Nitrogen-free deposit control fuel additives and one step process for the making thereof
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United States of America Patent
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Sep 2, 2014
Grant Date -
Dec 20, 2012
app pub date -
Dec 17, 2010
filing date -
Dec 17, 2009
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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.
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