US 4,116,644 AGrant

Gasoline Compositions

Issue Date:1978-09-26

•6 Claims

Abstract

Fuel induction systems of internal combustion engines are cleansed by operating the engine on a gasoline containing a detergent amount of the condensation product of phenol, and preferably a high molecular weight alkylphenol, an aldehyde, and an amine having a H--N< group. Effectiveness is improved, especially when using a large amount of the detergent composition or when using the detergent composition with water intolerant gasolines, by inclusion of a demulsifier containing an aryl sulfonate, a polyether glycol, and an oxyalkylated phenol formaldehyde resin. The concentrates of this invention also include one or more alcohols of about 4 to about 10 carbon atoms, an aromatic solvent, and a corrosion inhibitor. This invention also comprises gasolines containing these concentrates; the concentrate being present in a small amount that confers carburetor detergency properties to the gasoline.

Metadata

Inventors

Philip F. Jackisch
Calvin J. Worrel

Application Information

Application Number:US 7642148

Filing Date:1977-01-31

Priority Date:1975-03-24

Art Unit:117

Classifications

IPC:

C10L 124

Field of Search:

4473;75;58;78;76;66

Patent Drawings

This patent does not have any drawings.

Claims

We claim:

1. A concentrate for use in liquid hydrocarbon fuel boiling in the gasoline boiling range containing (I) from about 35 to about 50 weigh percent of the reaction product of: (A) one mole part of an alkylphenol having the formula: ##STR9## wherein n is an integer from 1 to 2, and R.sup.1 is an aliphatic hydrocarbon radical having an average molecular weight of from about 400 to 1500; (B) from 1-5 mole parts of an aldehyde having the formula: ##STR10## wherein R.sub.2 is selected from hydrogen and alkyl radicals containing 1-6 carbon atoms; and (C) from 0.5-5 mole parts of an amine having at least one active hydrogen atom bonded to an amino nitrogen atom, and (II) from about 1.4 to about 5.6 weight percent of a demulsifying agent containing: (A) at least one oil-soluble amine, ammonium, alkaline earth metal, or alkali metal salt of an aryl sulfonic acid; (B) at least one oil-soluble polyether characterized by the presence within its structure of a group of the formula: wherein A is an alkylene group containing from 2 to about 7 carbon atoms and where x has an average value of from about 5 to about 200; and (C) oxyalkylated phenol formaldehyde resin of the formula ##STR11## wherein A represents an alkylene group containing from about 2 to about 10 carbon atoms, where m has an average value of from about 4 to about 200, and where R is an alkyl group of about from 1 to about 20 carbon atoms, (III) from about 20 to about 25 weight percent of a mononuclear or dinuclear aromatic hydrocarbon solvent, (IV) from about 20 to about 35 weight percent of an alkanol having from 4 to 10 carbon atoms, and (V) from about 3 to about 5 weight percent of a corrosion inhibitor.

2. A concentrate of claim 1 wherein said alkanol contains 4-10 carbon atoms.

3. A concentrate of claim 1 wherein said alkanol is a mixture of C.sub.6 -C.sub.10 alcohols.

4. Gasoline containing a minor but carburetor detergency effective amount of a concentrate of claim 1.

5. Gasoline containing a minor but carburetor detergency effective amount of a concentrate of claim 2.

6. Gasoline containing a minor but carburetor detergency effective amount of a concentrate of claim 3.

Patent Citations (5)

Patent	Date	Inventor
US2632695	1953-03-01	Landis et al.
US2807525	1957-09-01	Foreman
US3031284	1962-04-01	Andress, Jr.
US3752657	1973-08-01	Manary, Jr.
US3994698	1976-11-01	Worrel

Abstract

Claims

We claim:

2. A concentrate of claim 1 wherein said alkanol contains 4-10 carbon atoms.

3. A concentrate of claim 1 wherein said alkanol is a mixture of C.sub.6 -C.sub.10 alcohols.

4. Gasoline containing a minor but carburetor detergency effective amount of a concentrate of claim 1.

5. Gasoline containing a minor but carburetor detergency effective amount of a concentrate of claim 2.

6. Gasoline containing a minor but carburetor detergency effective amount of a concentrate of claim 3.

Patent

Date

Inventor

Cited By

US2632695

1953-03-01

Landis et al.

US2807525

1957-09-01

Foreman

US3031284

1962-04-01

Andress, Jr.

US3752657

1973-08-01

Manary, Jr.

US3994698

1976-11-01

Worrel