Patent US3526661A successfully refreshed from Google Patents.
US3526661A
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Oil-soluble multifunctional detergent-dispersant comprising an amide of a polyamine and an alkaryl keto acid
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1968-02-19
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Granted: 1970-09-01
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Expires: 1988-02-19
Overview & Biblio
Claims (0)
Citations (1)
Maintenance Schedule (3)
Categories & Tags (0)
Abstract
Abstract An oil-soluble additive useful for improving the properties of a fuel oil, a lubricating oil, a heating oil, a gasoline or the like is prepared by heating an aliphatic polyamine or amino alcohol with an alkylated aryl carboxylic acid at a temperature that causes the splitting out of water. The carboxylic acid is prepared by thermal diene addition of an alkylated aromatic hydrocarbon such as paraffin-wax-alkylated naphthalene, or of a ring-substituted hydroxy, amino, or vinyl derivative of such hydrocarbon, with an unsaturated monobasic acid, or with an unsaturated polybasic acid or its anhydride, such as maleic acid, maleic anhydride, acrylic acid, methacrylic acid, or the like. The additive can be modified by treatment with phosphorous acid.
Inventors
Bibliographic Details
Application Number
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Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:52
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/76; C07C59/84; C07C65/00; C07C65/32; C07C65/34; C07D; C07D295/00; C07D295/04; C07D295/12; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10M; C10M133/00; C10M133/02; C10M133/16; C10L1/221; C10L1/222; C10L1/224; C10L1/228; C10L1/2283; C10L1/232; C10L1/26; C10L1/2691; C10M2201/00; C10M2201/06; C10M2201/062; C10M2205/00; C10M2205/02; C10M2205/026; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/027; C10M2207/28; C10M2207/282; C10M2207/32; C10M2207/34; C10M2209/00; C10M2209/02; C10M2209/04; C10M2209/06; C10M2209/062; C10M2209/08; C10M2209/084; C10M2209/086; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/11; C10M2209/111; C10M2211/00; C10M2211/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/06; C10M2215/064; C10M2215/065; C10M2215/08; C10M2215/082; C10M2215/086; C10M2215/12; 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; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2229/00; C10M2229/02; C10M2229/04; C10M2229/05; C10N; C10N2010/00; C10N2010/04; C10N2010/06; C10N2010/08; C10N2010/14; C10N2010/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Annuity Stage
Window Opens
Payment Deadline
Surcharge Period Until
Estimated Fee
Status
3.5 Years (Year 4) 1973-08-31
1974-03-02 1974-09-01
$2000.00
Window Closed / Lapsed
7.5 Years (Year 8) 1977-08-31
1978-03-02 1978-09-01
$3760.00
Window Closed / Lapsed
11.5 Years (Year 12) 1981-08-31
1982-03-02 1982-09-01
$7700.00
Window Closed / Lapsed