Low density watergel explosive composition
AssigneeDyno Nobel Inc.
InventorsDon H. Cranney, Lawrence D. Lawrence, Michael M. Jackson
Life of this patent
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Abstract
The present invention comprises a watergel explosive composition, and method of manufacturing the same, that has a density of less than 0.8 g/cc. The composition has good water resistance and is especially useful in blasting applications calling for lower energy explosives.
Claims10
A low-density water-gel explosive composition consisting essentially of a continuous phase of aqueous inorganic oxidizer salt solution in which water is present in an amount of from about 10% to about 40% of the composition, ammonium nitrate particles in an amount of from about 10% to about 70% of the composition, a thickening agent, a crosslinking agent, fuel selected from the group consisting of water-miscible fuels, water-immiscible organic liquid fuels and mixtures thereof and a dispersion of chemically produced gas bubbles in an amount sufficient to reduce the density of the composition to less than 0.7 g/cc.
A low-density water-gel explosive composition consisting essentially of a continuous phase of aqueous inorganic oxidizer salt solution further consisting essentially of water in an amount of from about 10% to about 40% by weight of the composition and ammonium nitrate in an amount of from about 30% to about 90%, crosslinking agent in an amount of from about 0.001% to about 0.1%, guar gum in an amount of from about 0.2% to about 2%, fuel including water-immiscible organic liquid fuel in an amount of from 0% to about 6% and chemically produced gas bubbles dispersed throughout the composition in a volume sufficient to reduce the density of the composition to less than 0.7 g/cc.
Dependencies are inferred from the claim text.