Molded explosive bodies having variable detonation speeds

• US 3,925,122 A
• Filed: 02/12/1970
• Issued: 12/09/1975
• Est. Priority Date: 09/13/1967
• Status: Expired due to Term

• Current Assignee: Adolf Berthmann, Gerhard Martin, Maximilian Klunsch
• Original Assignee: Adolf Berthmann, Gerhard Martin, Maximilian Klunsch
• Inventors: Berthmann, Adolf, Martin, Gerhard, Klunsch, Maximilian
• Primary Examiner(s): Sebastian, Leland A.
• Application Number:
  US05/014,876
• Time in Patent Office: 2,126 Days
• Field of Search: 149/2,18,19,20,21,46,60,88,92,93,105,19.6,19.91 264/3R
• US Class Current: 149/2
• CPC Class Codes: C06B 23/003 Porous or hollow inert particles preparation C06B21/0091
• CPC Class Codes: C06B 25/32 the compound being nitrated pentaerythritol

Abstract

Process of manufacturing molded explosive bodies so that their detonation speeds can be varied within a defined range by reducing the density of the molded body. The reduction in density can be effected by incorporating into the starting components, porous, voluminous or air containing materials. The solidification of the resulting compositions is thereafter carried out by incorporating into the above starting components a suitable binding agent, varying the working pressure in the forming of the bodies, or suitably regulating the sintering conditions. The resultant bodies are characterized by their reduced densities and therewith reduced detonation speeds and by their high mechanical strengths.

Claims

1. A HOMOGENOUS HIGH STRENGTH MOLDED EXPLOSIVE BODY COMPRISING A SOLIDIFIED MIXTURE OF SOLID PENTAERYTHRITE-TETRANITRATE EXPLOSIVE, HOLLOW SPHERES OF PHENOLIC RESIN DINSITY REDUCING MATERIAL AND DIETHYLDIPHENYL UREA BINDING AGENT, SAID MOLDED EXPLOSIVE BODY HAVING A DETONATION VELOCITY WITHIN A DEFINED RANGE, SAID DETONATION VELOCITY BEING LESS THAN THE DETONATION VELOCITY OF THE EXPLOSIVE INSELF, SAID PENTAERYTHRITETETRANITRATE UNIFORMLY MIXED WITH SAID HOLLOW SPHERES AND SAID BINDING AGENT.

2. A homogeneous high strength molded explosive body comprising a solidified mixture of solid pentaerythrite-tetranitrate explosive, hollow spheres of phenolic resin density reducing material and a hardenable cold setting plastic based on ethoxylin resins as binding agent, said molded explosive body having a detonation velocity within a defined range, said detonation velocity being less than the detonation velocity of the explosive itself, said pentaerythrite-tetranitrate uniformly mixed with said hollow spheres and said binding agent.

3. A homogeneous high strength molded explosive body comprising a solidified mixture of solid pentaerythrite-tetranitrate explosive, hollow spHeres of phenolic resin density reducing material and a polyvinylacetate adhesive binding agent, said molded explosive body having a detonation velocity within a defined range, said detonation velocity being less than the detonation velocity of the explosive itself, said pentaerythrite-tetranitrate uniformly mixed with said hollow spheres and said binding agent.