Fuels with enhanced lubricity
US5997593A · kind A · utility
16Cited by
15References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Dec 22, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/2493
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A reaction product of at least one C.sub.5 -C.sub.60 carboxylic acid and at least one amine selected from the group consisting of guanidine, aminoguanidine, urea, thioruea and the salts thereof is disclosed as an additive for hydrocarbon fuels. The reaction product is added to a fuel, such as gasoline, at levels of from about 5 pounds of reaction product per thousands barrels of fuel (PTB) to about 100 PTB to increase the lubricity of the fuel and thereby reduce the wear occasioned upon the fuel pump. A composition comprising a hydrocarbon fuel and the reaction product is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.