US4209302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marker for petroleum fuels
Assignee: ATK Launch Systems LLC
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Filing: 1979-05-10
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Granted: 1980-06-24
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Expires: 1999-05-10
Abstract
Abstract New markers for petroleum fuels; a method of marking said fuels with a marker and of subsequently detecting the presence of said marker; and marked fuels are provided. The markers include the following compounds: ##STR1## 1-(4-morpholino)-3-(alpha naphthylamino)-propane, ##STR2## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR3## where R 1 and R 2 may be hydrogen or alkyl having from one to twenty carbon atoms. The marker is detected in said marked fuel by (1) extraction with an acidic aqueous solution and (2) admixture with a stabilized solution of diazotized 2-chlor-4-nitroaniline to yield a color characteristic of the marker.
Inventors
- 👤 Richard B. Orelup
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:52
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/003; C07; C07D; C07D295/00; C07D295/04; C07D295/12; C07D295/125; C07D295/13; C10L1/10; C10L1/14; C10L1/22; C10L1/222; C10L1/223; C10L1/232; C10L1/233; C10L1/2335; Y; Y10; Y10T; Y10T436/00; Y10T436/13; Y10T436/14; Y10T436/142222
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
40 words
A marker for petroleum fuels, said marker being selected from the group consisting of: ##STR7## 1-(4-morpholino)-3-(alpha naphthaylamino)-propane, ##STR8## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR9## where R 1 and R 2 may each be hydrogen or alkyl having from one to twenty carbon atoms.
Claim 2
Dependent Claim
40 words
A marker for petroleum fuels, said marker being selected from the group consisting of: ##STR7## 1-(4-morpholino)-3-(alpha naphthaylamino)-propane, ##STR8## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR9## where R 1 and R 2 may each be hydrogen or alkyl having from one to twenty carbon atoms.
Claim 3
Dependent Claim
17 words
The marker for petroleum fuels of claim 1 wherein the marker is the compound ##STR10## 1-(4-morpholino)-3-(alpha naphthylamino)-propane.
Claim 4
Dependent Claim
17 words
The marker for petroleum fuels of claim 1 wherein the marker is the compound ##STR11## 1-(4-morpholino)-3-(beta naphthylamino)-propane.
Claim 5
Dependent Claim
17 words
The marker for petroleum fuels of claim 1 wherein the marker is the compound ##STR12## 1-dimethylamino-3-(alpha naphthylamino)-propane.
Claim 6
Dependent Claim
17 words
The marker for petroluem fuels of claim 1 wherein the marker is the compound ##STR13## 1-diethylamino-3-(beta naphthylamino)-propane.
Claim 7
Dependent Claim
17 words
The marker for petroleum fuels of claim 1 wherein the marker is the compound ##STR14## 1-diethylamino-3-(alpha naphthylamino)-propane.
Claim 8
Dependent Claim
17 words
The marker for petroleum fuels of claim 1 wherein the marker is the compound ##STR15## 1-diethylamino-3-(beta naphthylamino)-propane.
Claim 9
Independent Claim
59 words
A method of marking a petroleum fuel with a marker, said method comprising dissolving in said fuel at least about 0.5 part per million of a marker selected from the group consisting of: ##STR16## 1-(4-morpholino)-3-(alpha naphthylamino)-propane, ##STR17## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR18## where R 1 and R 2 may each be hydrogen or alkyl having from one to twenty carbon atoms.
Claim 10
Independent Claim
59 words
A method of marking a petroleum fuel with a marker, said method comprising dissolving in said fuel at least about 0.5 part per million of a marker selected from the group consisting of: ##STR16## 1-(4-morpholino)-3-(alpha naphthylamino)-propane, ##STR17## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR18## where R 1 and R 2 may each be hydrogen or alkyl having from one to twenty carbon atoms.
Claim 11
Dependent Claim
11 words
The method of claim 8 wherein the marker is 1-(4-morpholino)-3-(alpha naphthylamino)-propane.
Claim 12
Dependent Claim
11 words
The method of claim 8 wherein the marker is 1(4-morpholino)-3-(beta naphthylamino)-propane.
Claim 13
Dependent Claim
11 words
The method of claim 8 wherein the marker is 1-dimethylamino-3-(alpha naphthylamino)-propane.
Claim 14
Dependent Claim
11 words
The method of claim 8 wherein the marker is 1-dimethylamino-3-(beta naphthylamino)-propane.
Claim 15
Dependent Claim
11 words
The method of claim 8 wherein the marker is 1-diethylamino-3-(alpha naphthylamino)-propane.
Claim 16
Dependent Claim
11 words
The method of claim 8 wherein the marker is 1-diethylamino-3-(beta naphthylamino)-propane.
