EXPLOSIVE COMPOSITION SUITABLE FOR CARTRIDGING IN PAPER AND ITS METHOD OF MANUFACTURE

• Main Authors: BEITIA GOMEZ DE SEGURA, FERNANDO, ZIMMERMANN, L.M, ANDRIO ZABALA, JUAN ANTONIO, GONZALES OCEJO, AGUSTIN, HALL, M.V.M
• Format: Patent
• Language: English
• Published: 09.07.1999
• Edition: 7
• Subjects: CHEMISTRY; EXPLOSIVES; EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; MATCHES; METALLURGY; USE OF SINGLE SUBSTANCES AS EXPLOSIVES

The composition is of watergel type containing oxidiser salts, sensitisers, thickeners, crosslinking agents, fuels and water. The sensitiser includes more than 50% by weight of one or more water soluble compounds of oxygen balance more positive than -150% selected from salts of nitric, chloric and perchloric acid with acylic nitrogen bases, having no more than two hydrogen atoms bonded to the or each basic nitrogen atom and up to three carbon atoms per basic nitrogen atom, and the salts of nitric, chloric, and perchloric acid with a phenyl amine, and the water content is less than 10% by weight, of the composition. The process comprises (a) to mix (i) a thickened aqueous phase containing an aqueous solution of water soluble sensitisers, thickeners and optionally a portion of the oxidiser salt, with (ii) a dry phase containing oxidiser salts along with the remaining additives and (b) to reduce the density of the mixture. The compositions are capable of initiation by a number 6 strength detonator in small diameter at low temperatures and they have a rheology allowing them to be cartridged in paper cartridges.