| 摘要 |
<p>Compsn. contg. a dispersion of lipid vesicles with an aq. core and/or lipid vesicles with an oily core, comprises at least one acidic cpd. which confers a pH of < 5 to the compsn., the lipid membrane of the vesicles having an aq. core contg. neither acidic amphiphilic lipids, nor non-hydrogenated soya lecithin in presence of glycerine is new. The compsn. is an oil-in-water dispersion, and the lipid vesicles disperse the oil in the aq. phase. The aq.-core vesicles include a lipid membrane obtd. from non-ionic and/or ionic amphiphilic lipids. The oil-core vesicles are surrounded by a mono- or oligo-lamellar layer obtd. from at least one lipophilic surfactant with a fatty chain contg. >12C, a hydrophilic surfactant, an ionic amphiphilic lipid selected from neutralised anionic lipids, amphoteric lipids and alkylsulphonyl derivs. and fatty acids, pref. a 16-22C satd. fatty alcohol, associated with a basic agent such as NaOH, triethanolamine, lysine or arginine.</p> |
