Patent US4456538A successfully refreshed from Google Patents.
US4456538A
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Process for preparing molybdenum-containing compositions useful for improved fuel economy of internal combustion engines
Assignee: Lubrizol Corp
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Filing: 1981-11-20
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Granted: 1984-06-26
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Expires: 2001-11-20
Abstract
Abstract Molybdenum-containing compositions prepared by reacting: (a) a phosphorus-containing acid represented by the formula: ##STR1## wherein each X and X' is independently oxygen or sulfur, each n is zero or one and each R is independently the same or a different hydrocarbon-based radical; and (b) at least one hexavalent molybdenum oxide compound, and (c) hydrogen sulfide, in the presence of (d) a polar solvent are useful as additives for lubricants. Internal combustion engines, especially gasoline engines, when lubricated by said additive-containing lubricants exhibit improved fuel economy.
Inventors
- 👤 Ripple David E.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:33
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/18; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/16; C07F9/165; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/06; C10M2223/065; C10N; C10N2010/00; C10N2010/12; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 54
Claim 1
Independent Claim
152 words
A process for preparing a composition which comprises reacting: (a) A phosphorus-containing acid represented by the formula: ##STR11## wherein each X and X' is independently oxygen or sulfur, each n is zero or one, and each R is independently the same or a different hydrocarbon-based radical; (b) at least one hexavalent molybdenum oxide compound, and (c) hydrogen sulfide, in the presence of (d) a polar solvent at a temperature of from about 0° C. up to about 150° C. wherein the ratio of reactants of (a):(b):(c) is from about 0.5 up to about 4 moles of (a): one mole of molybdenum in (b): at least 0.5 mole of H 2 S and (d) is present in at least one minimum amount necessary for the reaction of (a), (b) and (c) to proceed; with the proviso that a reaction mixture of (a) and (b) is first prepared before reaction with hydrogen sulfide (c).
Claim 2
Dependent Claim
152 words
A process for preparing a composition which comprises reacting: (a) A phosphorus-containing acid represented by the formula: ##STR11## wherein each X and X' is independently oxygen or sulfur, each n is zero or one, and each R is independently the same or a different hydrocarbon-based radical; (b) at least one hexavalent molybdenum oxide compound, and (c) hydrogen sulfide, in the presence of (d) a polar solvent at a temperature of from about 0° C. up to about 150° C. wherein the ratio of reactants of (a):(b):(c) is from about 0.5 up to about 4 moles of (a): one mole of molybdenum in (b): at least 0.5 mole of H 2 S and (d) is present in at least one minimum amount necessary for the reaction of (a), (b) and (c) to proceed; with the proviso that a reaction mixture of (a) and (b) is first prepared before reaction with hydrogen sulfide (c).
Claim 3
Dependent Claim
22 words
A process according to claim 1 wherein the hydrocarbon-based radical is an aliphatic-based radical and contains up to about 30 carbon atoms.
Claim 4
Dependent Claim
21 words
A process according to claim 2 wherein the aliphatic-based radical is alkyl and contains from 3 to about 30 carbon atoms.
Claim 5
Dependent Claim
24 words
A process according to claim 3 wherin at least one X is sulfur; at least one X' is oxygen; and each n is 1.
Claim 6
Dependent Claim
16 words
A process according to claim 4 wherein (d) is water, organic polar solvents or mixtures thereof.
Claim 7
Dependent Claim
35 words
A process according to claim 1 wherein the hexavalent molybdenum oxide compound (b) is an acidic water-soluble hexavalent molybdenum compound that is obtained from molybdenum-trioxide compounds or mixtures of one or more of these compounds.
Claim 8
Dependent Claim
26 words
A process according to claim 6 wherein the molybdenum-trioxide compounds are molybdenum trioxide, molybdenum trioxide hydrate, molybdic acid, ammonium molybdates, alkali metal molybdates, or heteropolyacid molybdates.
Claim 9
Dependent Claim
35 words
A process according to claim 4 wherein the hexavalent molybdenum oxide compound (b) is an acidic water-soluble hexavalent molybdenum compound that is obtained from molybdenum-trioxide compounds or mixtures of one or more of these compounds.
Claim 10
Dependent Claim
26 words
A process according to claim 8 wherein the molybdenum-trioxide compounds are molybdenum trioxide, molybdenum trioxide hydrate, molybdic acid, ammonium molybdates, alkali metal molybdates, or heteropolyacid molybdates.
Claim 11
Dependent Claim
35 words
A process according to claim 5 wherein the hexavalent molybdenum oxide compound (b) is an acidic water-soluble hexavalent molybdenum compound that is obtained from molybdenum-trioxide compounds or mixtures of one or more of these compounds.
Claim 12
Dependent Claim
26 words
A process according to claim 10 wherein the molybdenum-trioxide compounds are molybdenum trioxide, molybdenum trioxide hydrate, molybdic acid, ammonium molybdates, alkali metal molybdates, or heteropolyacid molybdates.
Claim 13
Dependent Claim
13 words
A process according to claim 7 wherein the heteropolyacid molybdates are the phosphomolybdates.
Claim 14
Dependent Claim
13 words
A process according to claim 9 wherein the heteropolyacid molybdates are the phosphomolybdates.
Claim 15
Dependent Claim
13 words
A process according to claim 11 wherein the heteropolyacid molybdates are the phosphomolybdates.
Claim 16
Dependent Claim
10 words
A process according to claim 1 wherein (d) is water.
Claim 17
Dependent Claim
10 words
A process according to claim 4 wherein (d) is water.
Claim 18
Dependent Claim
10 words
A process according to claim 5 wherein (d) is water.
