US4374032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant composition containing borated oxazoline friction reducer
Assignee: Mobil Oil AS
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Filing: 1980-03-28
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Granted: 1983-02-15
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Expires: 2000-03-28
Abstract
Abstract Boration of an oxazoline of the formula <IMAGE> where R is defined hereinbelow provides a new composition of matter which, when added to a lubricating oil, will reduce friction and decrease fuel consumption in an internal combustion engine.
Inventors
- 👤 Robert M. Gemmill
- 👤 Andrew G. Horodysky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:48
CPC Classifications
C; C10; C10M; C10M139/00; C10M2227/00; C10M2227/06; C10M2227/061
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
130 words
A lubricant composition comprising a major proporation of an oil of lubricating viscosity or a grease therefrom and a friction-reducing amount of the compound prepared by reacting tris(hydroxymethyl)aminomethane with a carboxylic acid of the formula: R--COOH wherein R is a C 9 to C 49 hydrocarbyl group, the reaction being carried out at from about 80° C. to about 250° C., the final temperature being sufficiently high to form an intermediate of the formula: ##STR4## followed by reacting said intermediate, at from about 50° C. to about 300° C., with a boron-containing compound selected from the group consisting of boric acid and a borate of the formula: (R'O).sub.x B(OH).sub.y wherein R' is a C 1 to C 6 alkyl, x is 1 to 3 and y is 0 to 2.
Claim 2
Dependent Claim
130 words
A lubricant composition comprising a major proporation of an oil of lubricating viscosity or a grease therefrom and a friction-reducing amount of the compound prepared by reacting tris(hydroxymethyl)aminomethane with a carboxylic acid of the formula: R--COOH wherein R is a C 9 to C 49 hydrocarbyl group, the reaction being carried out at from about 80° C. to about 250° C., the final temperature being sufficiently high to form an intermediate of the formula: ##STR4## followed by reacting said intermediate, at from about 50° C. to about 300° C., with a boron-containing compound selected from the group consisting of boric acid and a borate of the formula: (R'O).sub.x B(OH).sub.y wherein R' is a C 1 to C 6 alkyl, x is 1 to 3 and y is 0 to 2.
Claim 3
Dependent Claim
15 words
A composition of claim 1 wherein in preparing said compound the acid is oleic acid.
Claim 4
Dependent Claim
17 words
A composition of claim 1 wherein in preparing said compound the boron-containing compound used is boric acid.
Claim 5
Dependent Claim
22 words
A composition of claim 1 wherein in preparing said compound the acid is oleic acid and the boron-containing compound is boric acid.
Claim 6
Dependent Claim
12 words
A composition of claim 1 wherein the lubricant is a lubricating oil.
Claim 7
Dependent Claim
14 words
A composition of claim 5 wherein the lubricating oil is a synthetic lubricating oil.
Claim 8
Independent Claim
143 words
A method of reducing fuel consumption in an internal combustion engine comprising lubricating said engine with a lubricating oil composition comprising a major proportion of a lubricating oil and a fuel consumption reducing amount of the compound prepared by reacting tris(hydroxymethyl)aminomethane with a carboxylic acid of the formula: R--COOH wherein R is a C 9 to C 49 hydrocarbyl group, the reaction being carried out at from about 80° C. to about 250° C., the final temperature being sufficiently high to form an intermediate of the formula: ##STR5## followed by reacting said intermediate, at from about 50° C. to about 300° C., with a boron-containing compound selected from the group consisting of boric acid and a borate of the formula: (R'O).sub.x B(OH).sub.y wherein R' is a C 1 to C 6 alkyl, x is 1 to 3 and y is 0 to 2.
Claim 9
Independent Claim
143 words
A method of reducing fuel consumption in an internal combustion engine comprising lubricating said engine with a lubricating oil composition comprising a major proportion of a lubricating oil and a fuel consumption reducing amount of the compound prepared by reacting tris(hydroxymethyl)aminomethane with a carboxylic acid of the formula: R--COOH wherein R is a C 9 to C 49 hydrocarbyl group, the reaction being carried out at from about 80° C. to about 250° C., the final temperature being sufficiently high to form an intermediate of the formula: ##STR5## followed by reacting said intermediate, at from about 50° C. to about 300° C., with a boron-containing compound selected from the group consisting of boric acid and a borate of the formula: (R'O).sub.x B(OH).sub.y wherein R' is a C 1 to C 6 alkyl, x is 1 to 3 and y is 0 to 2.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-02-14 | 1986-08-16 | 1987-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-14 | 1990-08-16 | 1991-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-14 | 1994-08-16 | 1995-02-15 | $7700.00 | Window Closed / Lapsed |