Claim 17
Dependent Claim
34 words
The method of claim 8 wherein the marker is a compound having the formula ##STR19## where R 1 and R 2 may each be hydrogen or alkyl having from 8 to 18 carbon atoms.
Claim 18
Independent Claim
90 words
A method of detecting the presence in a petroleum fuel of at least about 0.5 part per million of a marker selected from the group consisting of ##STR20## 1-(4-morpholino)-3-(alpha naphthylamino)-propane, ##STR21## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR22## where R 1 and R 2 may each be hydrogen or alkyl having from one to twenty carbon atoms, said method comprising (I) extracting said marker from said marked fuel with an aqueous acidic extractant and (II) admixing with the aqueous acidic extract so obtained a solution of diazotized 2-chlor-4-nitroaniline whereupon a characteristic coloration is obtained.
Claim 19
Independent Claim
90 words
A method of detecting the presence in a petroleum fuel of at least about 0.5 part per million of a marker selected from the group consisting of ##STR20## 1-(4-morpholino)-3-(alpha naphthylamino)-propane, ##STR21## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR22## where R 1 and R 2 may each be hydrogen or alkyl having from one to twenty carbon atoms, said method comprising (I) extracting said marker from said marked fuel with an aqueous acidic extractant and (II) admixing with the aqueous acidic extract so obtained a solution of diazotized 2-chlor-4-nitroaniline whereupon a characteristic coloration is obtained.
Claim 20
Dependent Claim
11 words
The method of claim 16 wherein the marker is 1-(4-morpholino)-3-(alpha naphthylamino)-propane.
Claim 21
Dependent Claim
11 words
The method of claim 16 wherein the marker is 1-(4-morpholino)-3-(beta naphthylamino)-propane.
Claim 22
Dependent Claim
11 words
The method of claim 16 wherein the marker is 1-dimethylamino-3-(alpha naphthylamino)-propane.
Claim 23
Dependent Claim
11 words
The method of claim 16 wherein the marker is 1-dimethylamino-3-(beta naphthylamino)-propane.
Claim 24
Dependent Claim
11 words
The method of claim 16 wherein the marker is 1-diethylamino-3-(alpha naphthylamino)-propane.
Claim 25
Dependent Claim
11 words
The method of claim 16 wherein the marker is 1-diethylamino-3-(beta naphthylamino)-propane.
Claim 26
Dependent Claim
34 words
The method of claim 16 wherein the marker is a compound having the formula ##STR23## wherein R 1 and R 2 may each be hydrogen or alkyl having from 1 to 20 carbon atoms.
Claim 27
Dependent Claim
48 words
A marked petroleum fuel having dissolved therein at least 0.5 part per million of a marker selected from the group consisting of ##STR24## 1-(4-morpholino)-3-(alpha naphthylamino)-propane, ##STR25## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR26## where R 1 and R 2 may each be hydrogen or alkyl having from one to twenty carbon atoms.
Claim 28
Dependent Claim
48 words
A marked petroleum fuel having dissolved therein at least 0.5 part per million of a marker selected from the group consisting of ##STR24## 1-(4-morpholino)-3-(alpha naphthylamino)-propane, ##STR25## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR26## where R 1 and R 2 may each be hydrogen or alkyl having from one to twenty carbon atoms.
Claim 29
Dependent Claim
13 words
The marked petroleum fuel of claim 24 wherein the marker is 1-(4-morpholino)-3-(alpha naphthylamino)-propane.
Claim 30
Dependent Claim
13 words
The marked petroleum fuel of claim 24 wherein the marker is 1-(4-morpholino)-3-(beta naphthylamino)-propane.
Claim 31
Dependent Claim
13 words
The marked petroleum fuel of claim 24 wherein the marker is 1-dimethylamino-3-(alpha naphthylamino)-propane.
Claim 32
Dependent Claim
13 words
The marked petroleum fuel of claim 24 wherein the marker is 1-dimethylamino-3-(beta naphthylamino)-propane.
Claim 33
Dependent Claim
13 words
The marked petroleum fuel of claim 24 wherein the marker is 1-dimethylamino-3-(alpha naphthylamino)-propane.
Claim 34
Dependent Claim
13 words
The marked petroleum fuel of claim 24 wherein the marker is 1-diethylamino-3-(beta naphthylamino)-propane.
Claim 35
Dependent Claim
36 words
The marked petroleum fuel of claim 24 wherein the marker is a compound having the formula ##STR27## where R 1 and R 2 may each be hydrogen or alkyl having from one to twenty carbon atoms.
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) | 1983-06-24 | 1983-12-24 | 1984-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-06-24 | 1987-12-24 | 1988-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-06-24 | 1991-12-24 | 1992-06-24 | $7700.00 | Window Closed / Lapsed |