Stable high internal phase ratio topical emulsions
US4385049A · kind A · utility
32Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 12, 1981 |
| Grant date | May 24, 1983 |
| Priority date | — |
| Expiry date | May 12, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q17/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Delivery systems for topical preparations which are commercially stable. The emulsions are water-in-oil in which the water phase comprises at least 75% of the emulsion by volume. The emulsifier is a nonionic oil soluble straight or branched chain ester or combination thereof composition having at least two hydrogen bonding sites per molecule.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.