Patent US3255807A successfully refreshed from Google Patents.
Patent US4459215A successfully refreshed from Google Patents.
US4459215A
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US
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Synergistic combination of alkali metal borates, sulfur compound, and zirconium salt
Assignee: Chevron USA Inc
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Filing: 1983-04-29
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Granted: 1984-07-10
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Expires: 2003-04-29
Abstract
Abstract Disclosed is a lubricating composition comprising an oil of lubricating viscosity having dispersed therein a minor amount of an additive composition comprising a mixture of: (a) a hydrated alkali metal borate; (b) an oil-soluble sulfur-containing compound; and (c) a zirconium salt.
Inventors
- 👤 Christopher G. Salentine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:41
CPC Classifications
C; C10; C10M; C10M141/00; C10M141/10; C10M125/00; C10M125/26; C10M129/00; C10M129/02; C10M129/26; C10M129/28; C10M129/38; C10M129/40; C10M135/00; C10M135/02; C10M135/20; C10M137/00; C10M137/02; C10M137/04; C10M137/08; C10M137/10; C10M141/08; C10M2201/00; C10M2201/087; C10M2201/10; C10M2201/102; C10M2201/105; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/126; C10M2207/129; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/086; C10M2221/00; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/043; C10M2223/045; C10M2223/047; C10N; C10N2010/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
48 words
A lubricating composition comprising an oil of lubricating viscosity having dispersed therein a minor amount of an additive composition comprising a mixture of: (a) a hydrated alkali metal borate; (b) an oil-soluble sulfur-containing compound; and (c) a zirconium salt of a carboxylic acid or mixture of carboxylic acids.
Claim 2
Dependent Claim
48 words
A lubricating composition comprising an oil of lubricating viscosity having dispersed therein a minor amount of an additive composition comprising a mixture of: (a) a hydrated alkali metal borate; (b) an oil-soluble sulfur-containing compound; and (c) a zirconium salt of a carboxylic acid or mixture of carboxylic acids.
Claim 3
Dependent Claim
36 words
The composition of claim 1 wherein said lubricating composition comprises: (a) 0.1 to 60 weight percent alkali metal borate; (b) 0.06 to 6.0 weight percent sulfur-containing compound; and (c) 0.01 to 10.0 weight percent zirconium salt.
Claim 4
Dependent Claim
14 words
The lubricant composition of claim 2 wherein said sulfur-containing compound is a sulfurized polybutene.
Claim 5
Dependent Claim
17 words
The lubricant composition of claim 2 containing from 0.03 to 3.0 weight percent of a phosphorus compound.
Claim 6
Dependent Claim
20 words
The lubricant composition of claim 4 wherein said phosphorus compound is a mixture of oleylammonium dibutylphosphate and oleylammonium dibutyl monothiophosphate.
Claim 7
Dependent Claim
21 words
The lubricant composition of claim 4 wherein said phosphorus compound is a mixture of dodecylammonium dihexylphosphate, dodecylammonium dihexylmonothiophosphate, and dodecylammonium dihexyldithiophosphate.
Claim 8
Dependent Claim
16 words
The lubricant composition of claim 5 wherein said zirconium salt is the zirconium salt of 2-ethylhexoate.
Claim 9
Dependent Claim
13 words
The lubricant composition of claim 7 wherein said borate is a potassium triborate.
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) | 1987-07-10 | 1988-01-09 | 1988-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-10 | 1992-01-09 | 1992-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-10 | 1996-01-09 | 1996-07-10 | $7700.00 | Window Closed / Lapsed |