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US 7,621,971 B2Granted
Detergent/anti-oxidant additives for fuels
AssigneeChemtura Corporation
InventorRonald J. Muir
Life of this patent
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Abstract
A composition is disclosed that comprises the reaction product of an acidic organic compound, a boron compound, and a basic organic compound. The composition is useful as a detergent additive for lubricants and hydrocarbon fuels.
Claims11
A composition comprising:
- A) a hydrocarbon fuel, and
- B) at least one reaction product of an acidic organic compound, a boron compound, and a basic organic compound selected from the group consisting of:
- N-hydroxyalkyl-piperazines, N-hydroxyalkyl-N′-alkyl piperazines, N-hydroxyalkyl-N′-cycloalkyl-piperazines, N-hydroxyalkyl-N′-alkyl hexahydropyrimidines, N-hydroxyalkyl-N′-cycloalkyl hexahydropyrimidines, N-hydroxyalkyl-N′-alkyl hexahydropyridazines, N-hydroxyalkyl-N′-cycloalkyl hexahydropyridazines, N-hydroxyalkyl- piperidines, N-hydroxyalkyl-N′-alkyl-imidazolidines, N-hydroxyalkyl-N′-cycloalkyl- imidazolidines, N-hydroxyalkyl-pyrrolidine, N-hydroxyalkyl-pyrazolidine, N-hydroxyalkyl- hydrogenated 1,2,3,-triazole, N-hydroxyalkyl-hydrogenated 1,2,4,-triazole, N-hydroxyalkyl-hydrogenated indole, N-hydroxyalkyl-hydrogenated carbazole, N-hydroxyalkyl-hydrogenated quinoline, N-hydroxyalkyl-hydrogenated acridine, N-hydroxyalkyl-hydrogenated phenazine, N-oxyalkyl-N′-hydrocarbyl-saturated cyclic diazines, and N-hydroxyalkyl-N′-hydrocarbyl-saturated cyclic diazines, wherein the reaction product is a metal free detergent and wherein the acidic organic compound is selected from the group consisting of:
- (A) alkyl substituted salicylic acids,
- (B) di-substituted salicylic acids,
- (C) oil soluble hydroxy carboxylic acids,
- (D) salicylic acid calixarenes,
- (E) sulfur-containing calixarenes,
- (F) acids of the formula:
- wherein R1 is hydrocarbon or halogen, R2 is hydrocarbon, and Ar is substituted or unsubstituted aryl,
- (G) acids of the formula:
- wherein X and X′ are independently selected from the group consisting of hydrogen, hydrocarbyl, and halogen, R is polymethylene or branched or unbranched alkylene, x is 0 or 1, and R1 is hydrogen or hydrocarbyl,
- (H) acids of the formula:
- wherein
- R1 and R2 are independently selected from the group consisting of hydrogen, hydrocarbyl groups, tertiary alkyl groups, and tertiary aralkyl groups, provided that both R1 and R2 are not hydrogen,
- R3 and R4 are independently selected from the group consisting of hydrogen, hydrocarbyl groups, aralkyl groups, and cycloalkyl groups, and
- x is from 0 to 24, inclusive;
- and
- (I) salts of the foregoing acids.
16 more elements
A composition comprising:
- A) a hydrocarbon fuel, and
- B) at least one reaction product of (i) an acidic organic compound selected from the group consisting of alkyl substituted salicylic acids and di-substituted salicylic acids, (ii) a boron compound, and (iii) an organic nitrogen base compound comprising an N-hydroxy alkyl moiety, selected from the group consisting of:
- N-hydroxyalkyl-piperazines, N-hydroxyalkyl-N′-alkyl piperazines, N-hydroxyalkyl-N′-cycloalkyl-piperazines, N-hydroxyalkyl-N′-alkyl hexahydropyrimidines, N-hydroxyalkyl-N′-cycloalkyl hexahydropyrimidines, N-hydroxyalkyl-N′-alkyl hexahydropyridazines, N-hydroxyalkyl-N′-cycloalkyl hexahydropyridazines, N-hydroxyalkyl-piperidines, N-hydroxyalkyl-N′-alkyl-imidazolidines, N-hydroxyalkyl-N′-cycloalkyl-imidazolidines, N-hydroxyalkyl-pyrrolidine, N-hydroxyalkyl-pyrazolidine, N-hydroxyalkyl-hydrogenated 1,2,3,-triazole, N-hydroxyalkyl-hydrogenated 1,2,4,-triazole, N-hydroxyalkyl- hydrogenated indole, N-hydroxyalkyl-hydrogenated carbazole, N-hydroxyalkyl-hydrogenated quinoline, N-hydroxyalkyl-hydrogenated acridine, N-hydroxyalkyl-hydrogenated phenazine, N-oxyalkyl-N′-hydrocarbyl-saturated cyclic diazines, and N-hydroxyalkyl-N′-hydrocarbyl-saturated cyclic diazines and the reaction product is:
- wherein R1 and R2 are independently selected hydrocarbyl groups, a is an integer of 1 or 2, provided that, where a is 2, the R1 groups are independently selected.
1 more element
Dependencies are inferred from the claim text.