Aminocarbamates of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same
US5954843A · kind A · utility
11Cited by
9References
48Claims
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Key dates
| Filing date | Aug 28, 1998 |
| Grant date | Sep 21, 1999 |
| Priority date | — |
| Expiry date | Aug 28, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/305
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Aminocarbamates of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides having the formula: ##STR1## or a fuel soluble salt thereof; wherein R is a polyalkyl or polyalkenyl group having an average molecular weight in the range of about 450 to about 5,000; PA0 n is an integer from 2 to 5; and PA0 A is a polyamine moiety having at least one basic nitrogen atom, wherein the polyamine is connected to he carbonyl group through one of its nitrogen atoms to form a carbamate linkage. 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.