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US4312767A
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Lubricant composition containing friction-modifying agent and antiwear agent
Assignee: Chevron USA Inc
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Filing: 1979-02-02
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Granted: 1982-01-26
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Expires: 1999-02-02
Abstract
Abstract Disclosed is an improved lubricating oil composition containing a friction-modifying agent and an alkali metal borate antiwear agent.
Inventors
- 👤 John H. Adams
- 👤 Donald D. Dexter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:37
CPC Classifications
C; C10; C10M; C10M141/00; C10M2201/00; C10M2201/087; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2207/289; C10M2207/40; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/223; C10M2215/224; C10M2215/24; C10M2215/26; C10M2215/28; C10M2219/00; C10M2219/02; C10M2219/024; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/06; C10M2223/065; C10N; C10N2040/00; C10N2040/02; C10N2040/08; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
58 words
A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and 0.05 to 10 weight percent of a friction-modifying agent selected from dioleylhydrogen phosphite, pentaerythritol mono-oleate, synthetic sulfurized sperm oil, fatty amides containing 12 to 18 carbon atoms, and glycerol mono-oleate, and 0.1 to 20 weight percent of an alkali metal borate antiwear agent.
Claim 2
Dependent Claim
58 words
A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and 0.05 to 10 weight percent of a friction-modifying agent selected from dioleylhydrogen phosphite, pentaerythritol mono-oleate, synthetic sulfurized sperm oil, fatty amides containing 12 to 18 carbon atoms, and glycerol mono-oleate, and 0.1 to 20 weight percent of an alkali metal borate antiwear agent.
Claim 3
Dependent Claim
13 words
The composition of claim 1 wherein said antiwear agent is hydrated potassium borate.
Claim 4
Dependent Claim
31 words
The composition of claim 2 wherein said composition contains 0.05 to 10 weight percent of said friction-modifying agent and 0.2 to 5 weight percent of said alkali metal borate antiwear agent.
Claim 5
Dependent Claim
49 words
A lubricating oil additive concentrate comprising 0.25 to 90 weight percent of a friction-modifying agent selected from dioleylhydrogen phosphite, pentaerythritol mono-oleate, synthetic sulfurized sperm oil, fatty amides containing 12 to 18 carbon atoms, and glycerol mono-oleate, and 1.0 to 99 weight percent of an alkali metal borate antiwear agent.
Claim 6
Dependent Claim
49 words
A lubricating oil additive concentrate comprising 0.25 to 90 weight percent of a friction-modifying agent selected from dioleylhydrogen phosphite, pentaerythritol mono-oleate, synthetic sulfurized sperm oil, fatty amides containing 12 to 18 carbon atoms, and glycerol mono-oleate, and 1.0 to 99 weight percent of an alkali metal borate antiwear agent.
Claim 7
Dependent Claim
36 words
A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and 0.05 to 10 weight percent of dioleylhydrogen phosphite and 0.1 to 20 weight percent of an alkali metal borate antiwear agent.
Claim 8
Dependent Claim
36 words
A lubricating oil composition comprising a major amount of an oil of lubricating viscosity and 0.05 to 10 weight percent of dioleylhydrogen phosphite and 0.1 to 20 weight percent of an alkali metal borate antiwear agent.
Claim 9
Dependent Claim
27 words
A lubricating oil additive concentrate comprising 0.25 to 90 weight percent of dioleylhydrogen phosphite and 1.0 to 99 weight percent of an alkali metal borate antiwear agent.
Claim 10
Dependent Claim
27 words
A lubricating oil additive concentrate comprising 0.25 to 90 weight percent of dioleylhydrogen phosphite and 1.0 to 99 weight percent of an alkali metal borate antiwear agent.
References Cited (Backward Citations)
US3652410A
Cited
US3997454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-01-25 | 1985-07-27 | 1986-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-01-25 | 1989-07-27 | 1990-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-01-25 | 1993-07-27 | 1994-01-26 | $7700.00 | Window Closed / Lapsed |