US3718512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Porous particles containing dispersed organic liquid and gaseous components
Assignee: KINEPAK Inc
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Filing: 1970-10-08
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Granted: 1973-02-27
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Expires: 1990-10-08
Abstract
Abstract Economical and effective cap sensitive explosive compositions are manufactured by combining appropriate proportions of a noncap sensitive organic liquid containing oxidizing groups with a porous substrate. The preferred liquid is nitromethane or nitromethane diluted with a hydrocarbon. The preferred substrate is a finely divided ionic nitrate powder. The explosive compositions are rendered cap sensitive and highly brisant by providing a substrate which disperses the organic liquid while maintaining this fluid in intimate contact with dispersed air. The preferred finely divided ionic nitrate substrates used in the present invention are prepared by grinding to the desired particle size, preferably less than 500 microns.
Inventors
- 👤 G Hurst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:21
CPC Classifications
C; C06; C06B; C06B47/00; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/112; Y10S149/113
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
23 words
The explosive composition of claim 1 wherein the liquid component is selected from nitroaliphatic hydrocarbons, nitroaromatic hydrocarbons, aliphatic nitrates, N-nitrohydrocarbons and mixtures thereof.
Claim 2
Dependent Claim
20 words
The composition of claim 2 wherein said solid component has an average particle size of less than about 500 microns.
Claim 3
Dependent Claim
22 words
The composition of claim 3 wherein said solid component has an average particle size of from about 5 to about 250 microns.
Claim 4
Dependent Claim
23 words
The composition of claim 2 wherein said liquid component additionally comprises: a minor proportion of a hydrocarbon fuel admixed with said liquid component.
Claim 5
Dependent Claim
21 words
The composition of claim 2 wherein said gaseous component comprises at least about 5 percent by volume of said explosive composition.
Claim 6
Dependent Claim
24 words
The composition of claim 2 wherein said liquid component comprises from about 6 percent to about 60 percent by weight of the explosive composition.
Claim 7
Dependent Claim
24 words
The explosive of claim 7 wherein said liquid component comprises from about 12 percent to about 35 percent by weight of said explosive composition.
Claim 8
Dependent Claim
13 words
The explosive composition of claim 2 wherein said liquid component is a nitroalkane.
Claim 9
Dependent Claim
10 words
The composition of claim 9 wherein said nitroalkane is nitromethane.
Claim 10
Dependent Claim
13 words
The composition of claim 2 wherein said liquid component is a dinitrotoluene oil.
Claim 11
Dependent Claim
22 words
The composition of claim 5 wherein said liquid component is a nitroalkane admixed with a minor proportion of a soluble hydrocarbon fuel.
Claim 12
Dependent Claim
10 words
The composition of claim 12 wherein said nitroalkane is nitromethane.
Claim 13
Dependent Claim
13 words
The composition of claim 13 wherein said hydrocarbon fuel is an aromatic hydrocarbon.
Claim 14
Dependent Claim
22 words
The composition of claim 5 wherein said liquid component is a mixture of dinitrotoluene containing a minor proportion of a hydrocarbon fuel.
Claim 15
Dependent Claim
12 words
The mixture of claim 2 wherein said solid component is ammonium nitrate.
Claim 16
Dependent Claim
12 words
The composition of claim 2 wherein said solid component is sodium nitrate.
Claim 17
Dependent Claim
12 words
The compositIon of claim 2 wherein said solid component is potassium nitrate.
Claim 18
Dependent Claim
12 words
The composition of claim 2 wherein said solid component is sodium perchlorate.
Claim 19
Dependent Claim
12 words
The composition of claim 2 wherein said solid component is potassium perchlorate.
Claim 20
Dependent Claim
12 words
The composition of claim 2 wherein said solid component is ammonium perchlorate.
Claim 21
Dependent Claim
12 words
The composition of claim 2 wherein said solid component is diatomaceous earth.
Claim 22
Dependent Claim
12 words
The composition of claim 2 wherein said solid component is expanded silica.
Claim 23
Dependent Claim
29 words
The composition of claim 2 wherein said gaseous component is air present in an amount between about 5 percent and about 50 percent by volume of the total composition.
Claim 24
Dependent Claim
19 words
The composition of claim 1 wherein the bulk density of the solid component is less than about 1.4 g/cc.
Claim 25
Dependent Claim
19 words
The composition of claim 25 wherein the bulk density of the solid component is less than about 1.0 g/cc.
Claim 26
Dependent Claim
20 words
The explosive composition of claim 2 further comprising a booster charge located in proximity to a secondary non-cap sensitive explosive.
Claim 27
Dependent Claim
19 words
The explosive mixture of claim 27 wherein said secondary explosive comprises a mixture of ammonium nitrate and fuel oil.
Claim 28
Dependent Claim
12 words
The explosive composition of claim 27 wherein said secondary charge comprises nitromethane.
Claim 29
Dependent Claim
17 words
The composition of claim 27 wherein said explosive composition is in the form of a shaped charge.
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) | 1976-02-27 | 1976-08-28 | 1977-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-27 | 1980-08-28 | 1981-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-27 | 1984-08-28 | 1985-02-27 | $7700.00 | Window Closed / Lapsed |