Detergent compositions, their manufacture and their use as additives for fuels
US4375974A · kind A · utility
14Cited by
5References
16Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 8, 1981 |
| Grant date | Mar 8, 1983 |
| Priority date | — |
| Expiry date | Jul 8, 2001 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F8/32
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A nitrogen-containing composition, useful as a detergent for gasoline, is obtained by reacting at least one unsaturated anhydride with at least one olefin to convert 20-80% of the anhydride and thereafter reacting the resultant product with a polyamine of the general formula EQU H.sub.2 N--[(--CH.sub.2 --)--.sub.n NH].sub.m R.sup.7 wherein R.sup.7 is a monovalent aliphatic radical of 6-30 carbon atoms, n is an integer from 2 to 5 and m is an integer from 1 to 10.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.