Patent US3767574A successfully refreshed from Google Patents.
US3767574A
Expired / Lapsed
US
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Gasoline additive
Assignee: Phillips Petroleum Co
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Filing: 1971-12-06
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Granted: 1973-10-23
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Expires: 1991-12-06
Abstract
Abstract An oil composition, useful as a gasoline additive, is prepared by halogenating and aminating in succession a paraffinic lubricating oil to thus produce a composition having in the range of 2.0 to 26.0 weight percent halogen and 0.20 to 4.0 weight percent nitrogen.
Inventors
- 👤 S Schiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:49
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
25 words
The oil composition of claim 1 wherein said paraffinic oil has a maximum pour point of +10* F and an average molecular weight of 400.
Claim 2
Dependent Claim
15 words
The oil composition of claim 1 wherein said halogen is one of bromine and chlorine.
Claim 3
Dependent Claim
32 words
The oil composition of claim 1 wherein said primary amine is an aliphatic, cycloaliphatic, or aromatic compound having 2 to 10 carbon atoms per molecule, and at least one primary amine group.
Claim 4
Dependent Claim
36 words
The oil composition of claim 1 wherein the quantity of said halogen utilized to produce said halogenated oil product is in the range of 0.5 to 2 mols halogen per one mol of said paraffinic oil.
Claim 5
Dependent Claim
40 words
The oil composition of claim 1 wherein the quantity of said primary amine utilized to produce said oil composition is in the range of 0.5 to 5.0 equivalents of amine per equivalent of halogen contained in said halogenated oil product.
Claim 6
Dependent Claim
17 words
The oil composition of claim 1 wherein said halogen is chlorine and said primary amine is ethylenediamine.
Claim 7
Dependent Claim
17 words
The oil composition of claim 1 wherein said halogen is chlorine and said primary amine is diethylenetriamine.
Claim 8
Dependent Claim
17 words
The oil composition of claim 1 wherein said halogen is chlorine and said primary amine is triethylenetetramine.
Claim 9
Dependent Claim
17 words
The oil composition of claim 1 wherein said halogen is chlorine and said primary amine is 2-ethylhexylamine.
References Cited (Backward Citations)
US2696473A
Cited
US3280032A
Cited
US3227761A
Cited
US3275554A
Cited
US3438757A
Cited
US3573010A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |