US4263152A
Expired / Lapsed
US
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Process of preparing molybdenum complexes, the complexes so-produced and lubricants containing same
Assignee: Chevron USA Inc
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Filing: 1979-06-28
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Granted: 1981-04-21
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Expires: 1999-06-28
Abstract
Abstract Antioxidant additives for lubricating oil are prepared by combining water, an acidic molybdenum compound, a basic nitrogen compound complex and a sulfur source to form a sulfur- and molybdenum-containing composition.
Inventors
- 👤 John M. King
- 👤 Louis DeVries
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:25
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/18; C07; C07F; C07F11/00; C07F11/005; C10M2217/00; C10M2217/02; C10M2217/04; C10M2219/00; C10M2219/02; C10M2219/04; C10M2219/046; C10M2227/00; C10M2227/06; C10N; C10N2010/00; C10N2010/12; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
122 words
A process for preparing a molybdenum-containing composition which comprises (1) reacting an acidic molybdenum compound and a basic nitrogen compound selected from the group consisting of a succinimide, carboxylic acid amide, Mannich base, phosphonamide, thiophosphonamide, phosphoramide, dispersant viscosity index improvers, or mixtures thereof, in the presence of a polar promoter, to form a molybdenum complex wherein from 0.01 to 2 atoms of molybdenum are present per basic nitrogen atom, and the promoter is present in the ratio of 0.01 to 50 moles of said polar promoter per mole of molybdenum; and (2) reacting said complex with a sulfur containing compound, in an amount to provide 0.1 to 4.0 atoms of sulfur per atom of molybdenum, to form a sulfur- and molybdenum-containing composition.
Claim 2
Dependent Claim
122 words
A process for preparing a molybdenum-containing composition which comprises (1) reacting an acidic molybdenum compound and a basic nitrogen compound selected from the group consisting of a succinimide, carboxylic acid amide, Mannich base, phosphonamide, thiophosphonamide, phosphoramide, dispersant viscosity index improvers, or mixtures thereof, in the presence of a polar promoter, to form a molybdenum complex wherein from 0.01 to 2 atoms of molybdenum are present per basic nitrogen atom, and the promoter is present in the ratio of 0.01 to 50 moles of said polar promoter per mole of molybdenum; and (2) reacting said complex with a sulfur containing compound, in an amount to provide 0.1 to 4.0 atoms of sulfur per atom of molybdenum, to form a sulfur- and molybdenum-containing composition.
Claim 3
Dependent Claim
49 words
The process of claim 1 wherein the sulfur source is sulfur, hydrogen sulfide, phosphorus pentasulfide, R 2 S x where R is hydrocarbyl, and x is at least 2, inorganic sulfides or inorganic polysulfides, thioacetamide, thiourea, mercaptans of the formula RSH where R is hydrocarbyl, or a sulfur-containing antioxidant.
Claim 4
Dependent Claim
60 words
The process of claim 2 wherein the sulfur source is sulfur, hydrogen sulfide, phosphorus pentasulfide, R 2 S x where R is C 1-4 hydrocarbyl, and x is at least 3, inorganic sulfides, or inorganic polysulfides, thioacetamide, thiourea or RSH where R is C 1-40 alkyl, and the acidic molybdenum compound is molybdic acid, ammonium molybdate, or alkali metal molybdates.
Claim 5
Dependent Claim
60 words
The process of claim 3 wherein said sulfur source is sulfur, hydrogen sulfide, RSH where R is C 1-10 alkyl, phosphorus pentasulfide, or (NH 4 ) 2 S x' , where x' is at least 1, said acidic molybdenum compound is molybdic acid, or ammonium molybdate, and said basic nitrogen compound is a succinimide, carboxylic acid amide, or Mannich base.
Claim 6
Dependent Claim
33 words
The process of claim 4 wherein said basic nitrogen compound is a C 24-350 hydrocarbyl succinimide, carboxylic acid amide, or a Mannich base prepared from a C 9-200 alkylphenol, formaldehyde, and an amine.
Claim 7
Dependent Claim
25 words
The process of claim 5 wherein said basic nitrogen compound is a polyisobutenyl succinimide prepared from polyisobutenyl succinic anhydride and tetraethylene pentaamine or triethylene tetraamine.
Claim 8
Dependent Claim
58 words
The process of claim 5 wherein said basic nitrogen compound is a carboxylic acid amide prepared from one or more carboxylic acids of the formula R 2 COOH, or a derivative thereof which upon reaction with an amine yields a carboxylic acid amide, wherein R 2 is C 12-350 alkyl or C 12-350 alkenyl and a hydrocarbyl polyamine.
Claim 9
Dependent Claim
26 words
The process of claim 7 wherein R 2 is C 12-20 alkyl or C 12-20 alkenyl and the hydrocarbyl polyamine is tetraethylene pentaamine or triethylene tetraamine.
Claim 10
Dependent Claim
20 words
The process of claim 5 wherein said basic nitrogen compound is a Mannich base prepared from dodecylphenol, formaldehyde, and methylamine.
Claim 11
Dependent Claim
28 words
The process of claim 5 wherein said basic nitrogen compound is a Mannich base prepared from C 80-100 alkylphenol, formaldehyde and triethylene tetraamine, tetraethylene pentaamine, or mixtures thereof.
Claim 12
Dependent Claim
21 words
The process of claim 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 wherein said polar promoter is water.
Claim 13
Dependent Claim
19 words
The product prepared by the process of claim 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10.
Claim 14
Dependent Claim
9 words
The product prepared by the process of claim 11.
Claim 15
Dependent Claim
23 words
A lubricating oil composition comprising an oil of lubricating viscosity and from 0.05 to 15% by weight of the product of claim 12.
Claim 16
Dependent Claim
23 words
A lubricating oil composition comprising an oil of lubricating viscosity and from 0.05 to 15% by weight of the product of claim 13.
Claim 17
Dependent Claim
24 words
A lubricating oil concentrate composition comprising an oil of lubricating viscosity and from 15 to 90% by weight of the product of claim 12.
Claim 18
Dependent Claim
24 words
A lubricating oil concentrate composition comprising an oil of lubricating viscosity and from 15 to 90% by weight of the product of claim 13.
References Cited (Backward Citations)
DE1076298B
Cited
DE1095973B
Cited
US3290245A
Cited
US3140997A
Cited
US3223625A
Cited
US3281355A
Cited
US3509051A
Cited
GB1085903A
Cited
US3591496A
Cited
US4098705A
Cited
US4164473A
Cited
US4192757A
Cited
GB2037317A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-04-20 | 1984-10-20 | 1985-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-04-20 | 1988-10-20 | 1989-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-04-20 | 1992-10-20 | 1993-04-21 | $7700.00 | Window Closed / Lapsed |