Stable multiple emulsion composition
US6290943A · kind A · utility
17Cited by
9References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1999 |
| Grant date | Sep 18, 2001 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/06
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
W.sub.1 -O-W.sub.2 emulsions are disclosed in which the W.sub.1 /O emulsion comprises an internal aqueous phase containing a benefit agent and an oil phase surrounding it, and, around this is found an external isotropic aqueous phase. It is critical that the external surfactant phase not comprise an amido containing anionic. It is also critical that oil be not greater than 50% unsaturated and not be a volatile silicone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.