Exxonmobil Research and Engineering Company

Daniel Dawson Lowrey

Roger Grant Gaughan

Dennis H Hoskin

Thomas Mack Bell

William S Blazowski

Daniel Eugene Kadlecek

Tommy Mack Bell

Dennis Harold Hoskin

Aviation gasolines having an enhanced peak indicated mean effective pressure are provided by admixing with a leaded base aviation gasoline an aromatic amine of the formula NH&#x2014;Ar&#x2014;(R)wherein Ris selected from C-Calkyl, halogen, and mixtures thereof provided that when Ris alkyl it occupies the meta- or para-positions on the aromatic ring, Ar is a phenyl aromatic group and n is an integer from 0 to 3 to provide an aviation gasoline having a peak indicated mean effective pressure as determined by ASTM D-909 of greater than about 200 psi.

Leaded aviation gasoline

The present invention relates to an unleaded aminated aviation gasoline of high motor octane number (MON) and low toluene insoluble deposit formation containing an additive for controlling said deposits selected from the group consisting of high molecular weight hydrocarbyl amines, high molecular weight hydrocarbyl succinimide, high molecular weight hydrocarbyl substituted Mannish bases, and mixtures thereof, and optional carrier oil(s), to an additive concentrate for controlling toluene insoluble deposits, and to a method for producing the additive concentrate.

Unleaded aminated aviation gasoline exhibiting control of toluene insoluble deposits

A method is disclosed for reducing the freezing point of unleaded aminated aviation gasoline to &#x2212;58&#xb0; C. or lower by the addition of tert-amylphenylamine.

Method for reducing the freezing point of aminated aviation gasoline by the use of tertiaryamylphenylamine

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Westville, NJ, United States of America

Daniel Dawson Lowrey