Microemulsions containing perfluoropolyethers
US4990283A · kind A · utility
103Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1988 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Oct 14, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2371/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Microemulsions based on perfluoropolyethers, comprising: PA1 an aqueous medium, PA1 a perfluoropolyether having a mean molecular weight from 400 to 10,000, and perfluoroalkyl end groups; PA1 a fluorinated surfactant, and optionally also a short-chain hydrogenated alcohol or a fluoroalkanol, or a water-soluble salt, said microemulsions being permanently stable in a certain temperature range, in which they are preparable by simple mixing of the components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.