Fluorinated telomers containing hydrophilic groups, process for preparation thereof, and the use thereof as surfactants in aqueous media
US4717744A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1985 |
| Grant date | Jan 5, 1988 |
| Priority date | — |
| Expiry date | Dec 24, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62D1/0085
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Fluorinated telomers which can be defined by the formula: EQU R.sub.F --C.sub.m H.sub.2m --(CH.sub.2 --CR.sub.1 R.sub.2).sub.n X (I) wherein R.sub.F is a poly- or perfluorinated radical; X is iodine, chlorine or bromine; m is 0, 1 or 2; n is from 5 to 1000; R.sub.1 is hydrogen or methyl; and R.sub.2 is a --COOH or --CONR.sub.3 R.sub.4 group, R.sub.3 and R.sub.4 being hydrogen or alkyl or hydroxyalkyl radicals, such telomers being obtained by free radical reaction of an ethylenic monomer CH.sub.2 .dbd.CR.sub.1 R.sub.2 with a fluorinated telogen R.sub.F --C.sub.m H.sub.2m --X, and being excellent surfactants in aqueous media with special usefulness as additives to fire-fighting protein-based emulsifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.