Emulsion compositions
US5618522A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1995 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jan 20, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/412
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to oil-in-water emulsion compositions useful for topical application to human skin. These compositions comprise from about 5% to about 60% by weight of the total composition of an oil phase having a viscosity from about 3000 cps to about 10,000,000 cps, wherein the oil phase comprises from about 0.1% to about 10% by weight of the total composition of a particulate thickener for the oil phase, and from 0% to about 10% by weight of the total composition of an oil phase emulsifier. These compositions also comprise from about 40% to about 95% by weight of the total composition of an aqueous phase selected from the group consisting of water, water-miscible solvents, and mixtures thereof, wherein the aqueous phase comprises from 0% to about 10% by weight of the total composition of an aqueous phase emulsifier. In these compositions the weight percentages of the oil phase emulsifier and of the aqueous phase emulsifer are not simultaneously zero.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.