Fatty alcohol phosphate ester emulsifier compositions
US6117915A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1997 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Dec 29, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D17/0021
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
An oil-in-water emulsifier composition including between about 10 percent and about 70 percent by weight of a blend of mono- and diester phosphates of alkoxylated fatty alcohols containing between about 12 and 22 carbon atoms and alkoxylated with between about 1 and about 50 moles of an alkylene oxide selected from the group consisting of ethylene oxide, propylene oxide and mixtures thereof, wherein the mono- and diester ratio is between about 10:90 and about 90:10; and between about 90 percent and about 30 percent by weight of a blend of mono- and di-ester phosphates of fatty alcohols containing between 12 and 22 carbon atoms, wherein the mono- and diester ratio is between about 10:90 and about 90:10. Emulsifying waxes, oil-in-water emulsions and microemulsions, and topical compositions formulated therefrom are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.