US4273665A
Expired / Lapsed
US
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Friction reducing additives and compositions thereof
Assignee: Mobil Oil AS
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Filing: 1979-10-09
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Granted: 1981-06-16
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Expires: 1999-10-09
Abstract
Abstract Hydrolysis products of 1-(2-hydroxyalkyl)-2-alkyl- or alkenyl imidazolines and borated adducts of hydrolyzed 1-(2-hydroxyethyl)-2-alkylimidazolines are highly effective friction reducing or friction modifying additives when incorporated into lubricating compositions.
Inventors
- 👤 Milton Braid
- 👤 Andrew G. Horodysky
- 👤 Joan M. Kaminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:38
CPC Classifications
C; C07; C07F; C07F5/00; C07F5/02; C07F5/025; C10; C10M; C10M133/00; C10M133/02; C10M133/16; C10M139/00; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2211/00; C10M2211/02; C10M2215/00; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/223; C10M2215/224; C10M2215/24; C10M2215/28; C10M2227/00; C10M2227/02; C10M2227/04; C10M2227/06; C10M2227/061; C10M2227/062; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2050/00; C10N2050/10; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
81 words
A lubricant composition comprising a major proportion of an oil of lubricating viscosity or a grease prepared therefrom and a minor effective proportion of a friction reducing or friction modifying additive selected from the group consisting of a hydrolyzed derivative of a 1-(2-hydroxyalkyl)-2-alkylimidazoline, a 1-(2-hydroxyalkyl)-2-alkenylimidazoline and borated derivatives thereof wherein said alkyl or alkenyl portion of said imidazoline contains from about 9 to 29 carbon atoms and said alkyl portion of the hydroxyalkyl moiety contains from 1 to 6 carbon atoms.
Claim 2
Dependent Claim
81 words
A lubricant composition comprising a major proportion of an oil of lubricating viscosity or a grease prepared therefrom and a minor effective proportion of a friction reducing or friction modifying additive selected from the group consisting of a hydrolyzed derivative of a 1-(2-hydroxyalkyl)-2-alkylimidazoline, a 1-(2-hydroxyalkyl)-2-alkenylimidazoline and borated derivatives thereof wherein said alkyl or alkenyl portion of said imidazoline contains from about 9 to 29 carbon atoms and said alkyl portion of the hydroxyalkyl moiety contains from 1 to 6 carbon atoms.
Claim 3
Dependent Claim
12 words
The composition of claim 1 wherein said additive is partially hydrolyzed 1-(2-hydroxyethyl)-2-heptadecenylimidazoline.
Claim 4
Dependent Claim
12 words
The composition of claim 1 wherein said additive is fully hydrolyzed 1-(2-hydroxyethyl)-2-heptadecenylimidazoline.
Claim 5
Dependent Claim
12 words
The composition of claims 2 or 3 wherein said additives is borated.
Claim 6
Dependent Claim
14 words
The composition of claim 1 wherein said additive is fully or partially hydrolyzed 1-(2-hydroxyethyl)-2-heptadecylimidazoline.
Claim 7
Dependent Claim
10 words
The compound of claim 5 wherein said additive is borated.
Claim 8
Dependent Claim
14 words
The composition of claim 1 wherein said composition comprises an oil of lubricating viscosity.
Claim 9
Dependent Claim
15 words
The composition of claim 7 wherein said oil is a mineral or refined petroleum oil.
Claim 10
Dependent Claim
15 words
The composition of claim 7 wherein said oil of lubricating viscosity is a synthetic oil.
Claim 11
Dependent Claim
19 words
The composition of claim 7 wherein said oil of lubricating viscosity is a mixture of mineral and synthetic oils.
Claim 12
Dependent Claim
17 words
The composition of claim 9 wherein the oil of lubricating viscosity is a mixture of synthetic oils.
Claim 13
Dependent Claim
11 words
The composition of claim 1 wherein said composition comprises a grease.
Claim 14
Dependent Claim
16 words
The composition of claim 1 containing from 0.1 to about 10 wt. % of said additive.
Claim 15
Dependent Claim
15 words
The composition of claim 13 containing about 0.25 to 4 wt. % of said additive.
Claim 16
Independent Claim
95 words
A method of reducing fuel consumption in an internal combustion engine by treating the moving surfaces thereof with a lubricant composition comprising a major proportion of an oil of lubricating viscosity and a minor effective amount of a friction reducing or friction modifying additive consisting of a fully or partially hydrolyzed derivative of a 1-(2-hydroxyalkyl)-2-alkylimidazoline, a 1-(2-hydroxyalkyl)-2-alkenylimidazoline or borated derivatives thereof wherein said alkyl or alkenyl portion of said imidazoline has from about 9 to about 29 carbon atoms and said alkyl portion of the hydroxyalkyl moiety has from 1 to about 6 carbon atoms.
Claim 17
Independent Claim
95 words
A method of reducing fuel consumption in an internal combustion engine by treating the moving surfaces thereof with a lubricant composition comprising a major proportion of an oil of lubricating viscosity and a minor effective amount of a friction reducing or friction modifying additive consisting of a fully or partially hydrolyzed derivative of a 1-(2-hydroxyalkyl)-2-alkylimidazoline, a 1-(2-hydroxyalkyl)-2-alkenylimidazoline or borated derivatives thereof wherein said alkyl or alkenyl portion of said imidazoline has from about 9 to about 29 carbon atoms and said alkyl portion of the hydroxyalkyl moiety has from 1 to about 6 carbon atoms.
Claim 18
Dependent Claim
12 words
The method of claim 15 wherein said additive is partially hydrolyzed 1-(2-hydroxyethyl)-2-heptadecenylimidazoline.
Claim 19
Dependent Claim
12 words
The method of claim 15 wherein said additive is fully hydrolyzed 1-(2-hydroxyethyl)-2-heptadecenylimidazoline.
Claim 20
Independent Claim
12 words
The method of claims 15 or 16 wherein said imidazolines are borated.
Claim 21
Dependent Claim
14 words
The method of claim 15 wherein said additive is fully or partially hydrolyzed 1-(2-hydroxyethyl)-2-heptadecylimidazoline.
Claim 22
Dependent Claim
20 words
The method of claim 15 wherein the oil of lubricating viscosity is a mineral or synthetic oil or mixtures thereof.
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) | 1984-06-15 | 1984-12-15 | 1985-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-06-15 | 1988-12-15 | 1989-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-06-15 | 1992-12-15 | 1993-06-16 | $7700.00 | Window Closed / Lapsed |