US4778610A
Expired / Lapsed
US
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Acid phosphites as multifunctional additives and compositions thereof
Assignee: Mobil Oil AS
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Filing: 1985-12-27
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Granted: 1988-10-18
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Expires: 2005-12-27
Abstract
Abstract Lubricant compositions having enhanced friction-reducing/antiwear properties are provided by incorporating therein minor amounts of a compound or mixture of compounds which are the reaction product(s) of hydroxyhydrocarbyl hydrocarbyl amines and phosphorus pentoxide.
Inventors
- 👤 Andrew G. Horodysky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:27
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C10M125/00; C10M125/24; C10M133/00; C10M133/02; C10M133/04; C10M133/06; C10M133/08; C10M133/38; C10M133/44; C10M133/46; C10M133/48; C10M137/08; C10M159/00; C10M159/12; C10M159/123; C10M2201/00; C10M2201/085; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/227; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/043; C10M2223/12; C10M2223/121; C10N; C10N2040/00; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
114 words
A lubricant composition comprising a major proportion of an oil of lubricating viscosity or a grease prepared therefrom and a minor friction-reducing/antiwear amount of a compound or mixture of compounds obtained by reacting (1) a hydroxyhydrocarbyl or polyhydroxyhydrocarbyl hydrocarbyl amine or diamine or a bis(hydroxyhydrocarbyl) hydrocarbyl amine or diamine having the following generalized formulae ##STR2## where R is C 6 -C 30 hydrocarbyl, R 1 is C 2 -C 6 hydrocarbylene, and x, y and z are 0 to about 15 with the proviso that x+y or x+y+z must be at least 1, and (2) phosphorus pentoxide and wherein at least a portion of said product is hydroxyalkylated or polyhydroxyalkylated amine-derived zwitterionic acid phosphate.
Claim 2
Dependent Claim
114 words
A lubricant composition comprising a major proportion of an oil of lubricating viscosity or a grease prepared therefrom and a minor friction-reducing/antiwear amount of a compound or mixture of compounds obtained by reacting (1) a hydroxyhydrocarbyl or polyhydroxyhydrocarbyl hydrocarbyl amine or diamine or a bis(hydroxyhydrocarbyl) hydrocarbyl amine or diamine having the following generalized formulae ##STR2## where R is C 6 -C 30 hydrocarbyl, R 1 is C 2 -C 6 hydrocarbylene, and x, y and z are 0 to about 15 with the proviso that x+y or x+y+z must be at least 1, and (2) phosphorus pentoxide and wherein at least a portion of said product is hydroxyalkylated or polyhydroxyalkylated amine-derived zwitterionic acid phosphate.
Claim 3
Dependent Claim
55 words
The composition of claim 1 wherein said friction-reducing/antiwear compound(s) and/or mixtures thereof is further reacted with up to molar amounts of additional organic nitrogenous basic material selected from the group consisting of alkyl amines or diamines, t-alkylamines, hydrocarbyl, hydrocarbylene diamines and alkoxylated amines or diamines having from 1 to about 30 carbon atoms or more.
Claim 4
Dependent Claim
15 words
The composition of claim 2 wherein the additional organic nitrogenous basic material is N-tallow-1,3 propylenediamine.
Claim 5
Dependent Claim
12 words
The composition of claim 1 wherein said amine or diamine is bis(2-hydroxyethyl)oleylamine.
Claim 6
Dependent Claim
13 words
The composition of claim 1 wherein said amine or diamine is bis(2-hydroxyethyl) cocoamine.
Claim 7
Dependent Claim
15 words
The composition of claim 1 wherein said major proportion is an oil of lubricating viscosity.
Claim 8
Dependent Claim
18 words
The composition of claim 6 wherein said oil is selected from mineral and synthetic oils and mixtures therof.
Claim 9
Dependent Claim
12 words
The composition of claim 7 wherein said oil is a mineral oil.
Claim 10
Dependent Claim
12 words
The composition of claim 8 wherein said oil is a synthetic oil.
Claim 11
Dependent Claim
12 words
The composition of claim 1 wherein said major amount is a grease.
Claim 12
Dependent Claim
31 words
The composition of claim 1 wherein said minor amount is present in an amount varying from about 0.1 to about 10 wt. % based on the total weight of the composition.
Claim 13
Dependent Claim
139 words
In a process of reducing friction and antiwear in an internal combustion engine comprising the improvement wherein the internal combustion engine is treated with a lubricant composition comprising a major proportion of an oil of lubricating viscosity or a grease prepared therefrom and a minor friction-reducing/antiwear amount of a compound or mixture of compounds obtained by reacting (1) a hydroxyhydrocarbyl or polyhydroxyhydrocarbyl hydrocarbyl amine or diamine or a bis(hydroxyhydrocarbyl) hydrocarbyl amine or diamine having the following generalized formulae ##STR3## where R is C 6 -C 30 hydrocarbyl, R 1 is C 2 -C 6 hydrocarbylene, and x, y and z are 0 to about 15 with the proviso that x+y or x+y+z must be at least 1, and (2) phosphorus pentoxide and wherein at least a portion of said product is a hydroxyalkylated or polyhydroxyalkylated amine-derived zwitterionic acid phosphate.
Claim 14
Dependent Claim
139 words
In a process of reducing friction and antiwear in an internal combustion engine comprising the improvement wherein the internal combustion engine is treated with a lubricant composition comprising a major proportion of an oil of lubricating viscosity or a grease prepared therefrom and a minor friction-reducing/antiwear amount of a compound or mixture of compounds obtained by reacting (1) a hydroxyhydrocarbyl or polyhydroxyhydrocarbyl hydrocarbyl amine or diamine or a bis(hydroxyhydrocarbyl) hydrocarbyl amine or diamine having the following generalized formulae ##STR3## where R is C 6 -C 30 hydrocarbyl, R 1 is C 2 -C 6 hydrocarbylene, and x, y and z are 0 to about 15 with the proviso that x+y or x+y+z must be at least 1, and (2) phosphorus pentoxide and wherein at least a portion of said product is a hydroxyalkylated or polyhydroxyalkylated amine-derived zwitterionic acid phosphate.
Claim 15
Dependent Claim
56 words
The process described in claim 12 wherein said friction-reducing/antiwear compound(s) and/or mixtures thereof is further reacted with up to molar amounts of additional organic nitrogenous basic material selected from the group consisting of alkyl amines or diamines, t-alkylamines, hydrocarbyl, hydrocarbylene diamines and alkoxylated amines or diamines having from 1 to about 30 carbon atoms or more.
Claim 16
Dependent Claim
15 words
The process of claim 13 wherein the additional organic nitrogenous basic material is N-tallow-1,3 propylenediamine.
Claim 17
Dependent Claim
12 words
The process of claim 14 wherein said amine or diamine is bis(2-hydroxyethyl)oleylamine.
Claim 18
Dependent Claim
12 words
The process of claim 15 wherein said amine or diamine is bis(2-hydroxyethyl)cocoamine.
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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) | 1991-10-18 | 1992-04-18 | 1992-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-18 | 1996-04-18 | 1996-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-18 | 2000-04-18 | 2000-10-18 | $7700.00 | Window Closed / Lapsed |