Phase stable multiple emulsion compositions
US6235298A · kind A · utility
13Cited by
8References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 22, 1999 |
| Grant date | May 22, 2001 |
| Priority date | — |
| Expiry date | Oct 22, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q19/00
- 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 optional benefit agent and an oil phase surrounding it, and, around this is found an external isotropic aqueous phase comprising surfactant system and specific thickeners. Selection of surfactant system and thickener is critical to the multiple emulsion composition not phase separating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.