US3836342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasoline containing a methyl phenol and an ether
Assignee: Sun Research and Development Co
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Filing: 1972-06-23
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Granted: 1974-09-17
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Expires: 1992-06-23
Abstract
Abstract A useful fuel for an internal combustion engine comprises a hydrocarbon base stock of gasoline boiling range, a methylsubstituted phenol and an ether containing a branched alkyl group and boiling below 460*F., said phenol and said ether each being present in amount (e.g., 0.1-15 wt. %) sufficient to increase the Research octane number (RON). The invention also includes a gasoline blending system. For example, preferred compositions can be made by blending 89 RON gasoline containing 5 vol. % p-cresol with 97 RON gasoline containing 5% methyl methoxy propane. Beneficial synergism is noted in such blends for RON blending values.
Inventors
- 👤 J Shang
- 👤 B Bisson
- 👤 R Wynkoop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:52
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/02; C10L1/023; C10L1/182; C10L1/183; C10L1/1832; C10L1/185; C10L1/1852
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
23 words
Gasoline according to claim 1 and wherein the amounts of said phenol and said ether are in the range of 0.1-15 wt. %.
Claim 2
Dependent Claim
34 words
Gasoline according to claim 2 and wherein the amount of said phenol is in the range of 0.1-10 wt. % and the total of said amounts is in the range of 1-15 wt. %.
Claim 3
Dependent Claim
12 words
Gasoline according to claim 1 and wherein said ether is methyl methoxypropane.
Claim 4
Dependent Claim
28 words
Gasoline according to claim 1 and wherein said phenol is selected from the group consisting of ortho, meta and paracresol and mixtures of two or more said cresols.
Claim 5
Dependent Claim
12 words
Gasoline according to claim 5 and wherein said ether is methyl methoxypropane.
Claim 6
Dependent Claim
13 words
Gasoline according to claim 6 and wherein said phenol consists essentially of paracresol.
Claim 7
Dependent Claim
41 words
Gasoline according to claim 6 and wherein said amount of said phenol is in the range of 0.5-15%, said amount of said ether is in the range of 0.5-15% and the total of said amounts is in the range of 1-16%.
Claim 8
Dependent Claim
18 words
Gasoline according to claim 8 and wherein the total of said amounts is in the range of 2-10%.
Claim 9
Dependent Claim
33 words
Gasoline according to claim 1 wherein said ether is selected from the group consisting of diisopropyl ether, diisobutyl ether, methyl isopentyl ether, methyl isopropyl ether, and mixtures of two or more said ethers.
Claim 10
Dependent Claim
23 words
The composition of claim 1 wherein said base stock contains in the range of 40-75% paraffins, 0-10% naphthenes, 0-20% olefins, and 20-40% aromatics.
Claim 11
Dependent Claim
25 words
The composition of claim 1 wherein said base stock has an RON in the range of 80-100 and an MON in the range of 75-95.
Claim 12
Dependent Claim
23 words
The composition of claim 12 wherein said base stock contains in the range of 50-60% paraffins, 1-10% naphthenes, 2-10% olefins and 28-38% aromatics.
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) | 1977-09-16 | 1978-03-18 | 1978-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-16 | 1982-03-18 | 1982-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-16 | 1986-03-18 | 1986-09-17 | $7700.00 | Window Closed / Lapsed |