US3897352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfurized nitrated alkylphenol salts and lubricant compositions thereof
Assignee: Texaco Inc
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Filing: 1973-12-21
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Granted: 1975-07-29
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Expires: 1993-12-21
Abstract
Abstract A multipurpose additive for lubricating oils of antioxidant, antithickening, anticorrosion and detergent properties comprising a sulfurized Group II metal nitrated alkylphenolate prepared by (1) contacting an alkylphenol with a nitrating agent to form nitrated alkylphenol, (2) treating the nitrated alkylphenol with a Group II metal oxide, hydroxide or alkoxyalkoxide to form the Group II metal salt of nitrated alkylphenol, (3) treating the Group II metal salt with sulfur to form the sulfurized reaction product of the Group II metal salt of a nitrated alkylphenol.
Inventors
- 👤 Harry Chafetz
- 👤 Rodney L Sung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:07
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2221/00; C10M2225/00; C10M2225/04; C10M2225/041; C10N; C10N2020/00; C10N2020/01; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
48 words
A SULFURIZED GROUP 11 METAL NITRATED ALKYLPHENOLATE HAVING A METAL RATIO OF BETWEEN ABOUT 1 AND 3, A SULFUR CONTENT OF BETWEEN ABOUT 3,1 AND 10 WT. % AND A NITROGEN CONTENT OF BETWEEN ABOUT 0.3 AND 6 WT. % COMPRISING: A. CONTACTING AN ALKYLPHENOL OF THE FORMULA:
Claim 2
Dependent Claim
48 words
A SULFURIZED GROUP 11 METAL NITRATED ALKYLPHENOLATE HAVING A METAL RATIO OF BETWEEN ABOUT 1 AND 3, A SULFUR CONTENT OF BETWEEN ABOUT 3,1 AND 10 WT. % AND A NITROGEN CONTENT OF BETWEEN ABOUT 0.3 AND 6 WT. % COMPRISING: A. CONTACTING AN ALKYLPHENOL OF THE FORMULA:
Claim 3
Dependent Claim
21 words
A product in accordance with claim 1 wherein said metal ratio is about 1 and said Group II metal is calcium.
Claim 4
Dependent Claim
67 words
A product in accordance with claim 1 wherein said metal ratio is about 1, said Group II metal is calcium, said nitrating agent is nitric acid, said alkylphenol is C12 alkylphenol, said step b is conducteD in the presence of a hydrocarbon lubricating oil, said Group II metal reagent is calcium methoxyethoxide, and said steps b and c are conducted in the presence of an inert gas.
Claim 5
Dependent Claim
76 words
A lubricating oil composition containing between about 50 and 99.9 wt. % of a hydrocarbon lubricating oil and between about 0.1 and 50 wt. % of a sulfurized Group II metal nitrated alkylphenol having a metal ratio of between about 1 and 2, a sulfur content of between about 0.1 and 10 wt. % and a nitrogen content between about 0.3 and 6 wt. % prepared by the method: a. contacting an alkylphenol of the formula:
Claim 6
Dependent Claim
76 words
A lubricating oil composition containing between about 50 and 99.9 wt. % of a hydrocarbon lubricating oil and between about 0.1 and 50 wt. % of a sulfurized Group II metal nitrated alkylphenol having a metal ratio of between about 1 and 2, a sulfur content of between about 0.1 and 10 wt. % and a nitrogen content between about 0.3 and 6 wt. % prepared by the method: a. contacting an alkylphenol of the formula:
Claim 7
Dependent Claim
23 words
A lubricating oil composition in accordance with claim 4 wherein said Group II metal is calcium and said metal ratio is about 1.
Claim 8
Dependent Claim
43 words
A lubricating oil composition in accordance with claim 4 wherein said sulfurized Group II metal nitrated alkylphenolate is present in an amount of between about 0.1 and 10 wt. %, said Group II metal is calcium and said metal ratio is about 1.
Claim 9
Dependent Claim
100 words
A lubricating oil composition in accordance with claim 4 wherein said sulfurized Group II metal nitrated alkylphenolate is present in an amount of between about 0.1 and 10 wt. %, said metal ratio is about 1, said Group II metal is calcium, said calcium reagent is calcium methoxyethoxide, said alkylphenol is C12 alkylphenol, and said step b is conducted in the presence of between about 10 and 90 wt. % hydrocarbon lubricating oil of an SUS viscosity of between about 100 and 500 at 100*F., and said steps b and c are conducted in the presence of an inert gas.
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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) | 1978-07-28 | 1979-01-27 | 1979-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-28 | 1983-01-27 | 1983-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-28 | 1987-01-27 | 1987-07-29 | $7700.00 | Window Closed / Lapsed |