US4257780A
Expired / Lapsed
US
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Fuel compositions containing oxazolonium hydroxides
Assignee: Texaco Inc
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Filing: 1979-12-10
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Granted: 1981-03-24
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Expires: 1999-12-10
Abstract
Abstract Described are fuel compositions containing oxazolonium hydroxides as detergent and corrosion inhibitor additives.
Inventors
- 👤 Rodney L. Sung
- 👤 Peter Dorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:50
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/30; C07D263/34; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/232; C10L1/233
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
33 words
An oxazolonium hydroxide of the formula: ##STR2## wherein R is a hydrocarbyl radical having from 1 to 5 carbon atoms and R' is a hydrocarbyl radical having from 10 to 20 carbon atoms.
Claim 2
Dependent Claim
33 words
An oxazolonium hydroxide of the formula: ##STR2## wherein R is a hydrocarbyl radical having from 1 to 5 carbon atoms and R' is a hydrocarbyl radical having from 10 to 20 carbon atoms.
Claim 3
Dependent Claim
9 words
The compound of claim 1, being anhydro-2-lauroyl-3-methyl-4-(N'N'-methyl lauroyl-glycyl)-5-hydroxy-1,3-oxazolonium hydroxide.
Claim 4
Dependent Claim
8 words
The compound of claim 1, being anhydro-2-cocoyl-3-methyl-4-(N,N'-methyl-cocoyl-glycyl)-5-hydroxy-1,3-oxazolonium hydroxide.
Claim 5
Dependent Claim
27 words
A motor fuel composition comprising a mixture of hydrocarbons in the gasoline boiling range containing a detergent and corrosion inhibiting amount of a compound of claim 1.
Claim 6
Dependent Claim
11 words
The composition of claim 4, wherein said compound is anhydro-2-lauroyl-3-methyl-4-(N,N'-methyl-lauroyl-glycyl)-5-hydroxy-1,3-oxazolonium hydroxide.
Claim 7
Dependent Claim
12 words
The composition of claim 4, wherein said compound is anhydro-2-lauroyl-3-methyl-4-(N,N'-methyl lauroyl-glycyl)-5-hydroxy-1,3-oxazolonium hydroxide.
Claim 8
Dependent Claim
16 words
The composition of claim 4, containing at least 2.5 parts of said additive per thousand barrels.
Claim 9
Dependent Claim
18 words
The composition of claim 4, containing from about 20 to 200 parts of said additive per thousand barrels.
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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |