US3923672A
Expired / Lapsed
US
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Turbine oil compositions
Assignee: ConocoPhillips Co
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Filing: 1974-10-07
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Granted: 1975-12-02
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Expires: 1994-10-07
Abstract
Abstract A lubricating oil composition, particularly suitable for use in steam turbines or gas turbines, is disclosed. The turbine oil composition comprises a major amount of a mineral or synthetic hydrocarbon base oil and an effective amount of a combination of the following materials: triphenyl phosphite or a trialkylsubstituted phenyl phosphite; diphenylamine or alkylated diphenylamine; phenyl Alpha -naphthylamine, phenyl Beta naphthylamine, alkyl or alkaryl substituted phenyl Alpha naphthylamine, or alkyl or alkaryl substituted phenyl Beta naphthylamine; benzotriazole or alkyl-substituted benzotriazole; partial ester of alkyl or alkenyl succinic anhydride. In a preferred aspect, the turbine oil composition contains additionally an effective amount of a copolymer of N-vinyl-2pyrrolidone and an Alpha -olefin.
Inventors
- 👤 Jr Albert M Durr
- 👤 Robert A Krenowicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:32
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2203/00; C10M2203/06; C10M2205/00; C10M2205/02; C10M2207/00; C10M2207/28; C10M2207/283; C10M2207/287; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/06; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/049; C10N; C10N2030/00; C10N2030/04; C10N2030/08; C10N2040/00; C10N2040/12; C10N2040/13; C10N2040/135
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
191 words
A TURBINE OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL OR SYNTHETIC HYDROCARBON BASE LUBRICATING OIL AND THE FOLLOWING COMBINATION OF MATERIALS IN THE AMOUNTS SPECIFIED AS WEIGHT PERCENT TOTAL COMPOSITION: A. ABOUT 0.05 TO ABOUT 1.5 -TRIPHENYL PHOSPHITE OR TRIALKYLSUBSTITUTED PHENYL PHOSPHITE HAVING 1 OR 2 ALKYL SUBSTITUENTS, EACH OF WHICH CONTAINS 1 TO 12 CARBON ATOMS; B. ABOUT 0.02 TO ABOUT 0.75 DIPHENYLAMINE OR ALKYLATED DIPHENYLAMINES CONTAINING 1 OR 2 ALKYL GROUPS, ON ONE OR BOTH PHENYL MOIETIES, CONTAINING, FROM ABOUT 4 TO ABOUT 16 CARBON ATOMS; C. ABOUT 0.10 TO ABOUT 0.75 PHENYL A-NAPHTHYLAMINE, PHENYL B-NAPHTHYLAMINE, PHENYL A-NAPHTHYLAMINE HAVING 1 OR 2 ALKYL OR ALKARYL SUBSTITUENTS, EACH OF WHICH CONTAINS 1 TO ABOUT 16 CARBON ATOMS, AND PHENYL B-NAPHTHYLAMINE HAVING 1 OR 22 ALKYL OR ALKARRYL SUBSTITUENTS, EACH OF WHICH CONTAINS 1 TO ABOUT 16 CARBON ATOMS; D. ABOUT 0.002 TO ABOUT 0.10 -BENZOTRIAZOLE OR ALKYL-SUBSITUATED BENZOTROAZOLES HAVING 1 OR 2 ALKYL GROUPS CONTAINING 1 OR 2 ALKYL GROUPS CONTAINING 1 TO 10 CARBON ATOMS; AND E. ABOUT 0.02 TO ABOUT 0.05 PARTIAL ESTER OF AN ALKYL OR ALKENYL SUCCINIC ANHYDRIDE, WHICH IS REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
