US4579674A
Expired / Lapsed
US
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Hydrocarbylsuccinimide of a secondary hydroxyl-substituted polyamine and lubricating oil containing same
Assignee: Texaco Inc
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Filing: 1981-12-28
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Granted: 1986-04-01
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Expires: 2001-12-28
Abstract
Abstract A new hydrocarbyl-substituted succinimide of a secondary hydroxyl-substituted diamine or polyamine represented by the formula: ##STR1## in which R is a hydrocarbon radical having from 50 to 400 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 6 carbon atoms, and y and z are numbers from 1 to 10, a method of preparing same, and a lubricating oil composition are provided.
Inventors
- 👤 Raymond C. Schlicht
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:28
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C10; C10M; C10M133/00; C10M133/52; C10M133/56; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
49 words
A novel compound represented by the formula: ##STR11## in which R is a hydrocarbon or a halogenated hydrocarbyl radical having from 50 to 400 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 6 carbon atoms, and y and z are numbers from 1 to 10.
Claim 2
Dependent Claim
49 words
A novel compound represented by the formula: ##STR11## in which R is a hydrocarbon or a halogenated hydrocarbyl radical having from 50 to 400 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 6 carbon atoms, and y and z are numbers from 1 to 10.
Claim 3
Dependent Claim
45 words
A novel compound represented by the formula: ##STR12## in which R is a monovalent hydrocarbon radical having from 50 to 200 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 3 carbon atoms and z is a number from 1 to 3.
Claim 4
Dependent Claim
45 words
A novel compound represented by the formula: ##STR12## in which R is a monovalent hydrocarbon radical having from 50 to 200 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 3 carbon atoms and z is a number from 1 to 3.
Claim 5
Dependent Claim
16 words
A compound according to claim 2 in which z is a number from 1 to 2.
Claim 6
Dependent Claim
22 words
A novel compound represented by the formula: ##STR13## in which R is a hydrocarbon radical having from 50 to 200 carbon atoms.
Claim 7
Dependent Claim
22 words
A novel compound represented by the formula: ##STR13## in which R is a hydrocarbon radical having from 50 to 200 carbon atoms.
Claim 8
Dependent Claim
22 words
A compound according to claim 4 in which R is a monovalent hydrocarbon radical having from about 60 to 100 carbon atoms.
Claim 9
Dependent Claim
68 words
A lubricant composition comprising a major proportion of an oil of lubricating viscosity and a minor dispersant amount of a compound corresponding to the formula: ##STR14## in which R is a hydrocarbon radical or a halogenated hydrocarbyl radical having from 50 to 400 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 6 carbon atoms, and y and z are numbers from 1 to 10.
Claim 10
Dependent Claim
68 words
A lubricant composition comprising a major proportion of an oil of lubricating viscosity and a minor dispersant amount of a compound corresponding to the formula: ##STR14## in which R is a hydrocarbon radical or a halogenated hydrocarbyl radical having from 50 to 400 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 6 carbon atoms, and y and z are numbers from 1 to 10.
Claim 11
Dependent Claim
63 words
A lubricant composition comprising a major proportion of an oil of lubricating viscosity and a minor dispersant amount of a compound represented by the formula: ##STR15## in which R is a monovalent hydrocarbon radical having from 50 to 200 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 3 carbon atoms and z is a number from 1 to 3.
Claim 12
Dependent Claim
63 words
A lubricant composition comprising a major proportion of an oil of lubricating viscosity and a minor dispersant amount of a compound represented by the formula: ##STR15## in which R is a monovalent hydrocarbon radical having from 50 to 200 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 3 carbon atoms and z is a number from 1 to 3.
Claim 13
Dependent Claim
33 words
A lubricating oil composition according to claim 6 in which said dispersant compound is represented by the formula: ##STR16## in which R is a hydrocarbon radical having from 50 to 200 carbon atoms.
Claim 14
Dependent Claim
24 words
A lubricating oil composition according to claim 8 in which R is a monovalent hydrocarbon radical having from about 60 to 100 carbon atoms.
Claim 15
Dependent Claim
18 words
A lubricant composition according to claim 6 containing from about 0.5 to 10 weight percent of said dispersant.
Claim 16
Dependent Claim
18 words
A lubricant composition according to claim 8 containing from about 0.5 to 10 weight percent of said dispersant.
Claim 17
Dependent Claim
57 words
A lubricating oil concentrate containing from about 10 to 65 weight percent of a compound represented by the formula: ##STR17## in which R is a hydrocarbon radical having from 50 to 400 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 6 carbon atoms, and y and z are numbers from 1 to 10.
Claim 18
Dependent Claim
57 words
A lubricating oil concentrate containing from about 10 to 65 weight percent of a compound represented by the formula: ##STR17## in which R is a hydrocarbon radical having from 50 to 400 carbon atoms, X is a divalent hydrocarbon radical having from 2 to 6 carbon atoms, and y and z are numbers from 1 to 10.
Claim 19
Dependent Claim
32 words
A lubricating oil concentrate according to claim 12 in which said compound is represented by the formula: ##STR18## in which R is a hydrocarbon radical having from 50 to 200 carbon atoms.
Claim 20
Independent Claim
104 words
A method for preparing a hydrocarbylsuccinimide having a seconary hydroxyl-substituted diamine or polyamine moiety which comprises reacting in the presence of a base a glycidyl halide having from 3 to 10 carbon atoms with an amine having at least two primary amine groups employing at least two moles of said amine per mole of said glycidyl halide to produce a polyamine reaction product characterized by having a secondary hydroxyl group and reacting said reaction product with a hydrocarbyl succinic anhydride, in which the hydrocarbyl radical has from about 50 to 400 carbon atoms to produce a hydrocarbylsuccinimide of a secondary hydroxyl-substituted diamine or polyamine.
Claim 21
Independent Claim
104 words
A method for preparing a hydrocarbylsuccinimide having a seconary hydroxyl-substituted diamine or polyamine moiety which comprises reacting in the presence of a base a glycidyl halide having from 3 to 10 carbon atoms with an amine having at least two primary amine groups employing at least two moles of said amine per mole of said glycidyl halide to produce a polyamine reaction product characterized by having a secondary hydroxyl group and reacting said reaction product with a hydrocarbyl succinic anhydride, in which the hydrocarbyl radical has from about 50 to 400 carbon atoms to produce a hydrocarbylsuccinimide of a secondary hydroxyl-substituted diamine or polyamine.
Claim 22
Dependent Claim
17 words
The method of claim 14 wherein said hydrocarbyl radical as from about 60 to 100 carbon atoms.
Claim 23
Dependent Claim
9 words
A hydrocarbylsuccinimide prepared by the method of claim 14.
Claim 24
Dependent Claim
24 words
A lubricant composition comprising a major proportion of an oil of lubricating viscosity and a minor dispersant amount of the hydrocarbylsuccinimide of claim 16.
Claim 25
Dependent Claim
17 words
The lubricant composition of claim 17 containing from about 0.5 to 10 weight percent of said dispersant.
Claim 26
Dependent Claim
24 words
A concentrate composition comprising a minor proportion of an oil of lubricating viscosity and a major dispersant amount of the hydrocarbylsuccinimide of claim 16.
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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) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |