Slurry explosive with high strength hollow spheres

Details Slurry explosive with high strength hollow spheres Slurry explosive with high strength hollow spheres

1983-07-11

1984-10-02

Lechert, Jr., Stephen J.

Explosive and thermic compositions or charges

Structure or arrangement of component or product

Particles of diverse size or shape

149 2, 149 46, 149 61, 149 76, 149 83, 149110, C06B 4502

Patent

active

044746288

ABSTRACT:
The present invention relates to improved explosives. More particularly, the invention relates to cap-sensitive slurry explosives, either water-in-oil emulsion explosives or conventional water-based slurries having a continuous aqueous phase, containing high strength, small, hollow, dispersed spheres as a density reducing agent. The preferred explosive is a cap-sensitive water-in-oil emulsion explosive having a water-immiscible liquid organic fuel as a continuous phase; an emulsified aqueous inorganic oxidizer salt solution as a discontinuous phase; an emulsifier; and as a density reducing agent, small, hollow, dispersed spheres, preferably glass or plastic, having a strength such that a maximum of about 10% collapse under a pressure of 500 psi. As used herein, the term "cap-sensitive" means that the explosive composition is detonable with a No. 8 cap at 20.degree. C. in a charge diameter of 32 mm or less.

REFERENCES:
patent: 4303731 (1981-12-01), Torobin

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