylic or methacrylic acid copolymer or a 2-acrylamido-2-methylpropanesulphonic acid copolymer, in particular an acrylic or methacrylic acid terpolymer. The nanoemulsion obtained is transparent and stable on storage. It can constitute a composition for topical use and in particular for cosmetic or dermatological use, a pharmaceutical composition, or an ophthalmological composition.
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