Fuel compositions containing hydrocarbyl-substituted polyoxyalkylene amines
US6217624A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Feb 18, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L10/04
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A fuel composition comprising a major amount of hydrocarbons boiling in the gasoline or diesel range and about 2,050 to about 10,000 parts per million by weight of a hydrocarbyl-substituted polyoxyalkylene amine having the formula: ##STR1## or a fuel-soluble salt thereof; PA1 wherein R is a hydrocarbyl group having from about 1 to about 30 carbon atoms; PA1 R.sub.1 and R.sub.2 are each independently hydrogen or lower alkyl having about 1 to about 6 carbon atoms and each R.sub.1 and R.sub.2 is independently selected in each --O--CHR.sub.1 --CHR.sub.2 -- unit; PA1 A is amino, N-alkyl amino having about 1 to about 20 carbon atoms in the alkyl group, N,N-dialkyl amino having about 1 to about 20 carbon atoms in each alkyl group, or a polyamine moiety having about 2 to about 12 amine nitrogen atoms and about 2 to about 40 carbon atoms; and PA1 x is an integer from about 5 to about 100. The fuel compositions of the present invention are useful for the prevention and control of engine deposits, particularly combustion chamber deposits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.