Polyalkyl nitro and amino aromatic esters and fuel compositions containing the same
US5380345A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1993 |
| Grant date | Jan 10, 1995 |
| Priority date | — |
| Expiry date | Dec 3, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/238
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Polyalkyl nitro and amino aromatic esters having the formula: ##STR1## wherein A.sub.1 is nitro, amino, N-alkylamino wherein the alkyl group contains 1 to 6 carbon atoms, or N,N-dialkylamino wherein each alkyl group independently contains 1 to 6 carbon atoms; R.sub.1 and R.sub.2 are independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; R.sub.3 is a polyalkyl group having a weight average molecular weight in the range of about 450 to 5,000; and x is an integer from 0 to 10. The polyalkyl nitro and amino aromatic esters 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.