Microemulsion and sub-micron emulsion process and compositions
US9492384B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2015 |
| Grant date | Nov 15, 2016 |
| Priority date | — |
| Expiry date | Feb 24, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P17/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An oil in water microemulsion or sub-micron emulsion composition for dermal delivery of desonide is provided, along with a method of medical or cosmetic treatment of a dermal condition using the composition. The composition includes desonide; an oil phase dispersed throughout a water phase, the oil phase including at least one member selected from the group consisting of an animal oil, a mineral oil, a vegetable oil, a silane member, a siloxane, an ester, a fatty acid, a fat, a halogen compound, and an alkoxylated alcohol; and at least one lipophilic surfactant, the water phase including at least one hydrophilic surfactant and water; and a non-surfactant amphiphilic compound that is miscible in the water phase and added to the composition after formation of the microemulsion or sub-micron emulsion; wherein the desonide is in the water phase or both the water phase and the oil phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.