Use of amines with polyfluorinated chain as lubricant additives
US5039438A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 1987 |
| Grant date | Aug 13, 1991 |
| Priority date | — |
| Expiry date | May 29, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M2219/089
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Methods for improving the anti-friction and wear-reducing properties of lubricating oils by adding to such oils polyfluoro chain-containing amines of the formula ##STR1## or the commercially available mixtures of such materials, wherein n is an integer from 1 to 20, a is two or four, R.sub.2 is hydrogen or a lower alkyl group, and R.sub.1 and Z are: PA0 When Z is hydrogen, R.sub.1 is hydrogen or an alkyl group having from one to six carbon atoms, an aryl radical, or an alicyclic radical having from three to ten carbon atoms, or PA0 R.sub.1 and Z are selected from alkyl radicals having from one to six carbon atoms, or PA0 Z is ##STR2## while R.sub.1 is hydrogen, an alkyl group having from one to six carbon atoms, or ##STR3## R and R' being hydrogen or methyl, or R.sub.1 and Z together form a linear alkylene group containing from three to ten carbon atoms, and lubricating oils containing such polyfluoro chain-containing amines and "ash-free" or organometallic dispersant/detergent additives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.