US4175927A
Expired / Lapsed
US
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Fuel compositions for reducing hydrocarbon emissions
Assignee: Ethyl Corp
•
Filing: 1978-03-27
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Granted: 1979-11-27
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Expires: 1998-03-27
Abstract
Abstract Exhaust hydrocarbon emissions of an internal combustion engine being operating on gasoline containing a cyclopentadienyl manganese antiknock are reduced by the addition of a dimer or a trimer acid or mixture of a dimer and a trimer acid produced by the polymerization or condensation of an unsaturated aliphatic monocarboxylic acid having between 16 and 18 carbon atoms per molecule to the gasoline.
Inventors
- 👤 Leonard M. Niebylski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:00
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/02; C10L1/00; C10L1/10; C10L1/14; C10L10/10; C10L1/18; C10L1/188; C10L1/1881; C10L1/1883; C10L1/30; C10L1/305
Claims Analysis
Total Claims: 40
Claim 1
Independent Claim
65 words
As a composition of matter, a gasoline for an internal combustion engine comprising (i) an organomanganese compound, and (ii) an exhaust emission reducing amount of a compound selected from a dimer acid, a trimer acid or a mixture of a dimer and trimer acid produced by the polymerization or condensation of an unsaturated aliphatic monocarboxylic acid having between 16 and 18 carbon atoms per molecule.
Claim 2
Dependent Claim
65 words
As a composition of matter, a gasoline for an internal combustion engine comprising (i) an organomanganese compound, and (ii) an exhaust emission reducing amount of a compound selected from a dimer acid, a trimer acid or a mixture of a dimer and trimer acid produced by the polymerization or condensation of an unsaturated aliphatic monocarboxylic acid having between 16 and 18 carbon atoms per molecule.
Claim 3
Dependent Claim
14 words
The composition of claim 1 wherein said organomanganese compound is a cyclopentadienyl manganese tricarbonyl.
Claim 4
Dependent Claim
19 words
The composition of claim 2 wherein said cyclopentadienyl group is a hydrocarbon group containing 5 to 17 carbon atoms.
Claim 5
Dependent Claim
11 words
The composition of claim 3 wherein said cyclopentadienyl group is methylcyclopentadienyl.
Claim 6
Dependent Claim
19 words
The composition of claim 1 wherein said exhaust emission reducing compound is the dimer acid derived from linoleic acid.
Claim 7
Dependent Claim
25 words
The composition of claim 5 containing from about 0.25 to about 10.0 grams per gallon of gasoline of said dimer acid derived from linoleic acid.
Claim 8
Dependent Claim
24 words
The composition of claim 6 containing from about 0.5 to about 1.5 grams per gallon of gasoline of said dimer acid of linoleic acid.
Claim 9
Dependent Claim
78 words
As a composition of matter, a gasoline for an internal combustion engine comprising (i) an organomanganese antiknock compound in an amount sufficient to improve the antiknock characteristics of said gasoline, and (ii) an exhaust emission reducing amount of a compound selected from a dimer acid, a trimer acid or a mixture of a dimer and trimer acid produced by the polymerization or condensation of an unsaturated aliphatic monocarboxylic acid having between 16 and 18 carbon atoms per molecule.
Claim 10
Dependent Claim
78 words
As a composition of matter, a gasoline for an internal combustion engine comprising (i) an organomanganese antiknock compound in an amount sufficient to improve the antiknock characteristics of said gasoline, and (ii) an exhaust emission reducing amount of a compound selected from a dimer acid, a trimer acid or a mixture of a dimer and trimer acid produced by the polymerization or condensation of an unsaturated aliphatic monocarboxylic acid having between 16 and 18 carbon atoms per molecule.
Claim 11
Dependent Claim
14 words
The composition of claim 8 wherein said organomanganese compound is a cyclopentadienyl manganese tricarbonyl.
Claim 12
Dependent Claim
19 words
The composition of claim 9 wherein said cyclopentadienyl group is a hydrocarbon group containing 5 to 17 carbon atoms.
Claim 13
Dependent Claim
11 words
The composition of claim 10 wherein said cyclopentadienyl group is methylcyclopentadienyl.
Claim 14
Dependent Claim
23 words
The composition of claim 11 containing from about 0.005 to about 10.0 grams of manganese per gallon of gasoline as methylcyclopentadienyl manganese tricarbonyl.
Claim 15
Dependent Claim
23 words
The composition of claim 12 containing from about 0.05 to about 6.0 grams of manganese per gallon of gasoline as methylcyclopentadienyl manganese tricarbonyl.
Claim 16
Dependent Claim
23 words
The composition of claim 13 containing from about 0.05 to about 0.25 grams of manganese per gallon of gasoline as methylcyclopentadienyl manganese tricarbonyl.
Claim 17
Dependent Claim
23 words
The composition of claim 14 containing from about 0.05 to about 0.125 grams of manganese per gallon of gasoline as methylcyclopentadienyl manganese tricarbonyl.
Claim 18
Dependent Claim
19 words
The composition of claim 8 wherein said exhaust emission reducing compound is the dimer acid derived from linoleic acid.
Claim 19
Dependent Claim
24 words
The composition of claim 16 containing from about 0.25 to about 10.0 grams per gallon of gasoline of said dimer acid of linoleic acid.
