US5238466A
Expired / Lapsed
US
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Fuel additives derived from amido-amines
Assignee: ExxonMobil Chemical Patents Inc
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Filing: 1991-07-15
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Granted: 1993-08-24
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Expires: 2011-07-15
Abstract
Abstract The present invention is directed to a fuel additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.3 (e.g., from about 1 to 4) mono- or dicarboxylic acid producing moieties (preferably acid or anhydride moieties) per polyolefin molecule, (B) an amido-amine or thioamido-amine characterized by being a reaction product of at least a polyamine and an alpha, beta-unsaturated compound of the formula: ##STR1## wherein X is sulfur or oxygen, Y is --OR 4 , --SR 4 , or --NR 4 (R 5 ) , and R 1 , R 2 , R 3 , R 4 and R 5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl.
Inventors
- 👤 Antonio Gutierrez
- 👤 Robert D. Lundberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:26
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C08; C08F; C08F8/00; C08F8/30; C08F8/32; C08G; C08G63/00; C08G63/91; C08G63/912; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/1817; C10L1/22; C10L1/221; C10L1/24; C10L1/2493; C10M129/00; C10M129/86; C10M129/95; C10M133/00; C10M133/52; C10M149/00; C10M149/12; C10M149/14; C10M149/18; C10M149/22; C10M151/00; C10M151/04; C10M2205/00; C10M2205/02; C10M2205/026; C10M2205/06; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/028; C10M2207/04; C10M2207/044; C10M2207/10; C10M2207/12; C10M2207/129; C10M2207/14; C10M2207/144; C10M2207/146; C10M2207/16; C10M2207/26; C10M2207/262; C10M2207/28; C10M2207/287; C10M2207/289; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/101; C10M2209/103; C10M2209/104; C10M2209/107; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; C10M2215/122; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/04; C10M2217/042; C10M2217/043; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/08; C10M2219/082; C10M2219/085; C10M2219/087; C10M2219/088; C10M2219/089; C10M2219/10; C10M2219/102; C10M2219/104; C10M2219/106; C10M2221/00; C10M2221/02; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/09; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2010/12; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/06; C10N2040/25; C10N2040/252; C10N2040/253; C10N2040/255; C10N2040/26; C10N2070/00; C10N2070/02; F; F02; F02B; F02B1/00; F02B1/02; F02B1/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
238 words
A process for producing a dispersant useful as an oil additive which comprises: (a) providing a long chain hydrocarbyl substituted mono- or dicarboxylic acid producing material formed by reacting an olefin polymer of C 2 to C 10 monoolefin having a number average molecular weight of about 300 to 10,000 and at least one of a C 4 to C 10 monounsaturated dicarboxylic acid material and a C 3 to C 10 monounsaturated monocarboxylic acid material, said acid producing material having an average of at least about 0.3 dicarboxylic acid producing moieties, per molecule of said olefin polymer present in the reaction mixture used to form said acid producing material; (b) providing an amido-amine compound having at least one primary amino group prepared by reacting at least one polyamine with at least one alpha, beta-unsaturated compound of the formula: ##STR24## wherein X is sulfur or oxygen, Y is --OR 4 ,--SR 4 , or --NR 4 (R 5 ) , and R 1 , R 2 , R 3 , R 4 and R 5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl; and (c) contacting the said acid producing material with said amido-amine compound under conditions sufficient to effect reaction of at least a portion of the primary amino groups on said amido-amine compound with at least a portion of the acid-producing groups in said acid producing material, to form said dispersant.
Claim 2
Dependent Claim
238 words
A process for producing a dispersant useful as an oil additive which comprises: (a) providing a long chain hydrocarbyl substituted mono- or dicarboxylic acid producing material formed by reacting an olefin polymer of C 2 to C 10 monoolefin having a number average molecular weight of about 300 to 10,000 and at least one of a C 4 to C 10 monounsaturated dicarboxylic acid material and a C 3 to C 10 monounsaturated monocarboxylic acid material, said acid producing material having an average of at least about 0.3 dicarboxylic acid producing moieties, per molecule of said olefin polymer present in the reaction mixture used to form said acid producing material; (b) providing an amido-amine compound having at least one primary amino group prepared by reacting at least one polyamine with at least one alpha, beta-unsaturated compound of the formula: ##STR24## wherein X is sulfur or oxygen, Y is --OR 4 ,--SR 4 , or --NR 4 (R 5 ) , and R 1 , R 2 , R 3 , R 4 and R 5 are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl; and (c) contacting the said acid producing material with said amido-amine compound under conditions sufficient to effect reaction of at least a portion of the primary amino groups on said amido-amine compound with at least a portion of the acid-producing groups in said acid producing material, to form said dispersant.
Claim 3
Dependent Claim
27 words
The process according to claim 1 wherein said polyamine comprises amines containing from 2 to 60 carbon atoms and from 2 to 12 nitrogen atoms per molecule.
Claim 4
Dependent Claim
36 words
The process according to claim 2, wherein said polyamine comprises a polyalkylenepolyamine wherein each said alkylene group contains from 2 to 40 carbons and said polyalkylenepolyamine contains from 5 to about 9 nitrogen atoms per molecule.
Claim 5
Dependent Claim
103 words
The process according to claim 1, wherein said hydrocarbyl substituted acid producing material comprises a hydrocarbyl substituted C 4 to C 10 monounsaturated dicarboxylic acid producing material which comprises polyisobutylene of about 900 to 5000 number average molecular weight substituted with succinic anhydride moieties, said amine comprises polyalkylenepolyamine wherein each said alkylene group contains from 2 to 6 carbons and said polyalkyenepolyamine contains from 5 to 9 nitrogen atoms per molecule, and an acrylate-type compound comprising at least one member selected from the group consisting of methyl acrylate, ethyl acrylate, propyl acrylate, butyl acrylate, methyl methacrylate, ethyl methacylate, propyl methacrylate, and butyl methacrylate.
Claim 6
Dependent Claim
13 words
The process according to claims 1 or 4, wherein said polyamine comprises polyethylenepolyamine.
Claim 7
Dependent Claim
27 words
The process according to claims 1 or 4, wherein said dispersant is borated to provide from about 0.05 to 2.0 weight percent boron in said borated dispersant.
Claim 8
Dependent Claim
27 words
The process according to claim 1, wherein the ratio of acid producing moieties per molecule of olefin polymer in said dispersant is from about 0.9 to 1.3
Claim 9
Dependent Claim
22 words
The process of claim 7, wherein said number average molecular weight of said fist olefin polymer is from about 1300 to 4,000.
Claim 10
Dependent Claim
13 words
The process of claim 8, wherein said monounsaturated acid material comprises maleic anhydride.
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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) | 1996-08-23 | 1997-02-22 | 1997-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-08-23 | 2001-02-22 | 2001-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-08-23 | 2005-02-22 | 2005-08-24 | $7700.00 | Window Closed / Lapsed |