EP0136185A2
Expired / Lapsed
EP
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Process for boronating dispersants, boronated dispersants and fluid compositions containing the same
Assignee: Edwin Cooper Inc
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Filing: 1984-09-28
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Granted: —
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Expires: 2004-09-28
Abstract
Abstract Boronation of hydrocarbyl-substituted succinimide dispersants (e.g. for lubricating oils) may be conducted by adding a lower alcohol solution of a boronating agent to the dispersant and distilling out the alcohol. The product is substantially haze-free and is compatible with fluoroelastomers such as are often used in heavy duty clutch plate facings.
Inventors
- 👤 Robert Edward Malec
- 👤 Andrew George Papay
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 13:32
CPC Classifications
C; C10; C10M; C10M133/00; C10M133/52; C10M133/56; C07; C07F; C07F5/00; C07F5/02; C07F5/04; C08; C08F; C08F8/00; C08F8/42; C08F8/44; C10M2205/00; C10M2205/06; C10M2209/00; C10M2209/02; C10M2209/08; C10M2209/084; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2219/046; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/045; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/06; C10M2227/061; C10N; C10N2010/00; C10N2010/04; C10N2040/00; C10N2040/04; C10N2040/042; C10N2040/044; C10N2040/046; C10N2040/08; C10N2040/25; C10N2040/251; C10N2040/255; C10N2040/28
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
35 words
A process for boronating a hydrocarbyl-substituted succinimide or succinamide dispersant comprising adding a lower alcohol solution or slurry of a boronating agent to said dispersant and distilling said lower alcohol from the resultant reaction mixture.
Claim 2
Dependent Claim
35 words
A process for boronating a hydrocarbyl-substituted succinimide or succinamide dispersant comprising adding a lower alcohol solution or slurry of a boronating agent to said dispersant and distilling said lower alcohol from the resultant reaction mixture.
Claim 3
Dependent Claim
15 words
A process as claimed in claim 1, in which said boronating agent is boric acid.
Claim 4
Dependent Claim
15 words
A process as claimed in claim 2, in which said boric acid is ortho-boric acid.
Claim 5
Dependent Claim
18 words
A process as claimed in any one of claims 1 to 3, in which said alcohol is methanol.
Claim 6
Dependent Claim
51 words
A process as claimed in any one of claims 1 to 4, in which said dispersant has a succinimide portion derived from a polyalkyleneamine having the formula wherein R is a divalent aliphatic hydrocarbon group having 2-4 carbon atoms and n is an integer from 1-10 including mixtures of said polyalkyleneamines.
Claim 7
Dependent Claim
18 words
A process as claimed in claim 5, in which said polyalkyleneamine is a polyethyleneamine containing 2-6 ethyleneamine units.
Claim 8
Dependent Claim
34 words
A process as claimed in any one of claims 1 to 6, in which said dispersant is an olefin polymer substituted succinimide wherein said olefin polymer substituent has an average molecular weight of 500-500,000.
Claim 9
Dependent Claim
24 words
A process as claimed in claim 7, in which said olefin polymer substituent is a polyisobutene substituent having an average molecular weight of 700-5000.
Claim 10
Dependent Claim
39 words
A substantially haze-free boronated succinimide or succinamide dispersant having a boron content of 0.1-2.0 weight percent boron, an NTU value of 20 or lower and which is compatible with fluoroelastomers as measured by the Caterpillar Oil Test Number TO-3.
Claim 11
Dependent Claim
39 words
A substantially haze-free boronated succinimide or succinamide dispersant having a boron content of 0.1-2.0 weight percent boron, an NTU value of 20 or lower and which is compatible with fluoroelastomers as measured by the Caterpillar Oil Test Number TO-3.
Claim 12
Dependent Claim
37 words
A functional fluid, e.g. lubricating oil, composition comprising a major amount of a functional fluid, e.g. an oil of lubricating viscosity, and a minor amount of a boronated succinimide or succinamide dispersant as claimed in claim 9.
References Cited (Backward Citations)
No citation records indexed.
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