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US4295860A
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Multifunctional gasoline additives
Assignee: Honeywell UOP LLC
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Filing: 1980-06-23
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Granted: 1981-10-20
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Expires: 2000-06-23
Abstract
Abstract The reaction products of glycidyl ethers, wherein the alkoxy portion contains from about 6 to about 20 carbon atoms, with alkylenediamines, N-alkyl alkylenediamines, and N-alkoxyalkyl alkylenediamines are effective carburetor detergents and reducedeposits on various components of internal combustion engines. An example is the reaction product of the glycidyl ether whose alkoxy group is a mixture of 12-14 carbon atom chains with N-tallow-1,3-propylenediamine.
Inventors
- 👤 Michael E. Childs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:38
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/2222; C10L1/2225
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
A composition comprising a major amount of a fuel oil and an additive consisting of from about 10 ppm up to 100 ppm of the reaction product of: (a) a glycidyl ether presented by the formula: ##STR7## wherein R is either (i) a saturated hydrocarbyl group possessing from about 6 to about 20 carbon atoms or ##STR8## wherein R 1 and R 2 are saturated hydrocarbyl radicals containing from 1 to 17 carbon atoms and wherein the sum of R 1 and R 2 is from about 4 to about 18 carbon atoms with (b) an N-monosubstituted alkylenediamine having from 2 to about 8 carbon atoms in the alkylene moiety.
Claim 2
Dependent Claim
110 words
A composition comprising a major amount of a fuel oil and an additive consisting of from about 10 ppm up to 100 ppm of the reaction product of: (a) a glycidyl ether presented by the formula: ##STR7## wherein R is either (i) a saturated hydrocarbyl group possessing from about 6 to about 20 carbon atoms or ##STR8## wherein R 1 and R 2 are saturated hydrocarbyl radicals containing from 1 to 17 carbon atoms and wherein the sum of R 1 and R 2 is from about 4 to about 18 carbon atoms with (b) an N-monosubstituted alkylenediamine having from 2 to about 8 carbon atoms in the alkylene moiety.
Claim 3
Dependent Claim
11 words
The composition of claim 1 wherein the fuel oil is gasoline.
Claim 4
Dependent Claim
18 words
The composition of claim 1 wherein the alkylenediamine is selected from the group consisting of ethylenediamine and propylenediamine.
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) | 1984-10-19 | 1985-04-20 | 1985-10-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-19 | 1989-04-20 | 1989-10-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-19 | 1993-04-20 | 1993-10-20 | $7700.00 | Window Closed / Lapsed |