US3844731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Motor fuel additive
Assignee: Texaco Inc
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Filing: 1973-06-14
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Granted: 1974-10-29
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Expires: 1993-06-14
Abstract
Abstract Diester-amide fuel additive prepared by esterifying a mole of trimer acid with two moles of an aliphatic alcohol having from 6 to 16 carbon atoms and amidating the intermediate diester reaction product with a mole of a dialkanolamine to produce a diester-amide, and a motor fuel composition containing same.
Inventors
- 👤 J Biasotti
- 👤 F Oberender
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:44
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/224
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
118 words
A MOTOR FUEL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MIXTURE OF HYDROCARBONS IN THE GASOLINE BOILING RANGE CINTAINING A MINOR DETERGENT AND RUST INHIBITING AMOUNT OF A DIESTER-AMIDE FUEL ADDITIVE PREPARED BY ESTERFYING A MOLE OF TRIMER ACID PRODUCED BY THE POLYMERIZATION OF AN UNSATURATED ALIPHATIC MONOCARBOXYLIC ACID HAVING BETWEEN 16 AND 22 CARBON ATOMS PER MOLECULE WITH 2 MOLES OF AN ALIPHATIC MONOHYDRIC ALCOHOL HAVING FROM ABOUT 6 TO 16 CARBON ATOMS TO PRODUCE AN INTERMEDIATE DIESTER REACTION PRODUCT AND AMIDATING A MOLE OF SAID INTERMEDIATE DIESTER REACTION PRODUCT WITH A MOLE OF DIALKANOLAMINE HAVING THE FORMULA HN-(R-OH)2 IN WHICH R IS AN ALKYLENE RADICAL HAVING FROM 2 TO 4 CARBON ATOMS TO PRODUCE SAID DIESTER-AMIDE.
Claim 2
Dependent Claim
118 words
A MOTOR FUEL COMPOSITION COMPRISING A MAJOR AMOUNT OF A MIXTURE OF HYDROCARBONS IN THE GASOLINE BOILING RANGE CINTAINING A MINOR DETERGENT AND RUST INHIBITING AMOUNT OF A DIESTER-AMIDE FUEL ADDITIVE PREPARED BY ESTERFYING A MOLE OF TRIMER ACID PRODUCED BY THE POLYMERIZATION OF AN UNSATURATED ALIPHATIC MONOCARBOXYLIC ACID HAVING BETWEEN 16 AND 22 CARBON ATOMS PER MOLECULE WITH 2 MOLES OF AN ALIPHATIC MONOHYDRIC ALCOHOL HAVING FROM ABOUT 6 TO 16 CARBON ATOMS TO PRODUCE AN INTERMEDIATE DIESTER REACTION PRODUCT AND AMIDATING A MOLE OF SAID INTERMEDIATE DIESTER REACTION PRODUCT WITH A MOLE OF DIALKANOLAMINE HAVING THE FORMULA HN-(R-OH)2 IN WHICH R IS AN ALKYLENE RADICAL HAVING FROM 2 TO 4 CARBON ATOMS TO PRODUCE SAID DIESTER-AMIDE.
Claim 3
Dependent Claim
18 words
A motor fuel composition according to claim 1 in which said unsaturated aliphatic monocarboxylic acid is linoleic acid.
Claim 4
Dependent Claim
21 words
A motor fuel composition according to claim 1 in which said aliphatic alcohol has from about 8 to 12 carbon atoms.
Claim 5
Dependent Claim
26 words
A motor fuel composition according to claim 1 in which said aliphatic alcohol has from about 8 to 12 carbon atoms and said dialkanolamine is diethanolamine.
Claim 6
Dependent Claim
26 words
A motor fuel composition according to claim 1 in which said aliphatic alcohol has from about 8 to 12 carbon atoms and said dialkanolamine is diisopropanolamine.
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) | 1977-10-28 | 1978-04-29 | 1978-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-28 | 1982-04-29 | 1982-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-28 | 1986-04-29 | 1986-10-29 | $7700.00 | Window Closed / Lapsed |