191 words
A TURBINE OIL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MINERAL OR SYNTHETIC HYDROCARBON BASE LUBRICATING OIL AND THE FOLLOWING COMBINATION OF MATERIALS IN THE AMOUNTS SPECIFIED AS WEIGHT PERCENT TOTAL COMPOSITION: A. ABOUT 0.05 TO ABOUT 1.5 -TRIPHENYL PHOSPHITE OR TRIALKYLSUBSTITUTED PHENYL PHOSPHITE HAVING 1 OR 2 ALKYL SUBSTITUENTS, EACH OF WHICH CONTAINS 1 TO 12 CARBON ATOMS; B. ABOUT 0.02 TO ABOUT 0.75 DIPHENYLAMINE OR ALKYLATED DIPHENYLAMINES CONTAINING 1 OR 2 ALKYL GROUPS, ON ONE OR BOTH PHENYL MOIETIES, CONTAINING, FROM ABOUT 4 TO ABOUT 16 CARBON ATOMS; C. ABOUT 0.10 TO ABOUT 0.75 PHENYL A-NAPHTHYLAMINE, PHENYL B-NAPHTHYLAMINE, PHENYL A-NAPHTHYLAMINE HAVING 1 OR 2 ALKYL OR ALKARYL SUBSTITUENTS, EACH OF WHICH CONTAINS 1 TO ABOUT 16 CARBON ATOMS, AND PHENYL B-NAPHTHYLAMINE HAVING 1 OR 22 ALKYL OR ALKARRYL SUBSTITUENTS, EACH OF WHICH CONTAINS 1 TO ABOUT 16 CARBON ATOMS; D. ABOUT 0.002 TO ABOUT 0.10 -BENZOTRIAZOLE OR ALKYL-SUBSITUATED BENZOTROAZOLES HAVING 1 OR 2 ALKYL GROUPS CONTAINING 1 OR 2 ALKYL GROUPS CONTAINING 1 TO 10 CARBON ATOMS; AND E. ABOUT 0.02 TO ABOUT 0.05 PARTIAL ESTER OF AN ALKYL OR ALKENYL SUCCINIC ANHYDRIDE, WHICH IS REPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
16 words
The turbine oil composition of claim 1 wherein the base lubricating oil is a mineral oil.
Claim 4
Dependent Claim
38 words
THE TURBINE OIL COMPOSITION OF CLAIM 2 WHEREIN IT CONTAINS ABOUT 0.05 TO ABOUT 1.50 WEIGHT PERCENT OF A COPOLYMER OF 1 MOLE N-VINYL-2-PYRROLIDONE AND 0.5 TO 12 MOLES OF AN A-OLEFIN CONTAINING 8 TO 30 CARBON ATOMS.
Claim 5
Dependent Claim
27 words
The turbine oil composition of claim 3 wherein it contains a copolymer of about 1 mole of N-vinyl-2-pyrrolidone and about 1 mole of a C20 Alpha -olefin.
Claim 6
Dependent Claim
54 words
The turbine oil composition of claim 1 wherein the base lubricating oil is a synthetic hydrocarbon lubricant which is selected from the group consisting of di-n-long-chain alkaryls, linear mono-olefin oligomers, and a composition consisting essentially of di-n-long-chain alkaryls and trialkyl-substituted tetrahydronaphthalenes, wherein a. the term di-n-long-chain alkaryls refers to materials represented by the formula
Claim 7
Dependent Claim
40 words
The turbine oil composition of claim 5 wherein it contains about 0.05 to about 1.50 weight percent of a copolymer of 1 mole of N-vinyl-2-pyrrolidone and 0.5 to 12 moles of an Alpha -olefin containing 8 to 30 carbon atoms.
Claim 8
Dependent Claim
27 words
The turbine oil composition of claim 6 wherein it contains a copolymer of about 1 mole of N-vinyl-2-pyrrolidone and about 1 mole of a C20 Alpha -olefin.
Claim 9
Dependent Claim
135 words
A turbine oil composition comprising a major amount of a mineral or synthetic hydrocarbon base lubricating oil and the following combination of materials in the amounts specified as weight percent of total composition: a. about 0.10 to about 1.0 - triphenyl phosphite or tri (mixed mono- and dinonylphenyl) phosphite; b. about 0.05 to about 0.50 - diphenylamine or alkylated diphenylamine which is predominantly p,p''-dinonyldiphenylamine; c. about 0.15 to about 0.35 - phenyl Alpha -naphthylamine, phenyl Beta -naphthylamine or a substituted phenyl Beta -naphthylamine which is a mixture of a major amount of di-styrenated phenyl Beta -naphthylamine and a minor amount of mono-styrenated phenyl Beta -naphthylamine; d. about 0.005 to about 0.030 benzotriazole or tolyltriazole; e. about 0.05 to about 0.10 partial ester of an alkyl or alkenyl succinic anhydride, which is represented by the formula
Claim 10
Dependent Claim
135 words
A turbine oil composition comprising a major amount of a mineral or synthetic hydrocarbon base lubricating oil and the following combination of materials in the amounts specified as weight percent of total composition: a. about 0.10 to about 1.0 - triphenyl phosphite or tri (mixed mono- and dinonylphenyl) phosphite; b. about 0.05 to about 0.50 - diphenylamine or alkylated diphenylamine which is predominantly p,p''-dinonyldiphenylamine; c. about 0.15 to about 0.35 - phenyl Alpha -naphthylamine, phenyl Beta -naphthylamine or a substituted phenyl Beta -naphthylamine which is a mixture of a major amount of di-styrenated phenyl Beta -naphthylamine and a minor amount of mono-styrenated phenyl Beta -naphthylamine; d. about 0.005 to about 0.030 benzotriazole or tolyltriazole; e. about 0.05 to about 0.10 partial ester of an alkyl or alkenyl succinic anhydride, which is represented by the formula
Claim 11
Dependent Claim
16 words
The turbine oil composition of claim 8 wherein the base lubricating oil is a mineral oil.
Claim 12
Dependent Claim
39 words
The turbine oil composition of claim 9 wherein it contains about 0.10 to about 0.80 weight percent of a copolymer of 1 mole N-vinyl-2-pyrrolidone and 0.5 to 12 moles of an Alpha -olefin containing 8 to 30 carbon atoms.
Claim 13
Dependent Claim
27 words
The turbine oil composition of claim 10 wherein it contains a copolymer of about 1 mole of N-vinyl-2-pyrrolidone and about 1 mole of a C20 Alpha -olefin.
Claim 14
Dependent Claim
54 words
The turbine oil composition of claim 8 wherein the base lubricating oil is a synthetic hydrocarbon lubricant which is selected from the group consisting of di-n-long-chain alkaryls, linear mono-olefin oligomers, and a composition consisting essentially of di-n-long-chain alkaryls and trialkyl-substituted tetrahydronaphthalenes, wherein a. the term di-n-long-chain alkaryls refers to materials represented by the formula
Claim 15
Dependent Claim
19 words
The turbine oil composition of claim 12 wherein the partial ester of succinic anhydride is represented by the formula
Claim 16
Dependent Claim
39 words
The turbine oil composition of claim 13 wherein it contains about 0.10 to about 0.80 weight percent of a copolymer of 1 mole N-vinyl-2-pyrrolidone and 0.5 to 12 moles of an Alpha -olefin containing 8 to 30 carbon atoms.
Claim 17
Dependent Claim
26 words
The turbine oil composition of claim 14 wherein it contains a copolymer of about 1 mole of N-vinyl-2-pyrrolidone and about 1 mole of a C20 olefin.
Claim 18
Dependent Claim
47 words
The turbine oil composition of claim 15 wherein the base lubricating oil is a composition consisting essentially of di-n-long-chain alkaryls, which are present in an amount of 61 to 92 weight percent, and trialkyl-substituted tetrahydronaphthalenes which are present in an amount of 5 to 30 weight percent.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |