Explosive compositions
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United States of America Patent
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Issued Date -
Nov 2, 2006
app pub date -
Feb 1, 2005
filing date -
Feb 1, 2005
priority date (Note) -
Abandoned
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Abstract
A pumpable watergel explosive composition comprises 10 to 40 wt %, based on the total weight of the pumpable explosive composition, of a continuous liquid phase comprising a solvent, a solubilized chemical sensitizer and a gelling agent and 60 to 90 wt %, based on the total weight of the pumpable explosive composition, of a discontinuous solid phase comprising particulate oxidizer salt particles having interstitial spaces between the salt particles. The watergel explosive composition has a density of 1.05-1.4 g/cc and, a shear thinning rheology such that, when subjected to an external force, the explosive composition has a viscosity sufficiently low to render the watergel explosive composition pumpable. The combination of density and low water content provides energy numbers normally associated with more expensive aluminized formulations.
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