Fuel compositions and additives therefor
US5514190A · kind A · utility
35Cited by
6References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 8, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | Dec 8, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L1/305
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A highly effective fuel additive composition for control of intake valve deposits is described. It comprises (a) a gasoline-soluble Mannich reaction product of (i) a high molecular weight alkyl-substituted phenol, (ii) amine, and (iii) aldehyde; (b) a gasoline-soluble poly(oxyalkylene) carbamate; and (c) a gasoline-soluble poly(oxyalkylene) alcohol, glycol or polyol, or mono or diether thereof. Fuel compositions and methods of controlling engine deposits are also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.