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US3787254A
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Explosive compositions containing calcium nitrate
Assignee: Ireco Inc
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Filing: 1971-06-01
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Granted: 1974-01-22
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Expires: 1991-06-01
Abstract
Abstract Water-containing explosive compositions, substantially stable against gravitational segregation of the ingredients and degasification, comprise a homogenous emulsion-like dispersion of (1) inorganic nitrate oxidizer, e.g., ammonium nitrate, (2) finely dispersed particles of liquid hydrocarbon fuel, e.g., fuel oil, (3) calcium nitrate and (4) an agent to sufficiently thicken said composition to substantially inhibit such gravitational segregation during formulation and/or use and improve the water resistance of the composition.
Inventors
- 👤 M Cook
- 👤 L Udy
- 👤 M Hagmann
- 👤 H Jessop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:19
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
15 words
A composition as defined by claim 1 wherein said inorganic nitrate oxidizer is ammonium nitrate.
Claim 2
Dependent Claim
18 words
A composition as defined by claim 1 wherein said inorganic nitrate oxidizer comprises ammonium nitrate and sodium nitrate.
Claim 3
Dependent Claim
16 words
A composition as defined by claim 1 wherein said liquid hydrocarbon fuel comprises an aromatic hydrocarbon.
Claim 4
Dependent Claim
16 words
A composition as defined by claim 1 wherein said liquid hydrocarbon fuel comprises a petroleum distillate.
Claim 5
Dependent Claim
17 words
A composition as defined by claim 1 wherein said liquid hydrocarbon fuel comprises No. 2 fuel oil.
Claim 6
Dependent Claim
19 words
A composition as defined by claim 1 wherein the composition contains a minor amount of a cross-linkable thickening agent.
Claim 7
Dependent Claim
18 words
A composition as defined by claim 7 wherein the composition contains a minor amount of a cross-linking agent.
Claim 8
Dependent Claim
22 words
A composition as defined by claim 8 wherein said cross-linking agent comprises about equal parts of water, sodium dichromate, and ferric nitrate.
Claim 9
Dependent Claim
23 words
A composition as defined by claim 1 wherein the composition is gasified by use of a minor amount of sodium nitrite gassing agent.
Claim 10
Dependent Claim
19 words
A composition as defined by claim 1 wherein the composition contains a minor amount of a cross-linkable guar gum.
Claim 11
Dependent Claim
21 words
A composition as defined by claim 1 wherein the compositions contains about 5 percent to about 60 percent solid hydrated CN.
Claim 12
Dependent Claim
24 words
A composition as defined by claim 1 wherein said added water is present in an amount of about 1 percent to about 10 percent.
Claim 13
Dependent Claim
24 words
A composition as defined by claim 1 wherein said added water is present in an amount of about 3 percent to about 6 percent.
Claim 14
Dependent Claim
15 words
A composition as defined by claim 1 wherein said hydrated calcium nitrate is fertilizer grade.
Claim 15
Dependent Claim
85 words
A substantially oxygen balanced explosive composition having a bulk density of about 1.0 gm/cc to about 1.3 gms/cc consisting essentially of about 20 percent to about 30 percent calcium nitrate; at least about 3 percent total water; about 60 percent to about 70 percent ammonium nitrate; about 3 percent to about 5 percent sodium nitrate; about 6 percent to about 12 percent of a normally liquid, water-immiscible hydrocarbon fuel in emulsion-like form and at least about 0.1 percent of a cross-linkable guar gum thickening agent.
Claim 16
Dependent Claim
22 words
A composition as defined by claim 16 which is further characterized as having a solid, cast-like consistency at the time of use.
Claim 17
Dependent Claim
21 words
A composition as defined by claim 16 which is further characterized as having a plastic consistency at the time of use.
Claim 18
Dependent Claim
29 words
A composition as defined by claim 16 which is further characterized as having a pourable fluid-like consistency at the time of placing in the container or location of use.
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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) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |