US4005993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel gasoline compositions
Assignee: Ethyl Corp
•
Filing: 1976-03-08
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Granted: 1977-02-01
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Expires: 1996-03-08
Abstract
Abstract Gasoline compositions and additive mixtures containing compounds having the formula ##STR1## wherein R 1 -R 3 and R'-R'" are each independently selected from hydrogen, hydrocarbyl radicals, and substituted hydrocarbyl radicals, in an amount sufficient to alleviate the plugging of certain catalysts being used in an engine exhaust system to lower the amount of undesirable constituents in exhaust gas from an engine being operated on gasoline containing a cyclopentadienyl manganese antiknock.
Inventors
- 👤 Leonard M. Niebylski
- 👤 Ellis B. Rifkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:42
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/02; C10L1/00; C10L1/10; C10L1/14; C10L10/06; C10L10/10; C10L1/18; C10L1/19; C10L1/20; C10L1/205; C10L1/22; C10L1/222; C10L1/2222; C10L1/223; C10L1/224; C10L1/30; C10L1/305
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
64 words
As a composition of matter, a gasoline for an internal combustion engine comprising i. an antiknock amount of a cyclopentadienyl manganese tricarbonyl antiknock compound, and ii. an amount sufficient to reduce plugging of an exhaust gas catalyst of a compound having the general formula: ##STR10## wherein R 1 -R 3 and R'-R'" are each independently selected from hydrogen, hydrocarbyl radicals, and substituted hydrocarbyl radicals.
Claim 2
Dependent Claim
64 words
As a composition of matter, a gasoline for an internal combustion engine comprising i. an antiknock amount of a cyclopentadienyl manganese tricarbonyl antiknock compound, and ii. an amount sufficient to reduce plugging of an exhaust gas catalyst of a compound having the general formula: ##STR10## wherein R 1 -R 3 and R'-R'" are each independently selected from hydrogen, hydrocarbyl radicals, and substituted hydrocarbyl radicals.
Claim 3
Dependent Claim
21 words
The composition of claim 1 wherein said cyclopentadienyl group is a hydrocarbon group containing from 5 to about 17 carbon atoms.
Claim 4
Dependent Claim
11 words
The composition of claim 2 wherein said cyclopentadienyl group is methylcyclopentadienyl.
Claim 5
Dependent Claim
21 words
The composition of claim 3 wherein said hydrocarbyl radical is an alkyl radical having from 1 to about 20 carbon atoms.
Claim 6
Dependent Claim
20 words
The composition of claim 4 wherein R 1 -R 3 are each independently selected from hydrocarbyl and substituted hydrocarbyl radicals.
Claim 7
Dependent Claim
17 words
The composition of claim 5 wherein R 1 , R 2 and R 3 are ethyl radicals.
Claim 8
Dependent Claim
12 words
The composition of claim 5 wherein R', R" and R'" are hydrogen.
Claim 9
Dependent Claim
9 words
The composition of claim 6 wherein R'-R'" are hydrogen.
Claim 10
Dependent Claim
81 words
A substantially lead-free gasoline for use with a noble metal exhaust gas purification catalyst, said gasoline comprising i. a cyclopentadienyl manganese tricarbonyl antiknock compound in an amount sufficient to improve the antiknock characteristics of said gasoline, and ii. a compound in an amount sufficient to reduce plugging of said noble metal exhaust gas purification catalyst, said compound having the general formula: ##STR11## wherein R 1 -R 3 and R'-R'" are each independently selected from hydrogen, hydrocarbyl radicals, and substituted hydrocarbyl radicals.
Claim 11
Dependent Claim
81 words
A substantially lead-free gasoline for use with a noble metal exhaust gas purification catalyst, said gasoline comprising i. a cyclopentadienyl manganese tricarbonyl antiknock compound in an amount sufficient to improve the antiknock characteristics of said gasoline, and ii. a compound in an amount sufficient to reduce plugging of said noble metal exhaust gas purification catalyst, said compound having the general formula: ##STR11## wherein R 1 -R 3 and R'-R'" are each independently selected from hydrogen, hydrocarbyl radicals, and substituted hydrocarbyl radicals.
Claim 12
Dependent Claim
21 words
The gasoline of claim 9 wherein said cyclopentadienyl group is a hydrocarbon group containing from 5 to about 17 carbon atoms.
Claim 13
Dependent Claim
11 words
The gasoline of claim 10 wherein said cyclopentadienyl group is methylcyclopentadienyl.
Claim 14
Dependent Claim
21 words
The gasoline of claim 11 wherein said hydrocarbyl radical is an alkyl radical having from 1 to about 20 carbon atoms.
Claim 15
Dependent Claim
20 words
The gasoline of claim 12 wherein R 1 -R 3 are each independently selected from hydrocarbyl and substituted hydrocarbyl radicals.
Claim 16
Dependent Claim
17 words
The gasoline of claim 13 wherein R 1 , R 2 and R 3 are ethyl radicals.
Claim 17
Dependent Claim
12 words
The gasoline of claim 12 wherein R', R" and R'" are hydrogen.
Claim 18
Dependent Claim
12 words
The gasoline of claim 14 wherein R', R" and R'" are hydrogen.
Claim 19
Dependent Claim
41 words
An additive fluid for gasoline comprising i. a cyclopentadienyl manganese tricarbonyl antiknock compound, and ii. a compound having the general formula: ##STR12## wherein R 1 -R 3 and R'-R'" are each independently selected from hydrogen, hydrocarbyl radicals, and substituted hydrocarbyl radicals.
Claim 20
Dependent Claim
41 words
An additive fluid for gasoline comprising i. a cyclopentadienyl manganese tricarbonyl antiknock compound, and ii. a compound having the general formula: ##STR12## wherein R 1 -R 3 and R'-R'" are each independently selected from hydrogen, hydrocarbyl radicals, and substituted hydrocarbyl radicals.
Claim 21
Dependent Claim
20 words
The additive fluid of claim 17 wherein said fluid contains an antiknock amount of said cyclopentadienyl manganese tricarbonyl antiknock compound.
Claim 22
Dependent Claim
30 words
The additive fluid of claim 17 wherein said fluid contains an amount sufficient to reduce the plugging of an exhaust gas catalyst of the compound having the general formula: ##STR13##
Claim 23
Dependent Claim
22 words
The additive fluid of claim 17 wherein said cyclopentadienyl group is a hydrocarbon group containing from 5 to about 17 carbon atoms.
Claim 24
Dependent Claim
12 words
The additive fluid of claim 20 wherein said cyclopentadienyl group is methylcyclopentadienyl.
Claim 25
Dependent Claim
22 words
The additive fluid of claim 21 wherein said hydrocarbyl radical is an alkyl radical having from 1 to about 20 carbon atoms.
Claim 26
Dependent Claim
21 words
The additive fluid of claim 20 wherein R 1 -R 3 are each independently selected from hydrocarbyl and substituted hydrocarbyl radicals.
Claim 27
Dependent Claim
18 words
The additive fluid of claim 23 wherein R 1 , R 2 and R 3 are ethyl radicals.
Claim 28
Dependent Claim
13 words
The additive fluid of claim 23 wherein R', R" and R'" are hydrogen.
Claim 29
Dependent Claim
13 words
The additive fluid of claim 24 wherein R', R" and R'" are hydrogen.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-02-01 | 1980-08-02 | 1981-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-02-01 | 1984-08-02 | 1985-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-02-01 | 1988-08-02 | 1989-02-01 | $7700.00 | Window Closed / Lapsed |