# US 4,391,610 A · Liquid hydrocarbon fuel containing a corrosion inhibitor, dialkoxylated alkyl polyoxyalkyl primary amine

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- Number: US 4,391,610 A
- Document ID: US4391610A
- Status: Granted
- Kind: A
- Application number: 06/338,196
- Filed: 1982-01-08
- Granted: 1983-07-05
- Earliest claimed: 1982-01-08
- Assignees: Texaco Inc.
- Inventors: Rodney L. Sung; William M. Sweeney; Wheeler C. Crawford
- Web page: https://patentgrep.com/patent/US4391610A

## CPC

- C10L 1/2225: {hydroxy containing (C10L1/221 takes precedence)}
- C10L: FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS

## Abstract

A novel fuel composition containing a hydrocarbon boiling in the gasoline boiling range plus optionally ethanol or methanol plus, as a corrosion inhibitor, a dialkoxylated alkyl polyoxyalkyl primary amine ##STR1## typified by ##STR2##

## Claims

### Claim 1

A fuel composition for use in internal combustion engines comprising
(a) a major portion of a fuel containing a hydrocarbon boiling in the gasoline boiling range; and
(b) a minor corrosion-inhibiting amount of, as a corrosion inhibiting agent, a dialkoxylated alkyl polyalkoxy primary amine.

### Claim 2 (depends on 1)

A fuel composition as claimed in claim 1 wherein said fuel consists essentially of a gasoline.

### Claim 3 (depends on 1)

A fuel composition as claimed in claim 1 wherein said fuel additionally contains at least one alcohol selected from the group consisting of ethanol and methanol.

### Claim 4 (depends on 1)

A fuel composition as claimed in claim 1 wherein said fuel is a gasohol containing gasoline and additionally ethanol.

### Claim 5 (depends on 1)

A fuel composition as claimed in claim 1 wherein said minor corrosion inhibiting amount is 0.0001-0.2 weight percent.

### Claim 6 (depends on 1)

A fuel composition as claimed in claim 1 wherein said amine has the formula ##STR24## wherein R is an alkyl hydrocarbon group, R' and R" are divalent alkylene hydrocarbon group, x+y is 2-20, and a is 1-20.

### Claim 7 (depends on 6)

A fuel composition as claimed in claim 6 wherein R is a straight chain alkyl group.

### Claim 8 (depends on 6)

A fuel composition as claimed in claim 6 wherein R contains 1-20 carbon atoms.

### Claim 9 (depends on 6)

A fuel composition as claimed in claim 6 wherein R contains 10-15 carbon atoms.

### Claim 10 (depends on 6)

A fuel composition as claimed in claim 6 wherein R contains 10-12 carbon atoms.

### Claim 11 (depends on 6)

A fuel composition as claimed in claim 6 wherein R' contains 1-8 carbon atoms.

### Claim 12 (depends on 6)

A fuel composition as claimed in claim 6 wherein R' contains 2-3 carbon atoms.

### Claim 13 (depends on 6)

A fuel composition as claimed in claim 6 wherein R' is --C.sub.2 H.sub.4 --.

### Claim 14 (depends on 6)

A fuel composition as claimed in claim 6 wherein R" contains 1-8 carbon atoms.

### Claim 15 (depends on 6)

A fuel composition as claimed in claim 6 wherein R" contains 2-3 carbon atoms.

### Claim 16 (depends on 6)

A fuel composition as claimed in claim 6 wherein R" is ##STR25##

### Claim 17 (depends on 6)

A fuel composition as claimed in claim 6 wherein a is 1-5.

### Claim 18 (depends on 6)

A fuel composition as claimed in claim 6 wherein a is 1-2.

### Claim 19 (depends on 6)

A fuel composition as claimed in claim 6 wherein x is 15.

### Claim 20

A fuel composition for use in internal combustion engines comprising
(a) a major portion of a fuel containing a hydrocarbon boiling in the gasoline boiling range; and
(b) a minor corrosion-inhibiting amount, 0.002 w %-0.2 w % of as a corrosion inhibiting agent ##STR26## wherein x+y is about 20.