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US 2017/0321137 A1Published application
Quaternary ammonium amide and/or ester salts
AssigneeThe Lubrizol Corporation
InventorsPaul R. Stevenson, James C. Ray, David J. Moreton, James H. Bush
Life of this patent
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Abstract
The invention relates to quaternary ammonium amide and/or ester salts and their use as additives, including their use in fuels, such as diesel fuel. The invention particularly relates to the use of quaternary ammonium amide and/or ester salts as detergents in diesel fuels.
Claims15
A composition comprising a quaternary ammonium salt detergent containing an amide group, where the quaternized detergent comprises the reaction product of:
- (a) a non-quaternized detergent containing an amide group, where the detergent has a tertiary amine functionality;
- and
- (b) a quaternizing agent;
- and wherein the reaction of (a) and (b) is essentially free of any additional acid component other than an acid group present in the structure of the detergent;
- and wherein (b) the quaternizing agent comprises ethylene oxide, propylene oxide, butylene oxide, styrene oxide, or combinations thereof.
2 more elements
A process of making a quaternary ammonium salt detergent comprising:
- I. reacting (a) a non-quaternized detergent containing an amide group, where the detergent has a tertiary amine functionality with (b) a quaternizing agent;
- thereby obtaining a quaternized detergent;
- wherein a protic solvent is present during the reaction of (a) and (b) and wherein the reaction of (a) and (b) is free of any additional acid component other than an acid group present in the structure of the detergent;
- and
- wherein (b) the quaternizing agent comprises ethylene oxide, propylene oxide, butylene oxide, styrene oxide, or combinations thereof.
2 more elements
Dependencies are inferred from the claim text.