Explosive and thermic compositions or charges – Processes of making
Reexamination Certificate
1999-06-16
2001-05-29
Carone, Michael J. (Department: 3641)
Explosive and thermic compositions or charges
Processes of making
C264S003100, C264S003200, C264S003300, C264S003400, C149S092000, C149S011000, C149S019920, C149S019100, C149S019600
Reexamination Certificate
active
06238501
ABSTRACT:
BACKGROUND OF THE INVENTION
High solids explosive compositions are desirable for use in explosive applications. They contain high solids loadings of energetic filllers such as HMX, Cl-20, TEX, TNAZ etc. U.S. Pat. No. 5,587,553 discloses certain compositions made by coacervation precipitation in which the precipitation agent is hexane. As described in the patent, there is a need for highly filled explosive compositions that can be pressed or extruded. This is the field to which the present invention is directed.
SUMMARY OF THE INVENTION
The invention is directed to compositions containing high loadings of TNAZ that are in the form of molding powders, the processes to prepare the powders, the pressed energetic shapes and forms made from the molding powders, articles made from the shapes and forms and ammunitions containing the articles. It also includes novel solutions comprising TNAZ, an elastomer having a polar region and a water-miscible organic solvent. The solutions may be used in the precipitation process of the invention for preparation of the molding powders or may be used for other purposes such as coating other crystalline energetic materials such as epsilon HNIW (CL-20) or HMX to provide enhanced crystals. The solution may also be used to coat metals and to coat aluminum for enhanced blast effect fillers.
REFERENCES:
patent: 5529649 (1996-06-01), Lund et al.
patent: 5565150 (1996-10-01), Dillehay et al.
patent: 5587533 (1996-12-01), Braithwaite et al.
patent: 5716557 (1998-02-01), Strauss et al.
patent: 5717158 (1998-02-01), Capellos et al.
patent: 5759458 (1998-06-01), Haaland et al.
patent: 6171530 (2001-01-01), Haaland et al.
Stec, III Daniel
Surapaneni Rao C.
Travers Brian E.
Beam Robert C.
Carone Michael J.
Moran John F.
Sachs Michael C.
Sanchez Glenda L
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