US4132659A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfur and chlorine-containing lubricating oil additive
Assignee: Chevron USA Inc
•
Filing: 1977-12-30
•
Granted: 1979-01-02
•
Expires: 1997-12-30
Abstract
Abstract Lubricating oil additives are prepared by reacting 1-alkenes with sulfur and sulfur monochloride in the molar ratio 1:0.6-0.9:0.05-0.2. The additives have anti-wear, extreme pressure, and antioxidant properties.
Inventors
- 👤 Bruce W. Hotten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:21
CPC Classifications
C; C10; C10M; C10M135/00; C10M135/02; C10M135/04; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/04; C10M2209/00; C10M2209/10; C10M2209/103; C10M2215/00; C10M2215/086; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/02; C10M2219/022; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
45 words
A process for preparing a lubricating oil additive which comprises heating at 140°-200° C. for 1-20 hours a mixture of a 1-alkene with sulfur and sulfur monochloride in a molar ratio of about 1:0.6-0.9:0.05-0.2 respectively to yield an additive containing 5-20% sulfur and 0.5-5% chlorine.
Claim 2
Dependent Claim
45 words
A process for preparing a lubricating oil additive which comprises heating at 140°-200° C. for 1-20 hours a mixture of a 1-alkene with sulfur and sulfur monochloride in a molar ratio of about 1:0.6-0.9:0.05-0.2 respectively to yield an additive containing 5-20% sulfur and 0.5-5% chlorine.
Claim 3
Dependent Claim
16 words
The process as claim 1 wherein the mixture is heated at 150°-170° C. for 5-15 hours.
Claim 4
Dependent Claim
9 words
The product prepared by the process of claim 1.
Claim 5
Dependent Claim
18 words
The product of claim 3 wherein the 1-alkene contains from 10-20 carbon atoms, 8-16% sulfur and 1-2% chlorine.
Claim 6
Dependent Claim
18 words
The product of claim 4 wherein the 1-alkene is a cracked wax olefin-derived mixture of 9-10 carbon atoms.
Claim 7
Dependent Claim
18 words
The product of claim 4 wherein the 1-alkene is a cracked wax olefin-derived mixture of 15-18 carbon atoms.
Claim 8
Dependent Claim
21 words
A lubricating oil concentrate comprising from 10-95% wt oil of lubricating viscosity and 90-5% wt of the product of claim 3.
Claim 9
Dependent Claim
21 words
A lubricating oil concentrate comprising from 10-95% wt oil of lubricating viscosity and 90-5% wt of the product of claim 6.
Claim 10
Dependent Claim
20 words
A lubricating oil composition comprising an oil of lubricating viscosity and from 0.1-5% wt of the product of claim 3.
Claim 11
Dependent Claim
20 words
A lubricating oil composition comprising an oil of lubricating viscosity and from 0.2-2% wt of the product of claim 6.
References Cited (Backward Citations)
US2386222A
Cited
US2500167A
Cited
US2681905A
Cited
US2786031A
Cited
US2878243A
Cited
US3316237A
Cited
US3346549A
Cited
US3471404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-01-01 | 1982-07-03 | 1983-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-01 | 1986-07-03 | 1987-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-01 | 1990-07-03 | 1991-01-02 | $7700.00 | Window Closed / Lapsed |