US3920698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New organic compounds for use as fuel additives
Assignee: IFP Energies nouvelles
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Filing: 1974-04-08
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Granted: 1975-11-18
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Expires: 1994-04-08
Abstract
Abstract with a linear polyamine of the formula H2N-((CH2)-n - NH)m-R'' in which R1 and R2 are selected from the group consising of a hydrogen atom and a monovalent hydrocarbon radical of 1-30 carbon atoms, R'' is a monovalent aliphatic hydrocarbon radical having 630 carbon atoms, n is an integer from 3 to 10 and m is an integer from 1 to 10. Useful as gasoline additives are imidic reaction products of a maleic anhydride of the formula
Inventors
- 👤 Bernard Haemmerle
- 👤 Bernard Sillion
- 👤 Gaudemaris Gabriel De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:15
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/44; C07D207/444; C07D207/448; C07D207/452; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/26; C10L1/2633; C10L1/2658; C10L1/222; C10L1/224; C10L1/234; C10L1/238; C10L1/2383
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
11 words
AN IMIDIC REACTION PRODUCT OF A MALEIC ANHYDRIDE OF THE FORMULA
Claim 2
Dependent Claim
11 words
AN IMIDIC REACTION PRODUCT OF A MALEIC ANHYDRIDE OF THE FORMULA
Claim 3
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are CH3, n is 3, m is 1, and R'' is oleyl.
Claim 4
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are dodecyl, n is 3, m is 1, and R'' is oleyl.
Claim 5
Dependent Claim
23 words
A reaction product as defined by claim 1, wherein R1 and R2 are H, n is 5, mis 1, and R'' is stearyl.
Claim 6
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are H, n is 8, m is 1, and R'' is stearyl.
Claim 7
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are H, n is 10, m is 1, and R'' is oleyl.
Claim 8
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are C2H5, n is 3, m is 2, and R'' is oleyl.
Claim 9
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are C3H7, n is 3, m is 5, and R'' is oleyl.
Claim 10
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are C6H13, n is 3, m is 10, and R'' is oleyl.
Claim 11
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are H, n is 3, m is 1, and R'' is hexyl.
Claim 12
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are H, n is 3, m is 1, and R'' is dodecyl.
Claim 13
Dependent Claim
24 words
A reaction product as defined by claim 1, wherein R1 and R2 are H, n is 3, m is 1, and R'' is eicosyl.
Claim 14
Dependent Claim
16 words
A reaction product according to claim 1, wherein maleic anhydride is reacted with N-oleyl propane diamine.
Claim 15
Dependent Claim
16 words
A reaction product according to claim 1, wherein maleic anhydride is reacted with N-stearyl propane diamine.
References Cited (Backward Citations)
US3341542A
Cited
US3655351A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |