Fuel additive and fuel composition containing the same
US6458173B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 18, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Aug 18, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L10/06
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides the use of a poly(hydroxy-carboxylic acid)amide or -ester derivative of general formula I: wherein R is the residue of an amine, an aminoalcohol or a polyol linked to the or each poly(hydroxycarboxylic acid) via an amide or ester linkage; R1 is hydrogen or optionally substituted hydrocarbyl group containing up to 50 carbon atoms; A is an optionally substituted hydrocarbyl group; n is from 1-100, preferably 1-10 and p is from 1-5, as a fuel additive acting as a detergent and as a lubricity additive in fuel compositions.Moreover, the invention provides a fuel oil composition comprising of a major amount of a fuel oil, and a minor amount of an the additive as well as a additive concentration for use in a fuel oil composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.