Patent US2428310A successfully refreshed from Google Patents.
US4456539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazole-dithiophosphate reaction product and lubricant compositions containing same
Assignee: Mobil Oil AS
•
Filing: 1982-07-29
•
Granted: 1984-06-26
•
Expires: 2002-07-29
Abstract
Abstract Oxidation in lubricants is reduced by adding to the lubricant a small portion of a triazole/dithiophosphate reaction product.
Inventors
- 👤 Joosup Shim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:22
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6515; C07F9/6518; C07F9/65188; C07F9/6521; C07F9/65218; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M137/10; C10M137/105; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/12; C10N2010/14; C10N2010/16
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
54 words
A product of reaction made by reacting, at a temperature of from about 70° C. to about 150° C., an alkylbenzotriazole with an organodithiophosphate salt, the reactants being used in quantities such that there are present in the reaction mixture equimolar amounts thereof or amounts in which one is in excess of the other.
Claim 2
Dependent Claim
54 words
A product of reaction made by reacting, at a temperature of from about 70° C. to about 150° C., an alkylbenzotriazole with an organodithiophosphate salt, the reactants being used in quantities such that there are present in the reaction mixture equimolar amounts thereof or amounts in which one is in excess of the other.
Claim 3
Dependent Claim
24 words
The product of claim 1 wherein the alkylbenzotriazole has the formula: ##STR4## wherein R is an alkyl group having 1 to 12 carbon atoms.
Claim 4
Dependent Claim
9 words
The product of claim 2 wherein R is methyl.
Claim 5
Dependent Claim
39 words
The product of claim 1 wherein the organodithiophosphate salt has the formula: ##STR5## wherein R' is a hydrocarbyl group containing 1 to 25 carbon atoms, M is an ammonium or metal cation and x is the valence of M.
Claim 6
Dependent Claim
13 words
The product of claim 4 wherein the hydrocarbyl group is an alkyl group.
Claim 7
Dependent Claim
11 words
The product of claim 4 wherein M is a metal cation.
Claim 8
Dependent Claim
21 words
The product of claim 6 wherein M is selected from Groups IA, IIA, IIB, VIB and VIII of the Periodic Table.
Claim 9
Dependent Claim
10 words
The product of claim 7 wherein the metal is zinc.
Claim 10
Dependent Claim
21 words
The product of claim 5 wherein the alkyl group is methyl, ethyl, propyl, butyl, dimethyl butyl, pentyl, hexyl, ethylhexyl or eicosyl.
Claim 11
Dependent Claim
17 words
The product of claim 1 wherein the triazole is tolutriazole and the dithiophosphate is zinc di(dodecylphenyl) dithiophosphate.
Claim 12
Dependent Claim
17 words
The product of claim 1 wherein the triazole is tolutriazole and the dithiophosphate is zinc di(1,3-dimethylbutylphenyl) dithiophosphate.
Claim 13
Dependent Claim
74 words
A lubricant composition comprising a major proportion of a lubricating oil or grease thereof and a minor antioxidant amount of a product of reaction made by reacting, at a temperatuare of from about 70° C. to about 150° C., an alkylbenzotriazole with an organodithiophosphate salt, the reactants being used in quantities such that there are present in the reaction mixture equimolar amounts thereof or amounts in which one is in excess of the other.
Claim 14
Dependent Claim
74 words
A lubricant composition comprising a major proportion of a lubricating oil or grease thereof and a minor antioxidant amount of a product of reaction made by reacting, at a temperatuare of from about 70° C. to about 150° C., an alkylbenzotriazole with an organodithiophosphate salt, the reactants being used in quantities such that there are present in the reaction mixture equimolar amounts thereof or amounts in which one is in excess of the other.
Claim 15
Dependent Claim
24 words
The composition of claim 12 wherein the alkylbenzatriazole has the formula: ##STR6## wherein R is an alkyl group having 1 to 12 carbon atoms.
Claim 16
Dependent Claim
9 words
The composition of claim 13 wherein R is methyl.
Claim 17
Dependent Claim
39 words
The composition of claim 12 wherein the organodithiophosphate salt has the formula: ##STR7## wherein R' is a hydrocarbyl group containing 1 to 25 carbon atoms, M is an ammonium or metal cation and x is the valence of M.
Claim 18
Dependent Claim
13 words
The composition of claim 15 wherein the hydrocarbyl group is an alkyl group.
Claim 19
Dependent Claim
11 words
The composition of claim 15 wherein M is a metal cation.
Claim 20
Dependent Claim
21 words
The composition of claim 17 wherein M is selected from Groups IA, IIA, IIB, VIB and VIII of the Periodic Table.
Claim 21
Dependent Claim
10 words
The composition of claim 18 wherein the metal is zinc.
Claim 22
Dependent Claim
21 words
The composition of claim 16 wherein the alkyl group is methyl, ethyl, propyl, butyl, dimethyl butyl, pentyl, hexyl, ethylhexyl or eicosyl.
Claim 23
Dependent Claim
17 words
The composition of claim 12 wherein the triazole is tolutriazole and the dithiophosphate is zinc di(dodecylphenyl) dithiophosphate.
Claim 24
Dependent Claim
17 words
The composition of claim 12 wherein the triazole is tolutriazole and the dithiophosphate is zinc di(1,3-dimethylbutylphenyl) dithiophosphate.
Claim 25
Dependent Claim
24 words
The composition of claims 12, 13, 14, 15, 16, 17, 18, 19, 20, 21 or 22 wherein the lubricant is a mineral lubricating oil.
Claim 26
Dependent Claim
17 words
The composition of claim 23 wherein the mineral oil is in the form of an emulsion thereof.
Claim 27
Dependent Claim
11 words
The composition of claim 12 wherein the lubricant is a grease.
Claim 28
Dependent Claim
20 words
The composition of claim 12 wherein the lubricating oil is a synthetic lubricating oil or mixture of synthetic lubricating oils.
Claim 29
Dependent Claim
27 words
The composition of claim 12 wherein the lubricating oil is a mixture of (1) mineral lubricating oil and (2) synthetic lubricating oil or mixture of synthetic oils.
References Cited (Backward Citations)
US2706194A
Cited
GB737287A
Cited
US3192162A
Cited
US3813336A
Cited
US3846317A
Cited
US4298481A
Cited
US4306984A
Cited
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 |