Patent Number: 8,821,596

Title: Nitrogen-free deposit control fuel additives and one step process for the making thereof

Abstract: The present invention provides a nitrogen-free fuel detergent additive, fuel additive and fuel compositions containing the same, as well as a process for making such additives, where the additive may be described as a hydrocarbyl-substituted alkyloxy and/or hydroxy aromatic compound and may be produced by the reaction of (i) an alkyloxy and/or hydroxy aromatic compound and (ii) a polyolefin containing from 4 to 350 carbon atoms, in the presence of an optional solvent and/or catalyst, wherein the resulting nitrogen free additive provides acceptable engine deposit control that is comparable and/or better than the deposit control provided by nitrogen-containing fuel additives.

Inventors: Stevenson; Paul R. (Belper, GB), Moreton; David J. (Belper, GB), Barton; William R. S. (Belper, GB), Arters; David C. (Solon, OH), Dietz; Jeffry G. (Shaker Hts., OH)

Assignee: The Lubrizol Corporation

International Classification: C10L 1/18 (20060101)

Expiration Date: 9/02/12018