Patent US4974455A successfully refreshed from Google Patents.
US4298486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Friction reducing additives and compositions thereof
Assignee: Mobil Oil AS
•
Filing: 1979-11-23
•
Granted: 1981-11-03
•
Expires: 1999-11-23
Abstract
Abstract Boric acid salts and borate esters of hydroxyethyl alkyl imidazolines are effective friction reducing additives when incorporated into lubricating compositions.
Inventors
- 👤 Andrew G. Horodysky
- 👤 Joan M. Kaminski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:07
CPC Classifications
C; C10; C10M; C10M139/00; C10M133/00; C10M133/02; C10M133/38; C10M133/44; C10M133/46; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/30; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2050/00; C10N2050/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
83 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity or grease prepared therefrom and a minor amount of an additive, effective for providing friction reducing, copper anticorrosion, and antioxidant properties to said composition consisting of a boric acid salt or borate ester of a hydroxylakyl alkyl or alkenyl imidazoline in which said imidazoline has the following generalized structure: ##STR2## where R is C 5 -C 25 alkyl or alkenyl and R' is hydrogen or C 1 -C 25 alkyl.
Claim 2
Dependent Claim
83 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity or grease prepared therefrom and a minor amount of an additive, effective for providing friction reducing, copper anticorrosion, and antioxidant properties to said composition consisting of a boric acid salt or borate ester of a hydroxylakyl alkyl or alkenyl imidazoline in which said imidazoline has the following generalized structure: ##STR2## where R is C 5 -C 25 alkyl or alkenyl and R' is hydrogen or C 1 -C 25 alkyl.
Claim 3
Dependent Claim
15 words
The composition of claim 1 wherein the additive is the boric acid salt of 1-(2-hydroxyethyl)-2-heptadecenylimidazoline.
Claim 4
Dependent Claim
14 words
The composition of claim 1 wherein the additive is the borate ester of 1-(2-hydroxyethyl)-2-heptadecenylimidazoline.
Claim 5
Dependent Claim
15 words
The composition of claim 2 wherein the additive is the borate ester of 1-(2-hydroxyethyl)-2-(1-ethylpentyl) imidazoline.
Claim 6
Dependent Claim
17 words
The composition of claim 1 wherein said oil is a mineral oil, synthetic oil or mixtures thereof.
Claim 7
Dependent Claim
26 words
A method of reducing fuel consumption in an internal combustion engine comprising treating the moving surfaces thereof with a lubricant composition as described in claim 1.
Claim 8
Dependent Claim
78 words
A borated compound prepared by reacting an hydroxyalkyl alkyl or alkenyl imidazoline and boric acid in a solvent or mixture of solvents at temperatures of from 110° to 200° C. under reaction conditions whereby a boric acid salt or a borate ester of said imidazoline is prepared wherein said imidazoline is represented by the formula: ##STR3## wherein R is C 5 -C 25 alkyl or alkenyl group and R 1 is hydrogen or C 1 -C 6 alkyl.
Claim 9
Dependent Claim
78 words
A borated compound prepared by reacting an hydroxyalkyl alkyl or alkenyl imidazoline and boric acid in a solvent or mixture of solvents at temperatures of from 110° to 200° C. under reaction conditions whereby a boric acid salt or a borate ester of said imidazoline is prepared wherein said imidazoline is represented by the formula: ##STR3## wherein R is C 5 -C 25 alkyl or alkenyl group and R 1 is hydrogen or C 1 -C 6 alkyl.
Claim 10
Dependent Claim
16 words
The borated compound of claim 7 wherein said compound is the boric acid salt of 1-(2-hydroxyethyl)-2-heptadecenylimidazoline.
Claim 11
Dependent Claim
15 words
The borated compound of claim 7 wherein said compound is the borate ester of 1-(2-hydroxyethyl)-2-heptadecenylimidazoline.
Claim 12
Dependent Claim
15 words
The borated compound of claim 7 wherein said compound is the borate ester of 1-(2-hydroxyethyl)-2-(1-ethylpentyl)imidazoline.
Claim 13
Dependent Claim
22 words
The composition of claim 1 wherein the composition comprises a major amount of a grease prepared from an oil of lubricating viscosity.
Claim 14
Dependent Claim
20 words
The composition of claim 11 wherein said oil of lubricating viscosity is a mineral oil, 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) | 1984-11-02 | 1985-05-04 | 1985-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-02 | 1989-05-04 | 1989-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-02 | 1993-05-04 | 1993-11-03 | $7700.00 | Window Closed / Lapsed |