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AssigneeExxon Research & Engineering Co.
InventorsStanley J. Brois, Jack Ryer, Esther Winans
Estimating the term…
Ester derivatives of 1-aza-3,7-dioxabicyclo [3.3.0] oct-5-yl methyl alcohols which are the reaction products of organic acid materials, preferably long chain dicarboxylic anhydrides such as octadecenyl and polyisobutenylsuccinic anhydrides and aldehyde/tris [hydroxy-methyl] aminomethane (THAM) adducts or mixtures are oleaginous compositions which feature activity in gasoline as rust inhibitors and carburetor detergents; in automatic transmission fluids as friction modifiers and rust inhibitors; and, in automotive, industrial and lubricating oils as sludge dispersants, rust-inhibitors, friction modifiers and copper alloy corrosion inhibitors, the particular use depending on the molecular weight of the ester.
A petroleum fuel oil composition comprising a major amount of fuel oil and in the range of about 0.001 to 0.5 wt. % of an oil dispersible or soluble ester which is the ester reaction product of:
A gasoline containing in the range of about 0.001 to 0.5 wt. % of acid ester of 1-aza-3,7-dioxabicyclo [3.3.0] oct-5-yl methyl polyisobutylenesuccinate.
A gasoline containing in the range of about 0.001 to 0.5 wt. % of half acid ester of 1-aza-3,7-dioxabicyclo [3.3.0] oct-5-yl methyl octadecenylsuccinate.
A gasoline containing in the range of about 0.001 to 0.5 wt. % of half acid ester of 1-aza-3,7-dioxa-2,8-di-n-propyl-bicyclo[3.3.0] oct-5-yl methyl octadecenylsuccinate.
A gasoline containing in the range of about 0.001 to 0.5 wt. % of 1-aza-3,7-dioxabicyclo[3.3.0] oct-5-yl methyl stearate.
Dependencies are inferred from the claim text.