US4478732A
Expired / Lapsed
US
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Friction reducing additives and compositions thereof
Assignee: Mobil Oil AS
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Filing: 1981-05-20
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Granted: 1984-10-23
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Expires: 2001-05-20
Abstract
Abstract Certain borated additive compounds, such as borated mixed ethoxylated amines and ethoxylated amides or hydroxyalkyl imidazolines and hydroxyesters or hydrolyzed hydroxyalkyl imidazolines and ethoxylated amides and combinations thereof, provide highly effective multifunctional characteristics for various lubricating media into which they are incorporated.
Inventors
- 👤 Andrew G. Horodysky
- 👤 Joan M. Kaminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:55
CPC Classifications
C; C10; C10M; C10M139/00; C10M2227/00; C10M2227/06; C10M2227/061
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
104 words
A improved lubricant composition comprising a major proportion of an oil of lubricating viscosity or grease or other solid lubricant prepared therefrom and a minor effective amount of a multifunctional additive having improved friction reducing, oxidative and thermal stability, anti-rust and anti-corrosion properties and wherein said additive is selected from the group consisting essentially of borated mixed hydroxylalkyl or hydroxyalkenyl hydrocarbyl imidazolines-hydroxyesters and various combinations of these in which each additive compound has from about 1 to about 30 carbon atoms and is alkyl or substituted alkyl having one or more double bonds and one or more halogen or sulfur atoms and aromatic rings.
Claim 2
Dependent Claim
104 words
A improved lubricant composition comprising a major proportion of an oil of lubricating viscosity or grease or other solid lubricant prepared therefrom and a minor effective amount of a multifunctional additive having improved friction reducing, oxidative and thermal stability, anti-rust and anti-corrosion properties and wherein said additive is selected from the group consisting essentially of borated mixed hydroxylalkyl or hydroxyalkenyl hydrocarbyl imidazolines-hydroxyesters and various combinations of these in which each additive compound has from about 1 to about 30 carbon atoms and is alkyl or substituted alkyl having one or more double bonds and one or more halogen or sulfur atoms and aromatic rings.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein the additive is borated mixed hydroxyalkyl or hydroxyalkenyl hydrocarbyl imidazolines and hydroxyesters.
Claim 4
Dependent Claim
18 words
The composition of claim 1 wherein said oil is selected from mineral ois, synthetic oils and mixtures thereof.
Claim 5
Dependent Claim
12 words
The composition of claim 1 wherein said oil is a synthetic oil.
Claim 6
Dependent Claim
16 words
The composition of claim 1 wherein said oil is a mixture of mineral and synthetic oils.
Claim 7
Dependent Claim
12 words
The composition of claim 1 wherein said oil is a mineral oil.
Claim 8
Dependent Claim
12 words
The composition of claim 1 wherein said major proportion comprises a grease.
Claim 9
Dependent Claim
8 words
A borated additive as described in claim 2.
Claim 10
Dependent Claim
26 words
A method for reducing fuel consumption in an internal combustion engine comprising treating the moving surfaces thereof with a lubricant composition as described in claim 1.
Claim 11
Dependent Claim
23 words
The composition of claim 1 wherein said compositions contains an effective friction reducing and oxidative stabilizing amount of the multifunctional additive described therein.
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) | 1987-10-23 | 1988-04-23 | 1988-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-10-23 | 1992-04-23 | 1992-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-10-23 | 1996-04-23 | 1996-10-23 | $7700.00 | Window Closed / Lapsed |