US3652242A
Expired / Lapsed
US
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Liquid hydrocarbon fuels containing alkylamine salts
Assignee: Mobil Oil AS
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Filing: 1970-02-02
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Granted: 1972-03-28
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Expires: 1990-02-02
Abstract
Abstract Liquid hydrocarbon fuels are provided which contain, as stabilizing agents, neutral primary alkylamine salts of an alkyl phosphoric acid ester having from two to eight phosphorous atoms, an acid number from about 200 to about 750 and from one to 12 carbon atoms per alkyl group, wherein the primary alkylamine comprises a mixture of branched chain amines having from about eight to about 18 carbon atoms and having the primary amine groups attached to a tertiary carbon atom.
Inventors
- 👤 Harry J Andress Jr
- 👤 Julius Capowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:10
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10L1/2658
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
61 words
A fuel as defined in claim 1 wherein the stabilizer is the neutral primary alkyl amine salt of tripolyphosphoric acid wherein said acid corresponds to the acid form of Na5P3O10, the primary alkyl amine is a mixture of branched chain amines having from about eight to 18 carbon atoms, the primary amine group is directly attached to a tertiary carbon atom.
Claim 2
Dependent Claim
28 words
A fuel as defined in claim 1 wherein the alkylamine salt is present in an amount from about 1 to about 200 pounds per 1,000 barrels of fuel.
Claim 3
Dependent Claim
28 words
A fuel as defined in claim 1 wherein the alkylamine salt is present in an amount from about 5 to about 25 pounds per 1,000 barrels of fuel.
Claim 4
Dependent Claim
38 words
A composition as defined in claim 1 wherein said liquid hydrocarbon fuel comprises a petroleum distillate having an initial boiling point of at least about 90* F. and an end boiling point not higher than about 750* F.
Claim 5
Dependent Claim
20 words
A fuel as defined in claim 1 wherein said alkylamine salt is a t-alkyl primary amine salt of tripolyphosphoric acid.
Claim 6
Dependent Claim
22 words
A fuel as defined in claim 1 wherein said alkylamine salt is a tetra t-alkyl primary amine salt of ethylenediamine tetraacetic acid.
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) | 1975-03-28 | 1975-09-27 | 1976-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-28 | 1979-09-27 | 1980-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-28 | 1983-09-27 | 1984-03-28 | $7700.00 | Window Closed / Lapsed |