Polyfluorinated compounds, their preparation and their use as lubricant additives
US4859357A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 9, 1988 |
| Grant date | Aug 22, 1989 |
| Priority date | — |
| Expiry date | Jun 9, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2215/042
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to new polyfluorinated compounds which are usable as anti-wear additives for lubricants. These compounds are of general formula: ##STR1## in which R.sub.F is a perfluorinated radical, X denotes a divalent linkage--(CH.sub.2 CF.sub.2).sub.a (CH.sub.2).sub.b --, --CF.dbd.CH--CH.sub.2 -- or --CFH--CH.sub.2 CH.sub.2 --, a is an integer ranging from 0 to 10, b is an integer ranging from 1 to 4 but equal to 2 if a is other than zero, R.sub.1 denotes a hydrogen atom or an alkyl radical, R.sub.2 denotes a hydrogen atom or a methyl radical and R.sub.3 denotes an alkyl radical. They are prepared by condensing an amino alcohol, R.sub.F --X--NH--CH.sub.2 CH(R.sub.1)OH, with an alkyl ester of an unsaturated carboxylic acid, CH.sub.2 .dbd.C(R.sub.2)--COOR.sub.3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.