US4303414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azido additives for liquid hydrocarbon motor fuels
Assignee: Boeing North American Inc
•
Filing: 1980-12-15
•
Granted: 1981-12-01
•
Expires: 2000-12-15
Abstract
Abstract This invention relates to liquid hydrocarbon motor fuels improved by the addition of an azido compound. Specifically, the azido compounds of the present invention have the following general formulas N 3 --R 2 , N 3 --R 2 --N 3 , N 3 --R 3 --O--R 4 --N 3 , N 3 --R 3 --CO 2 --R 4 --N 3 , ##STR1## wherein R is an alkyl, alkyl hydroxy, primary alkyl ether, and alkyl ester and mixtures thereof; R 2 is an alkyl or alkyl hydroxy, R 3 and R 4 are the same or different and comprise lower alkyl radicals and mixtures thereof; x is an integer from 1 to 5' y is an integer from 3 to about 20; and z is an integer from 3 to 20.
Inventors
- 👤 Milton B. Frankel
- 👤 Joseph E. Flanagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:35
CPC Classifications
C; C07; C07C; C07C247/00; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/226
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
40 words
A liquid hydrocarbon motor fuel comprising a minor portion of an azido compound of the general N 3 R 1 , wherein R 1 represents a radical selected from the group consisting of nitro alkyls, nitrado alkyls, and mixtures thereof.
Claim 2
Dependent Claim
40 words
A liquid hydrocarbon motor fuel comprising a minor portion of an azido compound of the general N 3 R 1 , wherein R 1 represents a radical selected from the group consisting of nitro alkyls, nitrado alkyls, and mixtures thereof.
Claim 3
Dependent Claim
35 words
A liquid hydrocarbon motor fuel comprising a minor proportion of glycidyl azide of the formula ##STR12## or its polymer of the general formula ##STR13## wherein y is an integer between about 3 and about 20.
Claim 4
Dependent Claim
35 words
A liquid hydrocarbon motor fuel comprising a minor proportion of glycidyl azide of the formula ##STR12## or its polymer of the general formula ##STR13## wherein y is an integer between about 3 and about 20.
Claim 5
Dependent Claim
19 words
The liquid hydrocarbon motor fuel of claim 2 wherein y is an integer from about 5 to about 10.
Claim 6
Dependent Claim
48 words
A liquid hydrocarbon motor fuel comprising a minor proportion of an azido substituted cyclic polymethylene oxide of the general formula ##STR14## or its polymer of the general formula ##STR15## wherein x is an integer from 1 to 5 and wherein z is an integer from 3 to 20.
Claim 7
Dependent Claim
48 words
A liquid hydrocarbon motor fuel comprising a minor proportion of an azido substituted cyclic polymethylene oxide of the general formula ##STR14## or its polymer of the general formula ##STR15## wherein x is an integer from 1 to 5 and wherein z is an integer from 3 to 20.
Claim 8
Dependent Claim
19 words
The liquid hydrocarbon motor fuel of claim 4 wherein z is an integer from about 5 to about 10.
References Cited (Backward Citations)
US2115275A
Cited
US3520665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |