Melt explosive composition

A melt explosive composition comprising an eutectic which melts at a temperature in the range from -10.degree. C. to +90.degree. C. and which comprises at least one oxygen-releasing salt, at least one melt soluble fuel material, at least one formaldehyde-naphthalenesulfonate derivative selected from the condensates of formaldehyde and naphthalenesulfonic acids, the condensates of formaldehyde and C.sub.1 to C.sub.10 -(alkyl)naphthalenesulfonic acids, and the alkali metal and alkaline earth metal salts thereof, a discontinuous gaseous phase comprising gas bubbles, a foam stabilizing surfactant to stabilize said gas bubbles, a thickening agent, and a crosslinking agent.

A melt explosive composition comprising:

• as a first component an eutectic which melts at a temperature in the range from -10.degree. C. to +90.degree. C. and which comprises at least one oxygen-releasing salt, at least one melt soluble fuel material, at least one formaldehyde-naphthalenesulfonate derivative selected from the condensates of formaldehyde and naphthalenesulfonic acids, the condensates of formaldehyde and C.sub.1 to C.sub.10 -(alkyl)naphthalenesulfonic acids, and the alkali metal and alkaline earth metal salts thereof, a discontinuous gaseous phase comprising gas bubbles, and a foam stabilizing surfactant to stabilize said gas bubbles, a thickening agent, and a crosslinking agent;
• and a second component which comprises a further amount of at least one oxygen-releasing salt.

A process for the manufacture of a melt explosive composition which comprises at least one oxygen releasing salt, at least one melt soluble fuel material and at least one naphthalenesulfonate derivative selected from condensates of formaldehyde and naphthalenesulfonic acids, condensates of formaldehyde and C.sub.1 to C.sub.10 -(alkyl)-naphthalenesulfonic acids and the alkali metal and alkaline earth metal salts thereof which process comprises forming a melt comprising the melt-soluble fuel, the naphthalenesulfonate derivative and at least a portion of the oxygen releasing salt at a temperature in the range of from -10.degree. C. to +90.degree. C. and incorporating into said melt any remaining portion of said oxygen releasing salt.