Translucent cosmetic composition in the form of a water-in-oil emulsion
US9545373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 2013 |
| Grant date | Jan 17, 2017 |
| Priority date | — |
| Expiry date | Jul 22, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/262
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A transparent or translucent cosmetic composition in the form of a water-in-oil emulsion is provided. The composition includes an aqueous phase at a concentration, by weight, of about 50%-90%, based upon weight of the composition. The aqueous phase includes at least one amphiphilic compound selected from the group consisting of urea, sodium 5-oxo-2-pyrrolidinecarboxylate (sodium PCA), hydroxyethyl urea, nicotinamide, sodium citrate, ascorbic acid, or combinations thereof. The at least one amphiphilic compound is at a concentration, by weight, of about 2% to about 50%, based upon weight of the composition. The composition includes an oil phase comprising at least one water-in-oil emulsifier at a concentration, by weight, of about 1%-25%, based upon weight of the composition. The water-in-oil emulsion is a transparent or translucent composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.