The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 02, 2014
Filed:
Dec. 17, 2010
Paul R. Stevenson, Belper, GB;
David J. Moreton, Belper, GB;
William R. S. Barton, Belper, GB;
David C. Arters, Solon, OH (US);
Jeffry G. Dietz, Shaker Hts., OH (US);
Paul R. Stevenson, Belper, GB;
David J. Moreton, Belper, GB;
William R. S. Barton, Belper, GB;
David C. Arters, Solon, OH (US);
Jeffry G. Dietz, Shaker Hts., OH (US);
The Lubrizol Corporation, Wickliffe, OH (US);
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.