Patent US4221616A successfully refreshed from Google Patents.
US4221616A
Expired / Lapsed
US
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Hydrophobic explosive composition and method of making
Assignee: Orica Ltd
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Filing: 1979-01-15
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Granted: 1980-09-09
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Expires: 1999-01-15
Abstract
Abstract A slurry explosive composition comprising at least one inorganic oxidizing salt, an aqueous liquid phase, fuel material and a sensitizing agent which agent comprises a combination of hydrophobic particles of high explosive material and gas bubbles.
Inventors
- 👤 Colin D. McLean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:43
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/111
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
53 words
A slurry explosive composition comprising at least one inorganic oxidising salt, a liquid phase, and fuel material wherein said slurry explosive composition comprises, as a sensitising agent, (i) hydrophobic particles of a high explosive material which are capable of passing through a screen of 120 B.S. mesh and (ii) bubbles of gaseous material.
Claim 2
Dependent Claim
53 words
A slurry explosive composition comprising at least one inorganic oxidising salt, a liquid phase, and fuel material wherein said slurry explosive composition comprises, as a sensitising agent, (i) hydrophobic particles of a high explosive material which are capable of passing through a screen of 120 B.S. mesh and (ii) bubbles of gaseous material.
Claim 3
Dependent Claim
15 words
A composition according to claim 1 wherein said slurry explosive composition comprises a thickening agent.
Claim 4
Dependent Claim
13 words
A composition according to claim 2 wherein said thickening agent has been crosslinked.
Claim 5
Dependent Claim
31 words
A composition according to claim 1 wherein said high explosive material comprises at least one compound selected from the group consisting of trinitrotoluene, dinitrotoluene, pentaerythritol tetranitrate, pentolite, cyclonite, cyclotol and tetryl.
Claim 6
Dependent Claim
13 words
A composition according to claim 4 wherein said high explosive material is trinitrotoluene.
Claim 7
Dependent Claim
21 words
A composition according to claim 1 wherein said high explosive material has been treated with a compound to render it hydrophobic.
Claim 8
Dependent Claim
20 words
A composition according to claim 6 wherein the said compound used to render the high explosive material hydrophobic is di-iso-octylphthalate.
Claim 9
Dependent Claim
29 words
A composition according to claim 1 wherein said high explosive material comprises an amount in the range of 0.1% to 10% w/w inclusive of the said slurry explosive composition.
Claim 10
Dependent Claim
29 words
A composition according to claim 8 wherein said high explosive material comprises an amount in the range of 1% to 5% w/w inclusive of the said slurry explosive composition.
Claim 11
Dependent Claim
28 words
A composition according to claim 1 wherein said gaseous material comprises at least one gas selected from the group consisting of air, oxygen, nitrogen and oxides of nitrogen.
Claim 12
Dependent Claim
63 words
A process for the preparation of a slurry explosive compositions as defined in claim 1 in which hydrophobic particles of a high explosive material which are capable of passing a screen of 120 B.S. mesh are mixed with the other solid and liquid components of the said slurry explosive composition and wherein bubbles of gaseous material are generated within said slurry explosive composition.
Claim 13
Dependent Claim
21 words
A process according to claim 11 wherein the bubbles of gaseous material are generated within said slurry explosive composition by agitation.
Claim 14
Dependent Claim
28 words
A process according to claim 11 wherein the bubbles of gaseous material are generated within said slurry explosive composition by injection a compressed gas into the said composition.
Claim 15
Dependent Claim
32 words
A process according to claim 11 wherein the bubbles of gaseous material are generated within said slurry explosive composition by the addition of a material which will decompose to form gaseous products.
References Cited (Backward Citations)
US3676234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-09 | 1984-03-10 | 1984-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-09 | 1988-03-10 | 1988-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-09 | 1992-03-10 | 1992-09-09 | $7700.00 | Window Closed / Lapsed |