US4159956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Succinimide dispersant combination
Assignee: Chevron USA Inc
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Filing: 1978-06-30
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Granted: 1979-07-03
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Expires: 1998-06-30
Abstract
Abstract A lubricating oil of outstanding detergency contains an alkaline earth metal aliphatic sulfonate and an alkenyl monosuccinimide.
Inventors
- 👤 Louis De Vries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:03
CPC Classifications
C; C10; C10M; C10M141/00; C10M141/10; C10M141/08; C10M163/00; C10M2203/00; C10M2203/10; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/28; C10M2207/282; C10M2207/287; C10M2207/288; C10M2207/289; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/10; C10M2211/00; C10M2211/08; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/086; C10M2215/24; C10M2215/26; C10M2215/28; C10M2217/00; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/083; C10M2221/00; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/06; C10M2223/065; C10M2223/12; C10M2227/00; C10M2227/06; C10M2227/061; C10M2227/063; C10N; C10N2010/00; C10N2010/04; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/08; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
63 words
A lubricating oil composition comprising an oil of lubricating viscosity and (A) from 2.5 to 50 millimols per kilogram of an alkaline earth metal substantially saturated aliphatic sulfonate wherein the aliphatic group contains from about 20 to 300 carbon atoms, and (B) from 0.5 to 20 weight percent of an alkenyl mono-succinimide wherein the alkenyl group contains about 50 to 300 carbon atoms.
Claim 2
Dependent Claim
63 words
A lubricating oil composition comprising an oil of lubricating viscosity and (A) from 2.5 to 50 millimols per kilogram of an alkaline earth metal substantially saturated aliphatic sulfonate wherein the aliphatic group contains from about 20 to 300 carbon atoms, and (B) from 0.5 to 20 weight percent of an alkenyl mono-succinimide wherein the alkenyl group contains about 50 to 300 carbon atoms.
Claim 3
Dependent Claim
15 words
The composition of claim 1 wherein said aliphatic group is derived from a polyolefin group.
Claim 4
Dependent Claim
26 words
The composition of claim 2 wherein said alkenyl mono-succinimide is prepared from an ethylene polyamine and said aliphatic group is derived from polybutylene, polyisobutylene or polypropylene.
Claim 5
Dependent Claim
58 words
The composition of claim 3 comprising from 10 to 30 millimols per kilogram of said sulfonate wherein said alkaline earth metal is calcium or magnesium, said aliphatic group is derived from polyisobutylene of 20 to 100 carbon atoms, and from 2 to 10 weight percent of said succinimide wherein said ethylene polyamine is tetraethylene pentamine or triethylene tetraamine.
Claim 6
Dependent Claim
62 words
A lubricating oil concentrate comprising an oil of lubricating viscosity and (A) from 25 to 100 millimols per kilogram of an alkaline earth metal substantially saturated aliphatic sulfonate wherein said aliphatic group contains about 20 to 300 carbon atoms, and (B) from 5 to 80 weight percent of an alkenyl mono-succinimide wherein the alkenyl group contains about 50 to 300 carbon atoms.
Claim 7
Dependent Claim
62 words
A lubricating oil concentrate comprising an oil of lubricating viscosity and (A) from 25 to 100 millimols per kilogram of an alkaline earth metal substantially saturated aliphatic sulfonate wherein said aliphatic group contains about 20 to 300 carbon atoms, and (B) from 5 to 80 weight percent of an alkenyl mono-succinimide wherein the alkenyl group contains about 50 to 300 carbon atoms.
Claim 8
Dependent Claim
15 words
The concentrate of claim 5 wherein said aliphatic group is derived from a polyolefin group.
Claim 9
Dependent Claim
26 words
The concentrate of claim 6 wherein said alkenyl mono-succinimide is prepared from an ethylene polyamide and said aliphatic group is derived from polybutylene, polyisobutylene, or polypropylene.
Claim 10
Dependent Claim
36 words
The concentrate of claim 7 wherein said alkaline earth metal is calcium or magnesium, said aliphatic group is derived from polyisobutylene of 20 to 100 carbon atoms and said polyamine is tetraethylene pentamine or triethylene tetraamine.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-07-02 | 1983-01-01 | 1983-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-07-02 | 1987-01-01 | 1987-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-07-02 | 1991-01-01 | 1991-07-03 | $7700.00 | Window Closed / Lapsed |