US4194982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-sulfonylated polyalkenylsuccinimide and lubricant composition
Assignee: Afton Chemical Additives Corp
•
Filing: 1978-07-03
•
Granted: 1980-03-25
•
Expires: 1998-07-03
Abstract
Abstract An N-sulfonylated hydrocarbon-substituted succinimide represented by the formula: ##STR1## in which R and R' are hydrocarbon radicals and a lubricating oil composition for an internal combustion engine containing an N-sulfonylated hydrocarbon-substituted succinimide.
Inventors
- 👤 Kechia J. Chou
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:15
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C10; C10M; C10M135/00; C10M135/08; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
37 words
An N-sulfonylated succinimide represented by the formula: ##STR8## in which R is an aliphatic hydrocarbon radical having from 1 to 40 carbon atoms and R' is a hydrocarbon radical having from about 6 to 20 carbon atoms.
Claim 2
Dependent Claim
37 words
An N-sulfonylated succinimide represented by the formula: ##STR8## in which R is an aliphatic hydrocarbon radical having from 1 to 40 carbon atoms and R' is a hydrocarbon radical having from about 6 to 20 carbon atoms.
Claim 3
Dependent Claim
36 words
A compound according to claim 1 in which R is an aliphatic hydrocarbon radical having from about 6 to 20 carbon atoms and R' is a hydrocarbon radical having from about 7 to 16 carbon atoms.
Claim 4
Dependent Claim
19 words
A compound according to claim 1 in which R is an alkenyl radical and R' is an aryl radical.
Claim 5
Dependent Claim
42 words
A compound represented by the formula: ##STR9## in which R is an aliphatic hydrocarbon radical having from about 8 to 20 carbon atoms and R" and R"' each represent hydrogen or an aliphatic hydrocarbon radical having from 1 to 8 carbon atoms.
Claim 6
Dependent Claim
42 words
A compound represented by the formula: ##STR9## in which R is an aliphatic hydrocarbon radical having from about 8 to 20 carbon atoms and R" and R"' each represent hydrogen or an aliphatic hydrocarbon radical having from 1 to 8 carbon atoms.
Claim 7
Dependent Claim
1 words
N-tosyltetrapropenylsuccinimide.
Claim 8
Dependent Claim
1 words
N-tosyltetrapropenylsuccinimide.
Claim 9
Dependent Claim
1 words
N-benzenesulfonyltetrapropenylsuccinimide.
Claim 10
Dependent Claim
1 words
N-benzenesulfonyltetrapropenylsuccinimide.
Claim 11
Dependent Claim
1 words
N-dimethylbenzenesulfonyltripropenylsuccinimide.
Claim 12
Dependent Claim
1 words
N-dimethylbenzenesulfonyltripropenylsuccinimide.
Claim 13
Dependent Claim
82 words
A lubricating oil composition comprising a major portion of a hydrocarbon oil of lubricating viscosity, a minor amount of a metal-containing additive characterized by promoting the formation of hard deposits in an internal combustion engine and an effective deposit modifying amount of an N-sulfonylated hydrocarbon substituted succinimide represented by the formula: ##STR10## in which R is an aliphatic hydrocarbon radical having from about 1 to 40 carbon atoms and R' is a hydrocarbon radical having from about 6 to 20 carbon atoms.
Claim 14
Dependent Claim
82 words
A lubricating oil composition comprising a major portion of a hydrocarbon oil of lubricating viscosity, a minor amount of a metal-containing additive characterized by promoting the formation of hard deposits in an internal combustion engine and an effective deposit modifying amount of an N-sulfonylated hydrocarbon substituted succinimide represented by the formula: ##STR10## in which R is an aliphatic hydrocarbon radical having from about 1 to 40 carbon atoms and R' is a hydrocarbon radical having from about 6 to 20 carbon atoms.
Claim 15
Dependent Claim
38 words
A lubricating oil composition according to claim 8 in which R is an aliphatic hydrocarbon radical having from about 6 to 30 carbon atoms and R' is a hydrocarbon radical having from about 7 to 16 carbon atoms.
Claim 16
Dependent Claim
21 words
A lubricating oil composition according to claim 8 in which R is an alkenyl radical and R' is an aryl radical.
Claim 17
Dependent Claim
19 words
A lubricating oil composition according to claim 8 containing from about 0.01 to 10 weight percent of said succinimide.
Claim 18
Dependent Claim
15 words
A lubricating oil composition according to claim 8 in which said succinimide is N-tosyltetrapropenyl succinimide.
Claim 19
Dependent Claim
15 words
A lubricating oil composition according to claim 8 in which said succinimide is N-benzenesulfonyl tetrapropenylsuccinimide.
References Cited (Backward Citations)
US3309316A
Cited
US3470098A
Cited
US3725434A
Cited
US3574194A
Cited
US3775401A
Cited
FR1598564A
Cited
US3789056A
Cited
US3813387A
Cited
US4122266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-03-25 | 1983-09-24 | 1984-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-03-25 | 1987-09-24 | 1988-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-03-25 | 1991-09-24 | 1992-03-25 | $7700.00 | Window Closed / Lapsed |