US4240803A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel containing novel detergent
Assignee: Mobil Oil AS
•
Filing: 1978-09-11
•
Granted: 1980-12-23
•
Expires: 1998-09-11
Abstract
Abstract Fuel compositions are provided that contain an alkenylsuccinimide, where the alkenyl is derived from a mixture of C16-C28 olefins.
Inventors
- 👤 Harry J. Andress, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:05
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
125 words
A liquid hydrocarbon fuel compsition comprising fuel and a detergent amount of an alkenylsuccinimide prepared by reacting, at a temperature within the range of from about 150° C. to about 250° C., an alkenylsuccinic acid or anhydride, wherein the alkenyl is derived from a mixture of olefins having the composition: ______________________________________
Ingredient % By Wt. Other
______________________________________
Olefin
C.sub.16 2, maximum
C.sub.18 5-15
C.sub.20 42-50
C.sub.22 20-28
C.sub.24 6-12
C.sub.26 1-3
C.sub.28 2, maximum
Alcohol 10, maximum
Paraffin 5, maximum
Iodine No. 74, minimum
Peroxide 10 ppm, maximum
Olefin types
Vinyl 28-44
Branched 30-50
Internal 26-42
______________________________________ with a polyalkylamine polyamine of the formula NH.sub.2 --(RNH).sub.n R--NH.sub.2 wherein R is alkylene having from 1 to 5 carbon atoms and n is from 0 to 10.
Claim 2
Dependent Claim
125 words
A liquid hydrocarbon fuel compsition comprising fuel and a detergent amount of an alkenylsuccinimide prepared by reacting, at a temperature within the range of from about 150° C. to about 250° C., an alkenylsuccinic acid or anhydride, wherein the alkenyl is derived from a mixture of olefins having the composition: ______________________________________
Ingredient % By Wt. Other
______________________________________
Olefin
C.sub.16 2, maximum
C.sub.18 5-15
C.sub.20 42-50
C.sub.22 20-28
C.sub.24 6-12
C.sub.26 1-3
C.sub.28 2, maximum
Alcohol 10, maximum
Paraffin 5, maximum
Iodine No. 74, minimum
Peroxide 10 ppm, maximum
Olefin types
Vinyl 28-44
Branched 30-50
Internal 26-42
______________________________________ with a polyalkylamine polyamine of the formula NH.sub.2 --(RNH).sub.n R--NH.sub.2 wherein R is alkylene having from 1 to 5 carbon atoms and n is from 0 to 10.
Claim 3
Dependent Claim
10 words
The composition of claim 1 wherein the fuel is gasoline.
Claim 4
Dependent Claim
11 words
The composition of claim 1 wherein the polyamine is tetraethylene pentamine.
Claim 5
Dependent Claim
11 words
The composition of claim 1 wherein the polyamine is diethylene triamine.
Claim 6
Dependent Claim
24 words
The composition of claim 1 wherein there is present during reaction from 1 to 12 moles of anhydride or acid per mole of polyamine.
Claim 7
Dependent Claim
21 words
The composition of claim 1 containing from about 0.1 lb. to about 200 lbs. of alkenylsuccinimide per 1000 barrels of fuel.
References Cited (Backward Citations)
GB922831A
Cited
US3172892A
Cited
US3219666A
Cited
US3223495A
Cited
US3281428A
Cited
US3497334A
Cited
US3272746A
Cited
US3511780A
Cited
US3445386A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-12-23 | 1984-06-23 | 1984-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-12-23 | 1988-06-23 | 1988-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-12-23 | 1992-06-23 | 1992-12-23 | $7700.00 | Window Closed / Lapsed |