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US3658496A
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Thermally stable fuel composition
Assignee: Texaco Inc
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Filing: 1968-04-03
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Granted: 1972-04-25
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Expires: 1988-04-03
Abstract
Abstract Thermally stable middle distillate or jet fuel composition containing in combination a Mannich base (alkyl-phenol-sulfideformaldehyde-alkylene diamine reaction product) polymeric acid and metal deactivator.
Inventors
- 👤 Jerzy J Bialy
- 👤 George W Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:53
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/188; C10L1/1881; C10L1/1883; C10L1/22; C10L1/228; C10L1/2283; C10L1/24; C10L1/2493
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
26 words
A middle distillate fuel composition according to claim 1 in which the alkyl radical R in said alkylphenol sulfide has from 10 to 18 carbon atoms.
Claim 2
Dependent Claim
27 words
A middle distillate fuel composition according to claim 1 in which said alkylphenol sulfide is tetrapropenylphenol sulfide (3: 2 mole ratio) and said alkylene diamine is ethylenediamine.
Claim 3
Dependent Claim
20 words
A middle distillate fuel composition according to claim 1 in which a and b each have the value of 2.
Claim 4
Dependent Claim
20 words
A middle distillate fuel composition according to claim 1 in which said polymeric acid is the dimer of linoleic acid.
Claim 5
Dependent Claim
18 words
A middle distillate fuel composition according to claim 1 in which said aldehyde-amine condensation product is N,N''-disalicylidene-1,2-propane diamine
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) | 1975-04-25 | 1975-10-25 | 1976-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-25 | 1979-10-25 | 1980-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-25 | 1983-10-25 | 1984-04-25 | $7700.00 | Window Closed / Lapsed |