Process for continuous manufacture of pyrotechnic charges containing a silicone binder and compositions capable of being used by this process

Process for continuous manufacture, by kneading and extrusion, of pyrotechnic charges consisting essentially of a crosslinkable silicone binder, of an oxidizing filler including ammonium perchlorate and sodium nitrate, and of additives, the said constituents of the charge being introduced continuously into an extruder equipped with an extrusion head at an outlet, wherein the constituents of the said binder are introduced in uncrosslinked form and include at least:

• I) a silicone resin of molecular mass which is lower than 20,000 and capable of being crosslinked via hydrosilane groups,
• ii) a silicone gum of molecular mass which is higher than 100,000 and capable of being crosslinked via hydrositane groups,
• iii) a crosslinking agent which is a hydropolysiloxane,
• so as to permit the formation of a homogeneous dough which is shaped by extrusion at a temperature not exceeding 30.degree. in the form of rods of stable geometry, the said rods thus obtained being then cut to the length of the charge and crosslinked at a temperature which is higher than 30.degree. C.