Loading patent…
AssigneeL'oreal
InventorsAlain Ribier, Jean-Thierry Simonnet, Jacques Michelet
Estimating the term…
The present invention relates to a cosmetic or dermatological composition comprising an emulsion of oil-in-water type formed of oily globules which are each provided with a lamellar liquid crystal coating and are dispersed in an aqueous phase. Each oily globule containing at least one lipophilic compound which is cosmetically or dermatologically active is individually coated with a monolamellar or oligolamellar layer obtained from at least one lipophilic surface-active agent, from at least one hydrophilic surface-active agent and from at least one ionic amphiphilic lipid imparting to the emulsion a pH ranging from 5.5 to 7.5, the coated oily globules having a mean diameter of less than 500 nanometers.
A composition comprising an oil-in-water emulsion comprising a cosmetically or dermatologically active lipophilic compound and oily globules dispersed in an aqueous phase and provided with a lamellar liquid crystal coating, wherein each oily globule containing at least one lipophilic compound which is cosmetically or dermatologically active is individually coated with a monolamellar or oligolamellar layer obtained from at least one lipophilic surface-active agent, from at least one hydrophilic surface-active agent having an HLB of between 8 and 12 and from at least one ionic amphiphilic lipid imparting to the emulsion a pH ranging from 5.5 to 7.5, the coated oily globules having a mean diameter of less than 500 nanometres, and wherein the lipophilic surface-active agent, the hydrophilic surface-active agent and the ionic amphiphilic lipid vary within respective ranges of 35-55%, 25-40% and 15-35% by weight relative to their total weight.
An oil-in-water emulsion, comprising oily globules which are each provided with a lamellar liquid crystal coating and are dispersed in an aqueous phase, wherein each oily globule is individually coated with a monolamellar or oligolamellar layer obtained from at least one lipophilic surface-active agent, from at least one hydrophilic surface-active agent and from at least one ionic amphiphilic lipid imparting to the emulsion a pH ranging from 5.5 to 7.5, the coated oily globules having a mean diameter of less than 500 nanometres, and wherein the lipophilic surface-active agent, the hydrophilic surface-active agent and the ionic amphiphilic lipid vary within respective ranges of 35-55%, 25-40% and 15-35% by weight relative to their total weight.
Dependencies are inferred from the claim text.