Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Mathias Helfrich

Dietmar Muller

Klaus Menke

Michael Mandt

Lothar Merz

In a process for the production of desensitized, high energy explosive, particularly hexogen (RDX), as a component of plastic-bound explosives or propellant powders, the particulate explosive with a grain size up to 20 .mu.m is suspended with a desensitizing polymer in aqueous dispersion, the slurries are applied to a rotary, heated roller, the applied material is dried at a temperature of &gt;100.degree. C. and is scraped from the roller after drying.

Process for the production of desensitized explosives

A binder composition for injection moulding or extrusion of metallic or cmic powders in sintering technology comprised 30 to 90% by weight PVA with an average molecular weight of 35,000 to 1,000,000 and 10 to 70% by weight PEG with an average molecular weight of 500 to 50,000 as the melt softener and processing plasticizer. The PEG can be wholly or partly replaced by prepolymeric, aliphatic polyesters of adipic acid and PEG with an average molecular weight of 2,000 to 20,000 or by hydroxy-terminated copolymers of ethylene and propylene oxide with the same average molecular weight.

Binder for metal or ceramic powder

A stabilized high energy explosive, e.g. hexogen (RDX), octogen (HMX) or the like, as a component of NC or plastic-bound propellant charge powders (Lova-TLP) or plastic-bound explosives (PBX) has a particle size up to 5 .mu.m and a stabilizer incorporated into the explosive particles. In order to produce such an explosive, it is proposed that the explosive in the dissolved form and with the stabilizer in the liquid phase is mixed with a proportion of up to approximately 6% and the mixture is brought by flash drying into the solid phase with a particle size of up to 5 .mu.m.

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Landau, Germany

Mathias Helfrich