US3907518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent motor fuel
Assignee: Rohm and Haas Co
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Filing: 1973-09-19
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Granted: 1975-09-23
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Expires: 1993-09-19
Abstract
Abstract Detergent motor fuel compositions are disclosed and claimed which are particularly useful in spark-ignition, internal combustion engines. The detergent compositions of the present invention contain certain additives which either substantially eliminate or maintain at a low level deposits which would otherwise form in the carburetor and in the intake valves and ports. Such carburetor and intake system deposits are to be avoided since they tend to restrict the flow of air through the carburetor especially at idle and at low speeds and/or cause improper valve closing and sluggish valve action. These conditions produce rough engine idling, stalling and can also result in excessive hydrocarbon and carbon monoxide exhaust emissions.
Inventors
- 👤 Warren H Machleder
- 👤 Robert R Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:13
CPC Classifications
C; C10; C10L; C10L10/00; C10L10/04; C10L1/00; C10L1/10; C10L1/14; C10L1/143; C10L10/06; C10L1/16; C10L1/1625; C10L1/1633; C10L1/1641; C10L1/18; C10L1/192; C10L1/198; C10L1/1985; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225; C10M; C10M2201/00; C10M2201/02; C10M2207/00; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/287; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/24; C10M2215/26; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/135; C10N2050/00; C10N2050/10; F; F02; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/027; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
33 words
A MULTI-FUNCTIONAL ADDITIVE COMPOSITION SUITABLE FOR ADDITION TO DISTILLATE HYDROCARBON FUELS HAVING A MAJOR PROPORTIONS OF A HYDROCARBON BASE FUEL DISTILLING WITHIN THE GASOLINE DISTILLATION RANGE THE ADITIVE COMPOSITIVE COMPRISING A MIXTURE OF
Claim 2
Dependent Claim
33 words
A MULTI-FUNCTIONAL ADDITIVE COMPOSITION SUITABLE FOR ADDITION TO DISTILLATE HYDROCARBON FUELS HAVING A MAJOR PROPORTIONS OF A HYDROCARBON BASE FUEL DISTILLING WITHIN THE GASOLINE DISTILLATION RANGE THE ADITIVE COMPOSITIVE COMPRISING A MIXTURE OF
Claim 3
Dependent Claim
36 words
ABOUT 20 TO 250 PARTS BY WEIGHT OF A TERTIARY ALKYL PRIMARY AMINE HAVING A BRANCHED BACKBONE AND WHEREIN BACKBONE TERTIARY ALKYL PRIMARY AMINE HAS A TOTAL CARBON ATOM CONTENT OF 18 TO 22 CARBON ATOMS,
Claim 4
Dependent Claim
36 words
ABOUT 20 TO 250 PARTS BY WEIGHT OF A TERTIARY ALKYL PRIMARY AMINE HAVING A BRANCHED BACKBONE AND WHEREIN BACKBONE TERTIARY ALKYL PRIMARY AMINE HAS A TOTAL CARBON ATOM CONTENT OF 18 TO 22 CARBON ATOMS,
Claim 5
Dependent Claim
24 words
ABOUT 10 TO 100 PARTS BY WEIGHT OF A SURFACE ACTIVE ALKYL AMMONIUM CARBOXYLATE SALT-ETHOXYLATED ALKYL PHENOL ESTER OF A TRIMER OR DIMER ACID,
Claim 6
Dependent Claim
24 words
ABOUT 10 TO 100 PARTS BY WEIGHT OF A SURFACE ACTIVE ALKYL AMMONIUM CARBOXYLATE SALT-ETHOXYLATED ALKYL PHENOL ESTER OF A TRIMER OR DIMER ACID,
Claim 7
Dependent Claim
24 words
about 10 to 100 parts by weight of a surface active alkyl ammonium carboxylate salt-ethoxylated alkyl phenol ester of a trimer or dimer acid;
Claim 8
Dependent Claim
24 words
about 10 to 100 parts by weight of a surface active alkyl ammonium carboxylate salt-ethoxylated alkyl phenol ester of a trimer or dimer acid;
Claim 9
Dependent Claim
13 words
A detergent additive composition suitable for addition to gasoline comprising a mixture of
Claim 10
Dependent Claim
13 words
A detergent additive composition suitable for addition to gasoline comprising a mixture of
Claim 11
Dependent Claim
28 words
about 10 to about 100 parts by weight of a surface active alkyl ammonium carboxylate salt-ethoxylated alkyl phenol ester of a trimer or dimer acid of the formula
Claim 12
Dependent Claim
28 words
about 10 to about 100 parts by weight of a surface active alkyl ammonium carboxylate salt-ethoxylated alkyl phenol ester of a trimer or dimer acid of the formula
Claim 13
Dependent Claim
25 words
about 150 to 650 parts by weight of a hydrocarbonsoluble polybutene having a number average molecular weight (Mn) of from about 700 to about 3000.
Claim 14
Dependent Claim
25 words
about 150 to 650 parts by weight of a hydrocarbonsoluble polybutene having a number average molecular weight (Mn) of from about 700 to about 3000.
Claim 15
Dependent Claim
25 words
ABOUT 150 TO 60 PARTS OBY WEIGHT OF A HYDROCARBONSOLUBLE POLYBUTENE HVING A NUMBER AVERAGE MOLECULAR WEIGHT (MN) OF FROM ABOUT 700 TO ABOUT 3000.
Claim 16
Dependent Claim
25 words
ABOUT 150 TO 60 PARTS OBY WEIGHT OF A HYDROCARBONSOLUBLE POLYBUTENE HVING A NUMBER AVERAGE MOLECULAR WEIGHT (MN) OF FROM ABOUT 700 TO ABOUT 3000.
Claim 17
Dependent Claim
85 words
An improved detergent motor fuel composition comprising (A) a major proportion of a hydrocarbon base fuel boiling in the gasoline boiling or distillation range and (B) about 180 to 1000 ppm of the additive composition comprising (1) about 20 to about 250 parts by weight of a tertiary alkyl primary amine having a total carbon atom content of 12 to 14 carbon atoms, and (2) about 10 to about 100 parts by weight of a surface active alkyl ammonium carboxylate salt ester of the formula
Claim 18
Dependent Claim
85 words
An improved detergent motor fuel composition comprising (A) a major proportion of a hydrocarbon base fuel boiling in the gasoline boiling or distillation range and (B) about 180 to 1000 ppm of the additive composition comprising (1) about 20 to about 250 parts by weight of a tertiary alkyl primary amine having a total carbon atom content of 12 to 14 carbon atoms, and (2) about 10 to about 100 parts by weight of a surface active alkyl ammonium carboxylate salt ester of the formula
Claim 19
Dependent Claim
85 words
An improved detergent motor fuel composition comprising (A) a major proportion of a hydrocarbon base fuel boiling in the gasoline boiling or distillation range and (B) about 30 to 350 ppm of the additive composition comprising (1) about 20 to about 250 parts by weight of a tertiary alkyl primary amine having a total carbon atom content of 12 to 14 carbon atoms, and (2) about 10 to about 100 parts by weight of a surface active alkyl ammonium carboxylate salt ester of the formula
Claim 20
Dependent Claim
85 words
An improved detergent motor fuel composition comprising (A) a major proportion of a hydrocarbon base fuel boiling in the gasoline boiling or distillation range and (B) about 30 to 350 ppm of the additive composition comprising (1) about 20 to about 250 parts by weight of a tertiary alkyl primary amine having a total carbon atom content of 12 to 14 carbon atoms, and (2) about 10 to about 100 parts by weight of a surface active alkyl ammonium carboxylate salt ester of the formula
References Cited (Backward Citations)
US2049062A
Cited
US2758086A
Cited
US2718503A
Cited
US2830021A
Cited
US3231348A
Cited
US3399982A
Cited
US3438757A
Cited
US3574574A
Cited
US3782912A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |