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US4198253A
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Explosive compositions containing sulphonated guar gum derivatives
Assignee: Orica Explosives Technology Pty Ltd
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Filing: 1978-12-11
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Granted: 1980-04-15
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Expires: 1998-12-11
Abstract
Abstract A slurry explosive composition is provided which has improved water resistance and thermal stability and resists segregation. The composition consists of an inorganic oxygen-supplying salt, a liquid carrier or solvent for the salt, a solid or liquid fuel and, as a thickener a sulfonated guar gum derivative.
Inventors
- 👤 Jitka Kirchnerova
- 👤 Errol L. Falconer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:18
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
36 words
A slurry explosive composition comprising at least one inorganic oxygen-supplying salt, a solvent or carrier for the inorganic oxygen-supplying salt, a solid or liquid fuel and a thickener, said thickener comprising a sulfonated guar gum derivative.
Claim 2
Dependent Claim
36 words
A slurry explosive composition comprising at least one inorganic oxygen-supplying salt, a solvent or carrier for the inorganic oxygen-supplying salt, a solid or liquid fuel and a thickener, said thickener comprising a sulfonated guar gum derivative.
Claim 3
Dependent Claim
55 words
A slurry explosive composition comprising from 30% to 90% by weight of an inorganic oxygen-supplying salt, from 5% to 40% by weight of a liquid solvent, disperser or carrier, from 5% to 40% by weight of a fuel or fuel/sensitizer and from 0.1% to 2.0% by weight of a sulfonated guar gum derivative thickening agent.
Claim 4
Dependent Claim
55 words
A slurry explosive composition comprising from 30% to 90% by weight of an inorganic oxygen-supplying salt, from 5% to 40% by weight of a liquid solvent, disperser or carrier, from 5% to 40% by weight of a fuel or fuel/sensitizer and from 0.1% to 2.0% by weight of a sulfonated guar gum derivative thickening agent.
Claim 5
Dependent Claim
30 words
An explosive composition as claimed in claim 1 wherein the inorganic oxygen-supplying salt is selected from the group consisting of nitrates and ammonium, sodium, potassium and calcium and mixtures thereof.
Claim 6
Dependent Claim
41 words
An explosive composition as claimed in claim 2 wherein the fuel or fuel/sensitizer is selected from the group consisting of finely divided aluminum or aluminum alloy, silicon, finely divided carbonaceous material, oleaginous hydrocarbons, particulate insoluble self-explosives, soluble self-explosives and mixtures thereof.
Claim 7
Dependent Claim
15 words
An explosive composition as claimed in claim 1 wherein the solvent or carrier is water.
Claim 8
Dependent Claim
40 words
An explosive composition as claimed in claim 5 wherein up to half of the water is replaced by a polar liquid selected from the group consisting of formamide, dimethy sulfoxide, the lower glycols, the lower alcohols and mixtures of these.
References Cited (Backward Citations)
US3919015A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-04-15 | 1983-10-15 | 1984-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-04-15 | 1987-10-15 | 1988-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-04-15 | 1991-10-15 | 1992-04-15 | $7700.00 | Window Closed / Lapsed |