Diesel fuel compositions for high pressure fuel systems
US9062265B2 · kind B2 · utility
9Cited by
20References
24Claims
0Family size
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Key dates
| Filing date | Feb 4, 2011 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | Feb 4, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L2270/026
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A diesel fuel composition comprising, as an additive, a quaternary ammonium salt formed by the reaction of a compound of formula (A): and a compound formed by the reaction of a hydrocarbyl-substituted acylating agent and an amine of formula (B1) or (B2): wherein R is an optionally substituted alkyl, alkenyl, aryl or alkylaryl group; R1 is a C1 to C22 alkyl, aryl or alkylaryl group; R2 and R3 are the same or different alkyl groups having from 1 to 22 carbon atoms; X is an alkylene group having from 1 to 20 carbon atoms; n is from 0 to 20; m is from 1 to 5; and R4 is hydrogen or a C1 to C22 alkyl group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.