US3948619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline composition
Assignee: Ethyl Corp
•
Filing: 1973-02-15
•
Granted: 1976-04-06
•
Expires: 1993-02-15
Abstract
Abstract Fuel induction systems of internal combustion engines are cleaned 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 by inclusion of a mineral polyolefin having an average molecular weight of from about 300-2000. The condensation product is also effective in other distillate fuels.
Inventors
- 👤 Calvin J. Worrel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:21
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/234; C10L1/238; C10L1/2383; C10L1/143; C10L1/146; C10L1/221; C10L1/16; C10L1/1616; C10L1/1625; C10L1/1633; C10L1/1641; C10L1/18; C10L1/182; C10L1/1822; F; F02; F02B; F02B77/00; F02B77/04
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
119 words
A liquid hydrocarbon fuel of the gasoline boiling range containing I. the reaction product of: A. one mole part of an alkylphenol having the formula: ##SPC3## wherein n is an integer from 1 to 2, and R 1 is an aliphatic hydrocarbon radical having a molecular weight of from about 400 to 1500; B. from 1-5 mole parts of an aldehyde having the formula: ##EQU6## wherein R 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 amino group having at least one active hydrogen atom, and Ii. normally liquid hydrocarbon polyolefin having an average molecular weight of from about 300 to about 2000.
Claim 2
Dependent Claim
119 words
A liquid hydrocarbon fuel of the gasoline boiling range containing I. the reaction product of: A. one mole part of an alkylphenol having the formula: ##SPC3## wherein n is an integer from 1 to 2, and R 1 is an aliphatic hydrocarbon radical having a molecular weight of from about 400 to 1500; B. from 1-5 mole parts of an aldehyde having the formula: ##EQU6## wherein R 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 amino group having at least one active hydrogen atom, and Ii. normally liquid hydrocarbon polyolefin having an average molecular weight of from about 300 to about 2000.
Claim 3
Dependent Claim
15 words
A gasoline composition of claim 1 wherein said aldehyde is selected from formaldehyde and paraformaldehyde.
Claim 4
Dependent Claim
22 words
A gasoline composition of claim 2 wherein R 1 is a polyalkene group having a molecular weight of from 400 to 1500.
Claim 5
Dependent Claim
22 words
A gasoline composition of claim 3 wherein R 1 is a polybutene group having a molecular weight of from 900 to 1100.
Claim 6
Dependent Claim
22 words
A gasoline composition of claim 3 wherein R 1 is a polypropylene group having a molecular weight of from 900 to 1100.
Claim 7
Dependent Claim
84 words
A gasoline composition of claim 2 wherein said amine is a diamine having the formula: ##EQU7## wherein R 3 is a divalent alkylene radical containing 1-6 carbon atoms, and R 4 and R 5 are selected from the group consisting of alkyl radicals containing from 1-6 carbon atoms and radicals having the formula: --R.sub.6 --X wherein R 6 is a divalent alkylene radical containing from 1-6 carbon atoms, and X is selected from the group consisting of the hydroxyl radical and the amine radical.
Claim 8
Dependent Claim
11 words
A gasoline composition of claim 6 wherein said diamine is N,N-dimethyl-1,3-propandiamine.
Claim 9
Dependent Claim
26 words
A gasoline composition of claim 7 wherein said alkylphenol is a polybutene-substituted phenol wherein said polybutene substituent has an average molecular weight of from about 900-1100.
Claim 10
Dependent Claim
41 words
A gasoline composition of claim 8 wherein said detergent is the reaction product formed by the reaction of about 2 mole parts of said polybutene-substituted phenol, about 3 mole parts of said formaldehyde and about 2 mole parts of said N,N-dimethyl-1,3-propanediamine.
Claim 11
Dependent Claim
66 words
A gasoline composition of claim 3 wherein said amine is an alkylene polyamine of the formula: ##EQU8## wherein R 8 , R 9 and R 10 are selected from hydrogen and lower alkyl radicals containing 1-4 carbon atoms, and R 7 is a divalent saturated aliphatic hydrocarbon radical containing from 2 to about 4 carbon atoms and m is an integer from 0 to about 4.
Claim 12
Dependent Claim
27 words
A gasoline composition of Claim 10 wherein said alkylene polyamine is an ethylene polyamine selected from ethylene diamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, and mixtures thereof.
Claim 13
Dependent Claim
13 words
A gasoline composition of claim 11 wherein said alkylphenol is a polybutene-substituted phenol.
