US3962104A
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Lubricating oil compositions
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1974-06-24
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Granted: 1976-06-08
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Expires: 1994-06-24
Abstract
Abstract Lubricating oils containing as an ashless detergent a quaternary ammonium salt derived from an organic acid, (e.g. carboxylic acid, sulphonic acid, alkyl phenol or phosphosulphurised hydrocarbon) and a cation obtained by the reaction of a tertiary amine, olefin oxide and water.
Inventors
- 👤 Swietlik Joseph Marian
- 👤 Michael David Sexton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:55
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/30; C10M2207/302; C10M2207/304; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/062; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/12; C10M2223/121; C10M2225/00; C10M2225/04; C10N; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
188 words
A lubricating oil composition comprising a major amount of a mineral or synthetic lubricating oil and a minor amount of a quaternary ammonium salt useful as an oil improving additive, wherein: the cation is derived from the reaction product of a one molar proportion of tertiary amine with one or more molar proportions of an olefin oxide and an amount of water in excess of stoichiometric, the anion is derived from an organic acid, and wherein: said tertiary amine has the formula R 1 R 2 R 3 N where R 1 , R 2 and R 3 are the same or different alkyl, cycloalkyl, alkenyl, cycloalkenyl, substituted alkyl, substituted alkenyl, aromatic or substituted aromatic groups, each having 1 to 20 carbon atoms; said olefin oxide has the formula: ##EQU11## where R 16 , R 17 , R 18 and R 19 which may be the same or different are hydrogen atoms, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aromatic or substituted aromatic groups; and wherein said organic acid is selected from the group consisting of carboxylic acid, carboxylic acid anhydride, dialkyldithiophosphoric acid, diaryldithiophosphoric acid, phenols, sulphonic acid, and phosphosulfurized hydrocarbon.
Claim 2
Dependent Claim
188 words
A lubricating oil composition comprising a major amount of a mineral or synthetic lubricating oil and a minor amount of a quaternary ammonium salt useful as an oil improving additive, wherein: the cation is derived from the reaction product of a one molar proportion of tertiary amine with one or more molar proportions of an olefin oxide and an amount of water in excess of stoichiometric, the anion is derived from an organic acid, and wherein: said tertiary amine has the formula R 1 R 2 R 3 N where R 1 , R 2 and R 3 are the same or different alkyl, cycloalkyl, alkenyl, cycloalkenyl, substituted alkyl, substituted alkenyl, aromatic or substituted aromatic groups, each having 1 to 20 carbon atoms; said olefin oxide has the formula: ##EQU11## where R 16 , R 17 , R 18 and R 19 which may be the same or different are hydrogen atoms, alkyl, cycloalkyl, alkenyl, cycloalkenyl, aromatic or substituted aromatic groups; and wherein said organic acid is selected from the group consisting of carboxylic acid, carboxylic acid anhydride, dialkyldithiophosphoric acid, diaryldithiophosphoric acid, phenols, sulphonic acid, and phosphosulfurized hydrocarbon.
Claim 3
Dependent Claim
64 words
A composition according to claim 1 wherein the tertiary amine is a diamine of the formula R 4 R 5 N(CH 2 ) n NR 6 R 7 where n is an integer of one or more and R 4 , R 5 R 6 and R 7 are the same or different alkyl, substituted alkyl, cycloalkyl, alkenyl, cycloalkenyl, aromatic or substituted aromatic groups.
Claim 4
Dependent Claim
59 words
A composition according to claim 1 wherein the tertiary amine is an alkylated alkylene polyamine of the formula ##EQU12## where n is an integer of one or more and R 8 , R 9 , R 10 , R 11 and R 12 are the same or different alkyl, substituted alkyl, cycloalkyl, alkenyl, cycloalkenyl, aromatic or substituted aromatic groups.
Claim 5
Dependent Claim
16 words
A composition according to claim 1 wherein the tertiary amine is pyridine or a substituted pyridine.
Claim 6
Dependent Claim
26 words
A composition according to claim 1 wherein the tertiary amine is an amine of the formula ##EQU13## where n is an integer of two or more.
Claim 7
Dependent Claim
13 words
A composition according to claim 1 wherein the tertiary amine is hexamethylene tetramine.
Claim 8
Dependent Claim
22 words
A composition according to claim 1 wherein the quaternary ammonium salt is derived from a carboxylic acid or a carboxylic acid anhydride.
Claim 9
Dependent Claim
23 words
A composition according to claim 7 wherein the acid is an alkyl succinic acid or an alkenyl succinic acid or an anhydride thereof.
Claim 10
Dependent Claim
16 words
A composition according to claim 1 wherein the quaternary ammonium salt is derived from a phenol.
Claim 11
Dependent Claim
13 words
A composition according to claim 9 wherein the phenol is a monoalkyl phenol.
Claim 12
Dependent Claim
50 words
A composition according to claim 1 wherein the quaternary ammonium salt is derived from a methylene bis-phenol of the formula. ##SPC9## where R and R' which may be the same or different are hydrogen, an alkyl group, cycloalkyl group, alkenyl group or aromatic group, and m and n are integers.
Claim 13
Dependent Claim
59 words
A composition according to claim 1 wherein the quaternary ammonium salt is derived from a sulphurised phenol of the formula ##SPC10## or ##SPC11## where R and R' which may be the same or different are hydrogen, an alkyl group, cycloalkyl group, alkenyl group or aromatic group, m and n are integers and x is 1, 2, 3, or 4.
Claim 14
Dependent Claim
17 words
A composition according to claim 1 wherein the quaternary ammonium salt is derived from a sulphonic acid.
Claim 15
Dependent Claim
30 words
A composition according to claim 13 wherein the sulphonic acid has the formula ##SPC12## where R is hydrogen, or an alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl, or a substituted aryl group.
Claim 16
Dependent Claim
17 words
A composition according to claim 1 wherein the quaternary ammonium salt is derived from a phosphosulphurised hydrocarbon.
Claim 17
Dependent Claim
18 words
A composition according to claim 1 which comprises 0.001 to 10.0% by weight of the quaternary ammonium salt.
References Cited (Backward Citations)
US3428561A
Cited
US3778371A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |