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Patent US4512903A successfully refreshed from Google Patents.
US4512903A
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US
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Lubricant compositions containing amides of hydroxy-substituted aliphatic acids and fatty amines
Assignee: Texaco Inc
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Filing: 1983-06-23
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Granted: 1985-04-23
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Expires: 2003-06-23
Abstract
Abstract Amides prepared from mono- or poly hydroxy-substituted aliphatic monocarboxylic acids and primary or secondary amines which are useful as friction reducing agents.
Inventors
- 👤 Raymond C. Schlicht
- 👤 Anthony P. Skrobul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:40
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/08; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224; C10M; C10M133/00; C10M133/02; C10M133/16; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/06; C10M2215/064; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/04; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
97 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity and a minor effective friction-reducing amount of a reaction product formed by reacting equimolar amounts of an amine represented by the forming RR'NH wherein R is an aliphatic-based hydrocarbyl radical of about 10 to about 30 carbon atoms and R' is hydrogen or an alkyl group having 12 to 18 carbon atoms, with a hydroxy-substituted aliphatic monocarboxylic acid selected from the group consisting of glycolic, lactic, and 2,2 bis-(hydroxymethyl)propionic acid, said reaction being conducted at a temperature ranging from about 60° to 180° C.
Claim 2
Dependent Claim
97 words
A lubricant composition comprising a major amount of an oil of lubricating viscosity and a minor effective friction-reducing amount of a reaction product formed by reacting equimolar amounts of an amine represented by the forming RR'NH wherein R is an aliphatic-based hydrocarbyl radical of about 10 to about 30 carbon atoms and R' is hydrogen or an alkyl group having 12 to 18 carbon atoms, with a hydroxy-substituted aliphatic monocarboxylic acid selected from the group consisting of glycolic, lactic, and 2,2 bis-(hydroxymethyl)propionic acid, said reaction being conducted at a temperature ranging from about 60° to 180° C.
Claim 3
Dependent Claim
20 words
A lubricant composition according to claim 1 containing from about 0.001 to about 5.0 weight percent of said reaction product.
Claim 4
Dependent Claim
20 words
A lubricant composition according to claim 1 in which said reaction product is prepared from oleyl amine and glycolic acid.
Claim 5
Dependent Claim
20 words
A lubricant composition according to claim 1 in which said reaction product is prepared from bis-dodecyl amine and glycolic acid.
Claim 6
Dependent Claim
20 words
A lubricant composition according to claim 1 in which said reaction product is prepared from oleyl amine and lactic acid.
Claim 7
Dependent Claim
20 words
A lubricant composition according to claim 1 in which said reaction product is prepared from oleyl amine and 2,2-bis(hydroxymethyl)propionic acid.
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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) | 1988-04-22 | 1988-10-22 | 1989-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-04-22 | 1992-10-22 | 1993-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-04-22 | 1996-10-22 | 1997-04-23 | $7700.00 | Window Closed / Lapsed |