Patent ID: 11944948
Assignee: RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
Field: Pharmaceuticals (Chemistry)
Classification: CPC B  A | IPC A  B

Claim 8:
9. A cosmetic or drug delivery composition comprising:
each different liquid, a dispersed phase and a continuous phase;
an anionic cellulose nanofibril and a cationic hectorite nanoplate particle structure that forms a coacervate interfacial film which is located at an interface of the dispersed phase and the continuous phase and lowers an interfacial tension therebetween; and
an active ingredient contained inside the dispersed phase,
wherein the cationic hectorite nanoplate particle structure contains a hectorite nanoplate particle and a cationic surfactant coupled to a surface of the hectorite nanoplate particle,
wherein the anionic cellulose nanofibril contains an anionic functional group in at least a portion thereof, and
wherein the cationic hectorite nanoplate particle structure is disposed in contact with an oil phase and the anionic cellulose nanofibril is disposed in contact with a water phase, and forms the coacervate interfacial film by electrostatic interaction between the cationic surfactant and the anionic functional group.