Claim 19
Dependent Claim
10 words
A process according to claim 7 wherein (d) is water.
Claim 20
Dependent Claim
10 words
A process according to claim 9 wherein (d) is water.
Claim 21
Dependent Claim
10 words
A process according to claim 11 wherein (d) is water.
Claim 22
Dependent Claim
10 words
A process according to claim 14 wherein (d) is water.
Claim 23
Dependent Claim
10 words
A composition prepared according to the process of claim 1.
Claim 24
Dependent Claim
10 words
A composition prepared according to the process of claim 4.
Claim 25
Dependent Claim
10 words
A composition prepared according to the process of claim 5.
Claim 26
Dependent Claim
10 words
A composition prepared according to the process of claim 9.
Claim 27
Dependent Claim
10 words
A composition prepared according to the process of claim 15.
Claim 28
Dependent Claim
10 words
A composition prepared according to the process of claim 16.
Claim 29
Dependent Claim
10 words
A composition prepared according to the process of claim 17.
Claim 30
Dependent Claim
10 words
A composition prepared according to the process of claim 21.
Claim 31
Dependent Claim
43 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity and an amount sufficient to provide improved oxidation stability, antiwear, extreme pressure or friction reducing properties up to about 30% by weight of at least one composition of claim 22.
Claim 32
Dependent Claim
43 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity and an amount sufficient to provide improved oxidation stability, antiwear, extreme pressure, or friction reducing properties up to about 30% by weight of at least one composition of claim 23.
Claim 33
Dependent Claim
43 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity and an amount sufficient to provide improved oxidation stability, antiwear, extreme pressure, or friction reducing properties up to about 30% by weight of at least one composition of claim 24.
Claim 34
Dependent Claim
43 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity and an amount sufficient to provide improved oxidation stability, antiwear, extreme pressure, or friction reducing properties up to about 30% by weight of at least one composition of claim 25.
Claim 35
Dependent Claim
43 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity and an amount sufficient to provide improved oxidation stability, antiwear, extreme pressure, or friction reducing properties up to about 30% by weight of at least one composition of claim 26.
Claim 36
Dependent Claim
42 words
A lubricant composition comprising a major amount of an oil lubricating viscosity and an amount sufficient to provide improved oxidation stability, antiwear, extreme pressure, or friction reducing properties up to about 30% by weight of at least one composition of claim 27.
Claim 37
Dependent Claim
43 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity and an amount sufficient to provide improved oxidation stability, antiwear, extreme pressure, or friction reducing properties up to about 30% by weight of at least one composition of claim 28.
Claim 38
Dependent Claim
43 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity and an amount sufficient to provide improved oxidation stability, antiwear, extreme pressure, or friction reducing properties up to about 30% by weight of at least one composition of claim 29.
Claim 39
Dependent Claim
22 words
An additive concentrate comprising about 20-90% of at least one composition of claim 22 and a substantially inert, normally liquid organic diluent.
Claim 40
Dependent Claim
22 words
An additive concentrate comprising about 20-90% of at least one composition of claim 23 and a substantially inert, normally liquid organic diluent.
Claim 41
Dependent Claim
22 words
An additive concentrate comprising about 20-90% of at least one composition of claim 24 and a substantially inert, normally liquid organic diluent.
Claim 42
Dependent Claim
22 words
An additive concentrate comprising about 20-90% of at least one composition of claim 25 and a substantially inert, normally liquid organic diluent.
Claim 43
Dependent Claim
22 words
An additive concentrate comprising about 20-90% of at least one composition of claim 26 and a substantially inert, normally liquid organic diluent.
Claim 44
Dependent Claim
22 words
An additive concentrate comprising about 20-90% of at least one composition of claim 27 and a substantially inert, normally liquid organic diluent.
Claim 45
Dependent Claim
22 words
An additive concentrate comprising about 20-90% of at least one composition of claim 28 and a substantially inert, normally liquid organic diluent.
Claim 46
Dependent Claim
22 words
An additive concentrate comprising about 20-90% of at least one composition of claim 29 and a substantially inert, normally liquid organic diluent.
Claim 47
Dependent Claim
26 words
A method for reducing the fuel consumption of an internal combustion engine which comprises lubricating said engine during operation with the lubricant composition of claim 30.
Claim 48
Dependent Claim
26 words
A method for reducing the fuel consumption of an internal combustion engine which comprises lubricating said engine during operation with the lubricant composition of claim 31.
Claim 49
Dependent Claim
26 words
A method for reducing the fuel consumption of an internal combustion engine which comprises lubricating said engine during operation with the lubricant composition of claim 32.
Claim 50
Dependent Claim
26 words
A method for reducing the fuel consumption of an internal combustion engine which comprises lubricating said engine during operation with the lubricant composition of claim 33.
Claim 51
Dependent Claim
26 words
A method for reducing the fuel consumption of an internal combustion engine which comprises lubricating said engine during operation with the lubricant composition of claim 34.
Claim 52
Dependent Claim
26 words
A method for reducing the fuel consumption of an internal combustion engine which comprises lubricating said engine during operation with the lubricant composition of claim 35.
Claim 53
Dependent Claim
26 words
A method for reducing the fuel consumption of an internal combustion engine which comprises lubricating said engine during operation with the lubricant composition of claim 36.
Claim 54
Dependent Claim
26 words
A method for reducing the fuel consumption of an internal combustion engine which comprises lubricating said engine during operation with the lubricant composition of claim 37.
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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) | 1987-06-26 | 1987-12-26 | 1988-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-26 | 1991-12-26 | 1992-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-26 | 1995-12-26 | 1996-06-26 | $7700.00 | Window Closed / Lapsed |