Process for obtaining a charge of hexanitrohexaazaisowurtzitane crystals having a rounded morphology; charge and corresponding energetic material

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United States of America Patent

PATENT NO 9353456
APP PUB NO 20140073781A1
SERIAL NO

14110621

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Abstract

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The present invention provides a process for obtaining a charge of hexanitrohexaazaisowurtzitane crystals having rounded morphology. It also provides said charge, the energetic material comprising it, and a process for manufacturing said material. Said process for obtaining said charge comprises:

    preparing a saturated solution of any polymorphic form of hexanitrohexaazaisowurtzitane in a mixture comprising both an organic solvent for said hexanitrohexaazaisowurtzitane and an organic nonsolvent for said hexanitrohexaazaisowurtzitane, said solvent being more volatile than said nonsolvent;seeding this saturated solution with a few hexanitrohexaazaisowurtzitane crystals; and thenconcentrating the seeded, saturated solution by at least partial evaporation of the solvent, said evaporation of the solvent being performed at a temperature of between 35° C. and 15° C. and at a pressure adjusted, to plus or minus 12 mbar, to the boiling pressure of the solvent in said solution, throughout the process of evaporating said solvent from said solution.

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Patent Owner(s)

  • EURENCO;HERAKLES

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lescop, Philippe Vert le Petit, FR 2 2
Muscatelli, Florent La Ferte Alais, FR 3 4

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