Claim 20
Dependent Claim
24 words
The composition of claim 17 containing from about 0.5 to about 1.5 grams per gallon of gasoline of said dimer acid of linoleic acid.
Claim 21
Independent Claim
70 words
A method for reducing exhaust emission from an internal combustion engine that operates on a gasoline containing an organomanganese compound which method comprises adding to said gasoline an exhaust emission reducing amount of a dimer acid, a trimer acid or a mixture of a dimer acid and trimer acid produced by the polymerization or condensation of an unsaturated aliphatic monocarboxylic acid having between 16 and 18 carbon atoms per molecule.
Claim 22
Independent Claim
70 words
A method for reducing exhaust emission from an internal combustion engine that operates on a gasoline containing an organomanganese compound which method comprises adding to said gasoline an exhaust emission reducing amount of a dimer acid, a trimer acid or a mixture of a dimer acid and trimer acid produced by the polymerization or condensation of an unsaturated aliphatic monocarboxylic acid having between 16 and 18 carbon atoms per molecule.
Claim 23
Dependent Claim
14 words
The method of claim 19 wherein said organomanganese compound is a cyclopentadienyl manganese compound.
Claim 24
Dependent Claim
19 words
The method of claim 20 wherein said cyclopentadienyl group is a hydrocarbon group containing 5 to 17 carbon atoms.
Claim 25
Dependent Claim
11 words
The method of claim 21 wherein said cyclopentadienyl group is methylcyclopentadienyl.
Claim 26
Dependent Claim
19 words
The method of claim 19 wherein said exhaust emission reducing compound is the dimer acid derived from linoleic acid.
Claim 27
Dependent Claim
30 words
The method of claim 23 wherein said exhaust emission reducing amount of said dimer acid of linoleic acid is from about 0.25 to about 10.0 grams per gallon of gasoline.
Claim 28
Dependent Claim
31 words
The method of claim 24 wherein said exhaust emission reducing amount of said dimer acid derived from linoleic acid is from about 0.5 to about 1.5 grams per gallon of gasoline.
Claim 29
Independent Claim
83 words
A method for reducing exhaust emissions from an internal combustion engine that operates on a gasoline containing an organomanganese antiknock compound in an amount sufficient to improve the antiknock characteristics of said gasoline which method comprises adding to said gasoline an exhaust emission reducing amount of a dimer acid, a trimer acid or a mixture of a dimer and a trimer acid produced by the polymerization or condensation of an unsaturated aliphatic monocarboxylic acid having between 16 and 18 carbon atoms per molecule.
Claim 30
Independent Claim
83 words
A method for reducing exhaust emissions from an internal combustion engine that operates on a gasoline containing an organomanganese antiknock compound in an amount sufficient to improve the antiknock characteristics of said gasoline which method comprises adding to said gasoline an exhaust emission reducing amount of a dimer acid, a trimer acid or a mixture of a dimer and a trimer acid produced by the polymerization or condensation of an unsaturated aliphatic monocarboxylic acid having between 16 and 18 carbon atoms per molecule.
Claim 31
Dependent Claim
14 words
The method of claim 26 wherein said organomanganese compound is a cyclopentadienyl manganese compound.
Claim 32
Dependent Claim
19 words
The method of claim 27 wherein said cyclopentadienyl group is a hydrocarbon group containing 5 to 17 carbon atoms.
Claim 33
Dependent Claim
11 words
The method of claim 28 wherein said cyclopentadienyl group is methylcyclopentadienyl.
Claim 34
Dependent Claim
30 words
The method of claim 29 wherein the amount of said methylcyclopentadienyl manganese tricarbonyl is sufficient to provide from about 0.005 to about 10 grams of manganese per gallon of gasoline.
Claim 35
Dependent Claim
30 words
The method of claim 30 wherein the amount of said methylcyclopentadienyl manganese tricarbonyl is sufficient to provide from about 0.05 to about 6.0 grams of manganese per gallon of gasoline.
Claim 36
Dependent Claim
30 words
The method of claim 31 wherein the amount of said methylcyclopentadienyl manganese tricarbonyl is sufficient to provide from about 0.05 to about 0.25 grams of manganese per gallon of gasoline.
Claim 37
Dependent Claim
30 words
The method of claim 32 wherein the amount of said methylcyclopentadienyl manganese tricarbonyl is sufficient to provide from about 0.05 to about 0.125 grams of manganese per gallon of gasoline.
Claim 38
Dependent Claim
19 words
The method of claim 26 wherein said exhaust emission reducing compound is the dimer acid derived from linoleic acid.
Claim 39
Dependent Claim
31 words
The method of claim 34 wherein said exhaust emission reducing amount of said dimer acid derived from linoleic acid is from about 0.25 to about 10.0 grams per gallon of gasoline.
Claim 40
Dependent Claim
31 words
The method of claim 35 wherein said exhaust emission reducing amount of said dimer acid derived from linoleic acid is from about 0.5 to about 1.5 grams per gallon of gasoline.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-26 | 1983-05-28 | 1983-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-26 | 1987-05-28 | 1987-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-26 | 1991-05-28 | 1991-11-27 | $7700.00 | Window Closed / Lapsed |