US4797219A
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Novel dispersants for oleaginous compositions
Assignee: ExxonMobil Chemical Patents Inc
•
Filing: 1987-04-24
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Granted: 1989-01-10
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Expires: 2007-04-24
Abstract
Abstract According to the present invention, novel oil soluble compositions useful as dispersants are provided by reaction of a mono- or polycarboxylic acid acylating reactant with at least one heterocyclic polyol of the formula: ##STR1## wherein R 1 , R 2 , R 3 and R 4 are the same or different and are selected from the group consisting of H, alkyl and --CH(OH)R 5 , wherein R 5 is C 1 to C 10 alkyl, and wherein X and Y are the same or different and are H or C 1 to C 10 alkyl, with the proviso that at least one of R 1 , R 2 , R 3 and R 4 is the --CH(OH)R 5 moiety.
Inventors
- 👤 Antonio Guttierrez
- 👤 Jack Ryer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:31
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/19; C10L1/191; C08; C08F; C08F8/00; C08F8/14; C10M; C10M129/00; C10M129/86; C10M129/95; C10M167/00; C08F2810/00; C08F2810/20; C10M2205/00; C10M2205/22; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/027; C10M2207/028; C10M2207/10; C10M2207/12; C10M2207/121; C10M2207/123; C10M2207/125; C10M2207/129; C10M2207/14; C10M2207/144; C10M2207/146; C10M2207/22; C10M2207/26; C10M2207/262; C10M2207/28; C10M2207/287; C10M2207/289; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2209/086; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/02; C10M2217/028; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2221/00; C10M2221/02; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2223/06; C10M2223/065; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/06; C10M2227/061; C10M2229/00; C10M2229/04; C10M2229/041; C10N; C10N2010/00; C10N2010/02; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/25; C10N2040/251; C10N2040/252; C10N2040/253; C10N2040/255; C10N2040/28; C10N2070/00; C10N2070/02
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
138 words
An adduct formed by reacting at least one long chain hydrocarbyl polymer substituted mono- or polycarboxylic acid acylating reagent and at least one heterocyclic polyol of the formula: ##STR20## wherein R 1 , R 2 , R 3 and R 4 are the same or different and are selected from the group consisting of H, alkyl and --CH(OH)R 5 , wherein R 5 is hydrogen or alkyl of from 1 to 10 carbon atoms and X and Y are the same or different and are H or alkyl of from 1 to 10 carbon atoms, with the proviso that at least one of R 1 , R 2 , R 3 and R 4 is the --CH(OH)R 5 moiety, wherein said long chain hydrocarbon polymer has a number average molecular weight of from about 700 to about 5000.
Claim 2
Dependent Claim
138 words
An adduct formed by reacting at least one long chain hydrocarbyl polymer substituted mono- or polycarboxylic acid acylating reagent and at least one heterocyclic polyol of the formula: ##STR20## wherein R 1 , R 2 , R 3 and R 4 are the same or different and are selected from the group consisting of H, alkyl and --CH(OH)R 5 , wherein R 5 is hydrogen or alkyl of from 1 to 10 carbon atoms and X and Y are the same or different and are H or alkyl of from 1 to 10 carbon atoms, with the proviso that at least one of R 1 , R 2 , R 3 and R 4 is the --CH(OH)R 5 moiety, wherein said long chain hydrocarbon polymer has a number average molecular weight of from about 700 to about 5000.
Claim 3
Dependent Claim
18 words
The adduct of claim 1 wherein said acylating agent comprises a long chain hydrocarbyl-substituted succinic acid or anhydride.
Claim 4
Dependent Claim
36 words
The adduct according to claim 2 wherein both R 1 and R 2 or both R 3 and R 4 groups in said heterocyclic polyol comprise --CH(OH)R 5 , wherein R 5 is as defined above.
Claim 5
Dependent Claim
40 words
The adduct according to claim 2 wherein at least 3 of said R 1 , R 2 , R 3 and R 4 groups are --CH(OH)R 5 , wherein R 5 is H or C 1 to C 5 alkyl.
Claim 6
Dependent Claim
12 words
The adduct of claim 1 wherein X and Y are each H.
Claim 7
Dependent Claim
25 words
The adduct of claim 5 wherein both R 1 and R 2 or both R 3 and R 4 are each said --CH(OH)R 5 moiety.
Claim 8
Dependent Claim
28 words
The adduct of claim 5 wherein at least 3 of said R 1 , R 2 , R 3 and R 4 groups are said --CH(OH)R 5 moiety.
Claim 9
Dependent Claim
24 words
The adduct of claim 5 wherein each of R 1 , R 2 , R 3 and R 4 groups are --CH(OH)R 5 .
Claim 10
Dependent Claim
15 words
The adduct of claim 8 wherein R 5 is C 1 to C 5 alkyl.
Claim 11
Dependent Claim
15 words
The adduct of claim 8 wherein R 5 is C 1 to C 3 alkyl.
Claim 12
Dependent Claim
10 words
The adduct of claim 8 wherein R 5 is H.
Claim 13
Dependent Claim
25 words
The adduct of claims 5, 6, 7, 8, 9, 10 or 11 wherein said acylating agent comprises a long chain hydrocarbyl-substituted succinic acid or anhydride.
Claim 14
Dependent Claim
26 words
The adduct of claim 12 wherein said long chain hydrocarbyl substituent comprises polyisobutylene having a number average molecular weight of from about 700 to about 5000.
Claim 15
Dependent Claim
146 words
An oleaginous composition comprising (i) lubricating oil, and (ii) an adduct formed by reacting at least one long chain hydrocarbyl substituted mono- or polycarboxylic acid acylating agent and at least one heterocyclic polyol of the formula: ##STR21## wherein R 1 , R 2 , R 3 and R 4 are the same or different and are selected from the group consisting of H, alkyl and --CH(OH)R 5 , wherein R 5 is hydrogen or alkyl of from 1 to 10 carbon atoms and X and Y are the same or different and are H or alkyl of from 1 to 10 carbon atoms, with the proviso that at least one of R 1 , R 2 , R 3 and R 4 is the --CH(OH)R 5 moiety, wherein said long chain hydrocarbon polymer has a number average molecular weight of from about 700 to about 5000.
Claim 16
Dependent Claim
146 words
An oleaginous composition comprising (i) lubricating oil, and (ii) an adduct formed by reacting at least one long chain hydrocarbyl substituted mono- or polycarboxylic acid acylating agent and at least one heterocyclic polyol of the formula: ##STR21## wherein R 1 , R 2 , R 3 and R 4 are the same or different and are selected from the group consisting of H, alkyl and --CH(OH)R 5 , wherein R 5 is hydrogen or alkyl of from 1 to 10 carbon atoms and X and Y are the same or different and are H or alkyl of from 1 to 10 carbon atoms, with the proviso that at least one of R 1 , R 2 , R 3 and R 4 is the --CH(OH)R 5 moiety, wherein said long chain hydrocarbon polymer has a number average molecular weight of from about 700 to about 5000.
Claim 17
Dependent Claim
13 words
The composition according to claim 14, wherein said oleaginous material is lubricating oil.
Claim 18
Dependent Claim
17 words
The composition according to claim 14, wherein said alkyl groups contain from 1 to 5 carbon atoms.
Claim 19
Dependent Claim
41 words
The composition according to claim 14, wherein at least 3 of said R 1 , R 2 , R 3 and R 4 groups comprise said --CH(OH)R 5 moiety, wherein R 5 is alkyl of from 1 to 5 carbon atoms.
Claim 20
Dependent Claim
27 words
The composition according to claim 17, wherein each of said R 1 , R 2 , R 3 and R 4 groups comprise said --CH(OH)R 5 moiety.
Claim 21
Dependent Claim
32 words
The composition according to claim 14, wherein said composition comprises a concentrate and wherein said adduct is present in said concentrate in an amount of from about 20 to 80 weight percent.
Claim 22
Dependent Claim
28 words
The composition according to claim 14 wherein said oleaginous material is present therein in a major amount and said adduct is present therein in a dispersant effective amount.
Claim 23
Dependent Claim
25 words
The composition according to claim 20 wherein said adduct is present in an amount of from about 0.01 to 8 weight percent of said composition.
Claim 24
Dependent Claim
23 words
The composition according to any of claims 14 and 15-21 wherein said acylating agent comprises a long chain hydrocarbyl-substituted succinic acid or anhydride.
Claim 25
Dependent Claim
27 words
The composition according to claim 22 wherein said long chain hydrocarbyl substituent comprises polyisobutylene having a number average molecular weight of from about 700 to about 5000.
Claim 26
Dependent Claim
11 words
The composition according to claim 23 wherein R 5 is hydrogen.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |