PYROTECHNIC COMPOSITION DETONATING UNDER ACTION OF SHOCK-WAVE LOADINGS Russian patent published in 1998 - IPC

FIELD: blasting operations. SUBSTANCE: invention relates to pyrotechnic compositions to provide detonation with no use of explosives and using laser-emission sources. Composition of invention detonates under action of shock-wave loadings as well as from laser impulse with low energetic operation threshold showing low sensitivity to mechanical action and low critical detonation diameter to be employed in laser initiation systems and distinguished by elevated noise-immunity and safety. Main point of invention consists in that composition containing ammonium perchlorate (oxidant) and hypophosphites (fuel), namely: sodium, potassium, and ammonium hypophosphites, individually or as mixtures. Composition further contains fluoro-rubber, fluoroplastic, colloxylin, and phenol- formaldehyde resin. Composition is applicable in mining, oil- production, and other areas. EFFECT: increased safety. 2 tbl, 2 ex