Claim 14
Dependent Claim
13 words
A gasoline composition of claim 11 wherein said alkylphenol is a polypropylene-substituted phenol.
Claim 15
Dependent Claim
20 words
A gasoline composition of claim 1 containing from about 0.05 to about 0.5 volume percent of a mineral lubricating oil.
Claim 16
Dependent Claim
29 words
A gasoline composition of claim 1 wherein said polyolefin has a molecular weight of from about 500 to about 2000 and is prepared from C 2 -C 6 monoolefin.
Claim 17
Dependent Claim
17 words
A gasoline composition of claim 15 wherein said polyolefin is prepared from C 2 -C 4 monoolefin.
Claim 18
Dependent Claim
20 words
A gasoline composition of claim 16 wherein said polyolefin has a molecular weight of from about 500 to about 1200.
Claim 19
Dependent Claim
20 words
A gasoline composition of claim 16 wherein said polyolefin has a molecular weight of from about 850 to about 1050.
Claim 20
Dependent Claim
13 words
A gasoline composition of claim 18 wherein said polyolefin is prepared from butene.
Claim 21
Dependent Claim
46 words
A gasoline composition of claim 1 wherein said polyolefin is a normally liquid olefin hydrocarbon having an average molecular weight of from about 350 to about 1500, made by the oligomerization of a mixture of aliphatic monoolefins containing from about 12 to about 32 carbon atoms.
Claim 22
Dependent Claim
154 words
A concentrate for use in liquid hydrocarbon fuel boiling in the gasoline boiling range containing I. from 0.8-30 weight percent of the reaction product of: A. one mole part of an alkylphenol having the formula: ##SPC4## wherein n is an integer from 1 to 2, and R 1 is an aliphatic hydrocarbon radical having a molecular weight of from about 400 to 1500; B. from 1-5 mole parts of an aldehyde having the formula: ##EQU9## wherein R 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 amino group having at least one active hydrogen atom, Ii. from 0.5-12 weight percent of aromatic hydrocarbon, Iii. from 0.1-12 weight percent of an alkanol having about 6 or more carbon atoms, and Iv. from 50-98% by weight of a normally liquid hydrocarbon polyolefin having an average molecular weight of from 300-2000.
Claim 23
Dependent Claim
154 words
A concentrate for use in liquid hydrocarbon fuel boiling in the gasoline boiling range containing I. from 0.8-30 weight percent of the reaction product of: A. one mole part of an alkylphenol having the formula: ##SPC4## wherein n is an integer from 1 to 2, and R 1 is an aliphatic hydrocarbon radical having a molecular weight of from about 400 to 1500; B. from 1-5 mole parts of an aldehyde having the formula: ##EQU9## wherein R 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 amino group having at least one active hydrogen atom, Ii. from 0.5-12 weight percent of aromatic hydrocarbon, Iii. from 0.1-12 weight percent of an alkanol having about 6 or more carbon atoms, and Iv. from 50-98% by weight of a normally liquid hydrocarbon polyolefin having an average molecular weight of from 300-2000.
Claim 24
Dependent Claim
23 words
A concentrate of claim 21 wherein said polyolefin has a molecular weight of 500-2000 and is prepared from C 2 -C 6 monoolefin.
Claim 25
Dependent Claim
29 words
A concentrate of claim 21 wherein R 1 is a polyalkene group prepared from a C 2 -C 4 olefin, and said aldehyde is selected from formaldehyde and paraformaldehyde.
Claim 26
Dependent Claim
29 words
A concentrate of claim 23 wherein R 1 is a polybutene group having a molecular weight of from 900-1150 and said amine is selected from N,N-dimethyl-1,3-propane diamine and tetraethylenepentamine.
Claim 27
Dependent Claim
22 words
A concentrate of claim 21 wherein said alkanol is a mixture containing C 6 , C 8 and C 10 normal alkanols.
Claim 28
Dependent Claim
28 words
A concentrate of claim 21 wherein said polyolefin is a normally liquid olefin hydrocarbon prepared by polymerizing a mixture containing monoolefins having 12 to about 32 carbon atoms.
References Cited (Backward Citations)
GB683197A
Cited
US3020134A
Cited
US3031278A
Cited
US3035905A
Cited
US3269810A
Cited
US3413347A
Cited
US3502451A
Cited
US3649229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-06 | 1979-10-06 | 1980-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-06 | 1983-10-06 | 1984-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-06 | 1987-10-06 | 1988-04-06 | $7700.00 | Window Closed / Lapsed |