US3660182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive compositions and method of preparation
Assignee: Ireco Inc
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Filing: 1969-08-15
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Granted: 1972-05-02
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Expires: 1989-08-15
Abstract
Abstract An explosive composition in slurry or semi-solid form and containing calcium nitrate is made up by reacting calcium oxide with formaldehyde, preferably in the form of paraformaldehyde, in the presence of ammonium nitrate. The water generated in the reaction serves as a vehicle for the slurry. A thickener of gum or preferably starch is added, and gassing agents may be incorporated to control or reduce composition density. The presence of ammonium nitrate prevents run-away reactions and the hexamethylene-tetramine which is produced in the reaction serves as a fuel tending to give oxygen balance to the composition.
Inventors
- 👤 Melvin A Cook
- 👤 Frederick K Balli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:32
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
10 words
Composition according to claim 1 wherein the formaldehyde is paraformaldehyde.
Claim 2
Dependent Claim
12 words
Composition according to claim 1 which contains a thickener or gelling agent.
Claim 3
Dependent Claim
14 words
Composition according to claim 3 wherein the thickener or gelling agent is potato starch.
Claim 4
Dependent Claim
15 words
Composition according to claim 1 which includes an aeration agent to reduce its density significantly.
Claim 5
Dependent Claim
12 words
Composition according to claim 5 wherein the aeration agent is hydrogen peroxide.
Claim 6
Dependent Claim
22 words
Composition according to claim 1 which contains a density reducing agent and which has a final density between 1.15 and 1.4 g/cc.
Claim 7
Dependent Claim
78 words
The process of preparing an explosive composition which comprises the steps of exothermically reacting solid particulate calcium oxide with a formaldehyde in the present of solid particulate ammonium nitrate to control temperature rise of said reaction, thereby generating (1) a liquid which dissolves endothermically some of said ammonium nitrate, (2) a fuel and (3) calcium nitrate, and forming a slurry having a substantially continuous liquid phase which includes said generated liquid and having undissolved particulate solids dissolved therein.
Claim 8
Dependent Claim
11 words
Process according to claim 8 wherein an aerating agent is added.
Claim 9
Dependent Claim
13 words
Process according to claim 8 wherein a thickener or gel-forming agent is added.
Claim 10
Dependent Claim
20 words
Process according to claim 8 wherein a combination of dry ingredients, including a gelling agent, is added to the slurry.
Claim 11
Dependent Claim
14 words
Process according to claim 11 wherein an aerating agent is included in the composition.
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) | 1975-05-02 | 1975-11-01 | 1976-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-02 | 1979-11-01 | 1980-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-02 | 1983-11-01 | 1984-05-02 | $7700.00 | Window Closed / Lapsed |