Pressed insensitive explosive mixture

Abstract

Insensitive explosive mixtures of octogen, hexogen crystals have a bimodal grain composition comprising coarse grain of 280-360 μm and fine grain of 15-45 μm and a binder system HYTEMP® and DOA using a conventional solvent. Explosive mixtures are obtained, which are of differing sensitivity and which in the GAP test attain the classification of little sensitivity in accordance with STANAG 4170.

1 . Pressed insensitive explosive mixtures in which explosive crystals are bound by a binder system, characterised in that a bimodal grain composition comprising coarse-grain and fine-grain explosive crystals is bound by a binder system comprising a plasticiser and HYTEMP®, and is produced in the solvent process.  
     
     
         2 . Explosive mixtures according to  claim 1  characterised in that the coarse grain has a mean grain size of 280-360 μm with an upper limit of 500-700 μm and the fine grain has a grain size of 15-45 μm.  
     
     
         3 . Explosive mixtures according to  claim 1  characterised in that the members of the following families can be used as the plasticiser: 
 * Acycl. dicarboxylic acid ester  
 DOA ester of adipic acid such as di-2-ethylhexyladipate  
 DIDA diisodecyladipate  
 * phthalates  
 DOP di-2-ethylhexylphthalate  
 DINP di-isononyl  
 DIDP diisodecylphthalate  
 * polymer plasticisers.  
 
     
     
         4 . Explosive mixtures according to  claim 1  characterised in that the solvent acetone for the binder system involves 3-10 times the mass of the binder system.  
     
     
         5 . Explosive mixtures according to  claim 1  characterised in that there is provided a solvent mixture comprising ethyl acetate, acetone and ethanol in the ratio of 20%/20%/60% or ethyl acetate and acetone in the ratio of 50%/50%.