Fluorine-containing polyether and nonionic surfactant comprising the same
US5227516A · kind A · utility
10Cited by
2References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 18, 1991 |
| Grant date | Jul 13, 1993 |
| Priority date | — |
| Expiry date | Dec 18, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G2650/48
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A fluorine-containing polyether of the formula: EQU R.sub.f --X--A (I) EQU or EQU A--X--R'.sub.f --X--A (II) wherein R.sub.f and R'.sub.f are each a linear group containing a perfluoroalkyl polyether group, X is --CF.sub.2 COO--, --C.sub.2 F.sub.4 COO-- or --CF.sub.2 CF.sub.2 -- and A is a group containing a polyalkylene glycol group. The polyether can be used as a nonionic surfactant which is compatible with a perfluoroalkyl polyether.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.