Patent US3976437A successfully refreshed from Google Patents.
US3976437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising a methyl phenol and an ether for gasoline fuels
Assignee: Sun Ventures Inc
•
Filing: 1974-09-13
•
Granted: 1976-08-24
•
Expires: 1994-09-13
Abstract
Abstract A useful additive for gasoline is a mixture of a methyl-substituted phenol and an ether containing a branched alkyl group and boiling below 460°F. Preferably, the phenol and ether are present in amounts and in relative proportions sufficient to provide a synergistic increase in the research octane number of a gasoline. A preferred composition contains one part by volume of para-cresol to from 0.1 to 10 parts of methyl methoxy propane. The composition can also contain an aliphatic alcohol, an octane boosting cerium compound and conventional gasoline additives.
Inventors
- 👤 Jer-Yu Shang
- 👤 Barry A. Bisson
- 👤 Raymond Wynkoop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:48
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/02; C10L1/023; C10L1/10; C10L1/14; C10L1/18; C10L1/182; C10L1/183; C10L1/1832; C10L1/185; C10L1/1852
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
67 words
Composition, useful for increasing the research octane number of gasoline, comprising a mixture of a methyl-substituted phenol and a hydrocarbyl ether having at least one branched alkyl group and boiling below 460°F, said phenol and said. ether each being present in amount sufficient to increase the research octane number of a hydrocarbon gasoline base stock having a research octane number in the range of 85 to 95.
Claim 2
Dependent Claim
67 words
Composition, useful for increasing the research octane number of gasoline, comprising a mixture of a methyl-substituted phenol and a hydrocarbyl ether having at least one branched alkyl group and boiling below 460°F, said phenol and said. ether each being present in amount sufficient to increase the research octane number of a hydrocarbon gasoline base stock having a research octane number in the range of 85 to 95.
Claim 3
Dependent Claim
28 words
Composition according to claim 1 and wherein the amounts of said mixture of said phenol and said ether are in the range of 15 to 100 volume percent.
Claim 4
Dependent Claim
28 words
Composition according to claim 1 and wherein the relative proportion of said phenol to said ether is in the range of 1 to 20 to 20 to 1.
Claim 5
Dependent Claim
12 words
Composition according to claim 1 and wherein said ether is methyl methoxypropane.
Claim 6
Dependent Claim
28 words
Composition according to claim 1 and wherein said phenol is selected from the group consisting of ortho, meta and para-cresol and mixtures of two or more said cresols.
Claim 7
Dependent Claim
12 words
Composition according to claim 5 and wherein said ether is methyl methoxypropane.
Claim 8
Dependent Claim
13 words
Composition according to claim 6 and wherein said phenol consists essentially of para-cresol.
Claim 9
Dependent Claim
50 words
Composition according to claim 6 and wherein the amount of said phenol is in the range of 5 to 95 percent, said amount of said ether is in the range of 5 to 95 percent and the total of said amounts is in the range of 10 to 100 percent.
Claim 10
Dependent Claim
20 words
Composition according to claim 1 and containing as an additional component an acyclic alcohol having one to four carbon atoms.
Claim 11
Dependent Claim
28 words
Composition according to claim 9 wherein said alcohol is monohydroxy and is present in volume proportion of 1 to 15 to 15 to 1 based on said ether.
References Cited (Backward Citations)
US2240040A
Cited
US2434650A
Cited
US2952612A
Cited
US3030195A
Cited
US3082070A
Cited
US3224848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |