Quaternary ammonium amide and/or ester salts

Patent metadata

Field	Value
Publication number	US-10023819-B2
Application number	US-201514609496-A
Country	US
Kind code	B2
Filing date	Jan 30, 2015
Priority date	May 15, 2009
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

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.

First claim

We claim:

1. A composition comprising a quaternary ammonium salt detergent containing an ester group, where the quaternized detergent comprises the reaction product of:
(a) the product of a hydrocarbyl-substituted acylating agent and at least one of N,N-dimethylaminopropanol, N,N-diethylaminopropanol, N,N-diethylaminobutanol, 1-[2-hydroxyethyl]piperidine, 2-[2-(dimethylamine)ethoxy]-ethanol, 2-dimethylamino-2-methyl-1-propanol, or combinations thereof; and
(b) a quaternizing agent comprising ethylene oxide, propylene oxide, butylene oxide, styrene oxide, or combinations thereof; and

wherein a protic solvent is present during the reaction of (a) and (b) 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.

2. The composition of claim 1 , wherein the protic solvent comprises water and/or a linear or branched alcohol containing 1 to 10 carbon atoms.

3. The composition of claim 1 , wherein the hydrocarbyl-substituted acylating agent comprises the reaction product of a polyolefin and a α,β-monounsaturated C 4 to C 10 anhydride.

4. The composition of claim 1 , wherein the hydrocarbyl-substituted acylating agent comprises polyisobutylene succinic anhydride.

5. The composition of claim 1 , wherein the quaternized detergent comprises the product of a hydrocarbyl-substituted acylating agent and at least one of 1-[2-hydroxyethyl]piperidine, 2-[2-(dimethylamine)ethoxy]-ethanol, 2-dimethylamino-2-methyl-1-propanol, or combinations thereof.

6. A fuel composition comprising the composition of claim 1 .

7. The fuel composition of claim 6 , wherein said fuel composition is a liquid at ambient and/or operating conditions.

8. The fuel composition of claim 6 , wherein said fuel composition is a hydrocarbon fuel, a non-hydrocarbon fuel, or mixture thereof.

9. The fuel composition of claim 6 , wherein said fuel composition is a gasoline or a diesel fuel.

10. The fuel composition of claim 6 , further comprising one or more fuel additives other than the quaternary ammonium salt detergent.

11. A method of operating an internal combustion engine or open flame burner comprising supplying to the engine or burner the fuel composition of claim 6 .

Assignees

• Lubrizol Corp

Inventors

• Stevenson Paul R
• Ray James C
• Moreton David J
• Bush James H

Classifications

• C10L1/2222 Primary

  (cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates (C10L1/221 takes precedence) · CPC title

• C10L2230/14

  for improving storage or transport of the fuel · CPC title

• C10L1/2383

  Polyamines or polyimines, or derivatives thereof {(poly)amines and imines; derivatives thereof (substituted by a macromolecular group containing 30C) (C10L1/221 takes precedence)} · CPC title

• C10L2200/0423

  Gasoline · CPC title

• C10L10/18

  use of detergents or dispersants for purposes not provided for in groups C10L10/02 - C10L10/16 · CPC title