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US 2017/0218291 A1Published application
Quaternary ammonium compounds and their use as fuel or lubricant additives
AssigneeInnospec Limited
InventorsJacqueline Reid, Stephen L. Cook
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Abstract
A quaternary ammonium salt of formula wherein each of R1, R2, R3 and R4 is independently selected from an optionally substituted alkyl, alkenyl or aryl group having less than 8 carbon atoms and R5 is hydrogen or an optionally substituted hydrocarbyl group.
Claims21
A quaternary ammonium salt of formula:
- wherein each R1, R2, R3 and R4 is independently selected from an optionally substituted alkyl, alkenyl or aryl group having less than 8 carbon atoms and R5 is hydrogen or an optionally substituted hydrocarbyl group.
A method of preparing a quaternary ammonium salt, the method comprising reacting (a) a tertiary amine of formula R1R2R3N with (b) an acid-activated alkylating agent in the presence of (c) a carboxylic acid of formula R5COOH.
20-22. (canceled)
Dependencies are inferred from the claim text.