Process for the preparation of an electropyrotechnic initiator by use of an aqueous adhesive
AssigneeLivbag SNC
InventorsJean-Rene Duguet, Jerome Pillaert
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Abstract
The present invention relates to a process for the preparation of an electropyrotechnic initiator (1) comprising a pyrotechnic varnish (6) initiated by a resistive heating element (11). The pyrotechnic varnish is obtained by deposition, on the resistive element, of an aqueous adhesive composed of a dispersion of an explosive substance and of additives in an aqueous suspension based on a copolymer and then by drying the said aqueous adhesive at a temperature of between 55° C. and 75° C. The copolymer is chosen from ethylene/vinyl acetate copolymers and vinyl acetate/ethylene acetate/ethylene copolymers.
Claims25
Process for the preparation of an electropyrotechnic initiator (1) comprising a pyrotechnic varnish (6) initiated by a resistive heating element (11), characterized in that the said pyrotechnic varnish is obtained by deposition, on the resistive element, of an aqueous adhesive composed of a dispersion of an explosive substance and of additives in an aqueous suspension based on a copolymer chosen from ethylene/vinyl acetate copolymers and vinyl acetate/ethylene acetate/ethylene copolymers and then by drying the said aqueous adhesive at a temperature of between 55° C. and 75° C.
Dependencies are inferred from the claim text.