Aromatic esters of polyalkylphenoxyalkanols and fuel compositions containing the same
US5618320A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 1996 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | May 14, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/305
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aromatic esters of polyalkylphenoxyalkanols having the formula: ##STR1## or a fuel soluble salt thereof, wherein R is hydroxy, nitro or --(CH.sub.2).sub.x --NR.sub.5 R.sub.6, wherein R.sub.5 and R.sub.6 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms and x is 0 or 1; PA1 R.sub.1 is hydrogen, hydroxy, nitro or --NR.sub.7 R.sub.8, wherein R.sub.7 and R.sub.8 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms; PA1 R.sub.2 and R.sub.3 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms; and PA1 R.sub.4 is a polyalkyl group having an average molecular weight in the range of about 450 to 5,000. The compounds of formula I are useful as fuel additives for the prevention and control of engine deposits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.