US4617138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modified succinimides (II)
Assignee: Chevron USA Inc
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Filing: 1985-04-12
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Granted: 1986-10-14
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Expires: 2005-04-12
Abstract
Abstract Disclosed are polyamino alkenyl or alkyl succinimides which have been modified by treatment with a lactone to yield polyamino alkenyl or alkyl succinimides wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene group. The additives so disclosed are useful as dispersants in lubricating oils, gasolines, marine crankcase oils and hydraulic oils.
Inventors
- 👤 Robert H. Wollenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:46
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224; C10L1/234; C10L1/238; C10L1/2383; C10M; C10M133/00; C10M133/52; C10M133/56; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10N; C10N2040/00; C10N2040/08; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
66 words
A polyamino alkenyl or alkyl succinimide wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene wherein said hydrocarbylcarbonyl group contains 1 to 30 carbon atoms; said alkylene is a three or four carbon alkylene group or a three of four carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbons each.
Claim 2
Dependent Claim
66 words
A polyamino alkenyl or alkyl succinimide wherein one or more of the basic nitrogens of the polyamino moiety is substituted with a hydrocarbylcarbonylalkylene wherein said hydrocarbylcarbonyl group contains 1 to 30 carbon atoms; said alkylene is a three or four carbon alkylene group or a three of four carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbons each.
Claim 3
Dependent Claim
20 words
The polyamino alkenyl or alkyl succinimide of claim 1 wherein said alkylene is a three or four carbon alkylene group.
Claim 4
Dependent Claim
14 words
The polyamino alkenyl or alkyl succinimide of claim 2 wherein said alkylene is propylene.
Claim 5
Dependent Claim
14 words
The polyamino alkenyl or alkyl succinimide of claim 2 wherein said alkylene is butylene.
Claim 6
Dependent Claim
35 words
The polyamino alkenyl or alkyl succinimide of claim 1 wherein said alkylene is a three or four carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbons each.
Claim 7
Dependent Claim
16 words
The polyamino alkenyl or alkyl succinimide of claim 1 wherein said hydrocarbylcarbonylalkylene is methylcarbonylpropylene (i.e., ##STR14##
Claim 8
Dependent Claim
146 words
A compound of the formula: ##STR15## wherein R 1 is alkenyl or alkyl of from 10 to 300 carbon atoms; R 2 is alkylene of 2 to 10 carbon atoms; R 6 is hydrogen, lower alkyl of from 1 to 6 carbon atoms, and hydrocarbylcarbonylalkylene wherein said hydrocarbyl contains from 1 to 30 carbon atoms; said alkylene is a three of four carbon alkylene group or a three or four carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each; a is an integer of from 1 to 6; and T is --N(R 6 ) 2 , --NHR 6 and ##STR16## wherein R 6 is as defined above and R 1 is alkenyl or alkyl of from 10 to 300 carbon atoms, with the proviso that the compound contains at least one R 6 which is hydrocarbylcarbonylalkylene.
Claim 9
Dependent Claim
146 words
A compound of the formula: ##STR15## wherein R 1 is alkenyl or alkyl of from 10 to 300 carbon atoms; R 2 is alkylene of 2 to 10 carbon atoms; R 6 is hydrogen, lower alkyl of from 1 to 6 carbon atoms, and hydrocarbylcarbonylalkylene wherein said hydrocarbyl contains from 1 to 30 carbon atoms; said alkylene is a three of four carbon alkylene group or a three or four carbon alkylene group substituted with from 1 to 3 alkyl groups of from 1 to 2 carbon atoms each; a is an integer of from 1 to 6; and T is --N(R 6 ) 2 , --NHR 6 and ##STR16## wherein R 6 is as defined above and R 1 is alkenyl or alkyl of from 10 to 300 carbon atoms, with the proviso that the compound contains at least one R 6 which is hydrocarbylcarbonylalkylene.
Claim 10
Dependent Claim
25 words
A lubricating oil composition comprising an oil of lubricating viscosity and an amount effective to provide dispersancy of a compound as defined in claim 7.
Claim 11
Dependent Claim
34 words
A lubricating oil concentrate comprising from about 90 to 10 weight percent of an oil of lubricating viscosity and from about 10 to 90 weight percent of a compound as defined in claim 7.
Claim 12
Dependent Claim
21 words
A compound as defined in claim 7 wherein R 1 is alkenyl or alkyl of from 20 to 100 carbon atoms.
Claim 13
Dependent Claim
19 words
A compound as defined in claim 10 wherein R 2 is alkylene of from 2 to 6 carbon atoms.
Claim 14
Dependent Claim
14 words
A compound as defined in claim 11 wherein the hydrocarbylcarbonylalkylene group is methylcarbonyl propylene.
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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) | 1989-10-13 | 1990-04-14 | 1990-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-10-13 | 1994-04-14 | 1994-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-10-13 | 1998-04-14 | 1998-10-14 | $7700.00 | Window Closed / Lapsed |