Patent US4421522A successfully refreshed from Google Patents.
US4421522A
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Diesel fuel composition
Assignee: Ethyl Corp
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Filing: 1982-10-06
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Granted: 1983-12-20
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Expires: 2002-10-06
Abstract
Abstract Cetane number of diesel fuel is increased by the addition of a 4-morpholine ethanol nitrate.
Inventors
- 👤 Paul D. Seemuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:11
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/42; C07D211/44; C07D211/46; C07D307/00; C07D307/02; C07D307/04; C07D307/18; C10; C10L; C10L1/00; C10L1/02; C10L1/026; C10L1/10; C10L1/14; C10L1/22; C10L1/23; C10L1/231; C10L1/232; C10L1/233; C10L1/2335; F; F02; F02B; F02B1/00; F02B1/02; F02B1/04; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
45 words
Liquid fuel adapted for use in a diesel engine, said fuel being selected from the group consisting of liquid hydrocarbons of the diesel boiling range, alcohols and mixtures thereof, and said fuel containing a cetane number increasing amount of a fuel soluble 4-morpholine alkanol nitrate.
Claim 2
Dependent Claim
45 words
Liquid fuel adapted for use in a diesel engine, said fuel being selected from the group consisting of liquid hydrocarbons of the diesel boiling range, alcohols and mixtures thereof, and said fuel containing a cetane number increasing amount of a fuel soluble 4-morpholine alkanol nitrate.
Claim 3
Dependent Claim
17 words
A composition of claim 1 wherein said fuel is a liquid hydrocarbon of the fuel boiling range.
Claim 4
Dependent Claim
64 words
A composition of claim 2 wherein said 4-morpholine alkanol nitrate has the structure ##STR4## wherein R is a divalent hydrocarbon group containing 1-20 carbon atoms, and R' and R" are independently selected from the group consisting of hydrogen, alkyls containing 1-20 carbon atoms, cycloalkyl containing 5-8 carbon atoms, alkenyl containing 2-20 carbon atoms, aryl containing 6-12 carbon atoms, and aralkyl containing 7-12 carbon atoms.
Claim 5
Dependent Claim
11 words
A composition of claim 3 wherein R' and R" are hydrogen.
Claim 6
Dependent Claim
15 words
A composition of claim 4 wherein R is the group --CH 2 CH 2 --.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |