US4086172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricating oil additive composition
Assignee: Chevron USA Inc
•
Filing: 1976-04-01
•
Granted: 1978-04-25
•
Expires: 1996-04-01
Abstract
Abstract A lubricating oil additive composition which imparts improved oxidation properties to crankcase lubricants comprises an antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and a hydroxy amine of the formula: ##STR1## wherein A and A' are C 2 -C 10 alkylene, R is C 1 -C 30 alkyl, Y is H, C 1 -C 6 alkyl of --A--OH, y is 0, 1 or 2, and x is 1 or 2. Lubricating oil compositions containing this additive composition are also disclosed.
Inventors
- 👤 Warren Lowe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:04
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10M2201/00; C10M2201/08; C10M2201/082; C10M2201/083; C10M2203/00; C10M2203/02; C10M2203/022; C10M2203/024; C10M2203/04; C10M2203/06; C10M2205/00; C10M2205/02; C10M2205/024; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/04; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/129; C10M2207/14; C10M2207/142; C10M2207/22; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/062; C10M2215/064; C10M2215/086; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/06; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/085; C10M2221/00; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/043; C10M2229/044; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
58 words
An additive composition for use in crankcase lubricating oils comprising: (1) an oil-soluble antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters, and sulfurized esterolefins, and (2) an oil-soluble hydroxy amine of the formula: ##STR9## wherein A is a C 2 -C 10 alkylene, and R is C 1 -C 30 alkyl.
Claim 2
Dependent Claim
58 words
An additive composition for use in crankcase lubricating oils comprising: (1) an oil-soluble antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters, and sulfurized esterolefins, and (2) an oil-soluble hydroxy amine of the formula: ##STR9## wherein A is a C 2 -C 10 alkylene, and R is C 1 -C 30 alkyl.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein the weight ratio of said antioxidant to said hydroxy amine is 1:0.001-21.
Claim 4
Dependent Claim
24 words
A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and an antioxidant amount of the composition of claim 1.
Claim 5
Dependent Claim
24 words
A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and an antioxidant amount of the composition of claim 2.
Claim 6
Dependent Claim
31 words
The composition of claim 4 comprising an oil of lubricating viscosity, from 0.25 to 10 weight percent of said antioxidant, and from 0.001 to 5 weight percent of said hydroxy amine.
Claim 7
Dependent Claim
25 words
The composition of claim 5 which contains an antioxidant-antiwear amount of an oil-soluble zinc salt, and wherein said antioxidant is a wax sulfide or polysulfide.
Claim 8
Dependent Claim
47 words
The composition of claim 6 which contains from 2 to 40 mmols of zinc per kilogram of composition, present as said oil-soluble zinc salt, from 0.25 to 2 weight percent of a paraffin wax thiomer antioxidant and from 0.01 to 0.3 weight percent of said hydroxy amine.
Claim 9
Dependent Claim
17 words
The composition of claim 5 wherein A is ethylene and R is C 12 -C 20 alkyl.
Claim 10
Dependent Claim
11 words
The composition of clam 8 wherein R is C 18 alkyl.
Claim 11
Dependent Claim
11 words
The composition of clam 8 wherein R is C 18 alkyl.
Claim 12
Dependent Claim
28 words
A lubricating oil additive concentrate which comprises from 90-10 percent weight of an oil of lubricating viscosity and from 10-90 percent weight of the composition of claim 1.
Claim 13
Independent Claim
78 words
A method for inhibiting the oxidation of a lubricating oil which comprises adding to said lubricating oil from 0.25 to 10 percent weight of (1) an oil-soluble antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and from 0.001 to 5% weight of (2) an oil-soluble hydroxy amine of the formula ##STR10## wherein A is a C 2 -C 10 alkylene, and R is C 1 -C 30 alkyl.
Claim 14
Independent Claim
78 words
A method for inhibiting the oxidation of a lubricating oil which comprises adding to said lubricating oil from 0.25 to 10 percent weight of (1) an oil-soluble antioxidant selected from aromatic or alkyl sulfides and polysulfides, sulfurized olefins, sulfurized carboxylic acid esters and sulfurized ester-olefins, and from 0.001 to 5% weight of (2) an oil-soluble hydroxy amine of the formula ##STR10## wherein A is a C 2 -C 10 alkylene, and R is C 1 -C 30 alkyl.
References Cited (Backward Citations)
US1888023A
Cited
US2305034A
Cited
US2370552A
Cited
US2512297A
Cited
US2729691A
Cited
US2718501A
Cited
US2832741A
Cited
US2924572A
Cited
US3004916A
Cited
US3211653A
Cited
US3062743A
Cited
US3345292A
Cited
US3296136A
Cited
US3445386A
Cited
US3527804A
Cited
US3398095A
Cited
US3652410A
Cited
US3657129A
Cited
US3634256A
Cited
US3711406A
Cited
US3948800A
Cited
US3775321A
Cited
US3909420A
Cited
US3839210A
Cited
US3899432A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |