Patent US4230588A successfully refreshed from Google Patents.
US4230588A
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US
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Fuel and lubricant additives from aminoalkylalkanolamines
Assignee: Phillips Petroleum Co
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Filing: 1978-08-31
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Granted: 1980-10-28
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Expires: 1998-08-31
Abstract
Abstract Fatty acids are reacted with aminoalkylalkanolamines to form amide amine alcohols, multiamide-alcohols, or multiamide-esters that have good detergent properties in fuels and lubricants. In an embodiment of the invention reaction products in which all of the reactant nitrogen has not been amidated are further reacted with arylsulfonic acid to provide more water tolerant products.
Inventors
- 👤 Benedict R. Bonazza
- 👤 Sidney Schiff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:31
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224; C10L1/24; C10L1/2431; C10L1/2437; C10M; C10M133/00; C10M133/02; C10M133/16; C10M135/00; C10M135/08; C10M135/10; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/12; C10M2215/24; C10M2215/28; C10M2219/00; C10M2219/04; C10M2219/044
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
70 words
A method for producing detergent additives for lubricants and fuels comprising reacting fatty acid represented by the formula RCOOH in which R is a hydrocarbyl radical of about 7 to about 99 carbon atoms with aminoalkanolamine represented by the formula H 3-a N(CH 2 CH 2 NR'CH 2 CH 2 OH) a where R' is H or CH 2 CH 2 NH 2 and a is 1, 2, or 3.
Claim 2
Independent Claim
70 words
A method for producing detergent additives for lubricants and fuels comprising reacting fatty acid represented by the formula RCOOH in which R is a hydrocarbyl radical of about 7 to about 99 carbon atoms with aminoalkanolamine represented by the formula H 3-a N(CH 2 CH 2 NR'CH 2 CH 2 OH) a where R' is H or CH 2 CH 2 NH 2 and a is 1, 2, or 3.
Claim 3
Dependent Claim
26 words
A method of claim 1 wherein the fatty acid is chosen from among capric acid, myristic acid, stearic acid, oleic acid, phenylstearic acid, and naphthyllauric acid.
Claim 4
Dependent Claim
16 words
A method of claim 1 wherein the aminoalkylalkanolamine is chosen from among N-(2-aminoethyl)-2-aminoethanol, N,N,-bis(2-aminoethyl)-2-aminoethanol, and tris[N-(2-hydroxyethyl)aminoethyl]amine.
Claim 5
Dependent Claim
14 words
A detergent additive for lubricants and fuels produced by the method of claim 1.
Claim 6
Dependent Claim
28 words
A method for producing a detergent additive for lubricants and fuels comprising further reacting the reaction product made by the method of claim 1 with an arylsulfonic acid.
Claim 7
Dependent Claim
14 words
A detergent additive for lubricants and fuels produced by the method of claim 5.
Claim 8
Dependent Claim
33 words
A composition comprising hydrocarbons suitable as fuel in an internal combustion engine and a compound of claim 5, said compound of claim 4 present in an amount effective as a fuel detergent additive.
Claim 9
Dependent Claim
27 words
A composition comprising a lubricating oil and a compound of claim 4, said compound of claim 5 present in an amount effective as a lubricating oil additive.
Claim 10
Dependent Claim
33 words
A composition comprising hydrocarbons suitable as fuel in an internal combustion engine and a compound of claim 6, said compound of claim 7 present in an amount effective as a fuel detergent additive.
Claim 11
Dependent Claim
26 words
A composition comprising a lubricating oil and a compound of claim 6, said compound of claim 6 present in an amount effective as lubricating oil additive.
Claim 12
Dependent Claim
56 words
A method for reducing engine deposits in an internal combustion engine comprising the addition of a fuel detergent additive of claim 4 to the hydrocarbon fuel for the engine, said fuel detergent being added in an amount effective to reduce engine deposits and using said hydrocarbon fuel detergent additive as fuel in an internal combustion engine.
Claim 13
Dependent Claim
58 words
A method for reducing engine deposits in an internal combustion engine comprising the addition of a detergent fuel additive of claim 6 to the hydrocarbon fuel for the engine, said fuel detergent being added in an amount effective to reduce engine deposits and using said hydrocarbon fuel with fuel detergent additive as fuel in an internal combustion engine.
References Cited (Backward Citations)
US3169980A
Cited
US3630904A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |