Patent classifications
C06B23/009
PROPELLANT ELEMENT AND METHOD FOR PRODUCING THE PROPELLANT ELEMENT
The invention relates to a propellant element, the propellant element comprising the following components: at least one pyrotechnical material; at least one processing agent based on a monocarboxylic acid with the following formula
RCOOH
wherein R is an organic residue. Furthermore, a method for producing the propellant element is described.
Water Resistance Additive for Particulate Ammonium Nitrate-Fuel Oil (Anfo) Explosives
The present invention provides for the use of at least one oil soluble polymer comprising linear polymethylene sequences with an average of 10 to 40 consecutive methylene groups to improve the water resistance of an explosive composition comprising particulate ammonium nitrate and a fuel oil, said linear polymethylene sequences with in average 10 to 40 consecutive methylene groups may be either in the main chain or in the side chains of the oil soluble polymer.
Synthesis of energetic material particles with controlled morphology
A surfactant-assisted self-assembly method can be used to crystallize energetic materials with controlled morphology. Microparticles of hexanitrohexaazaisowurtzitane (CL-20) formed by this method may have enhanced functional reproducibility due to their monodisperse nature, and decreased shock sensitivity due to their sub-2 m particle size.
CAST EXPLOSIVE COMPOSITION
The invention relates to a cast explosive composition comprising a polymer-bonded explosive and a defoaming agent, and to a process for reducing the number and/or total volume of voids in a cast explosive composition comprising the steps of: combining a polymer-bonded explosive and a defoaming agent; and casting the explosive composition. The defoaming agent may be used for reducing the number and/or total volume of voids in a cast explosive composition and the cast explosive composition may be used in an explosive product.
Methods of reducing ignition sensitivity of energetic materials
An energetic material comprising an elemental fuel, an oxidizer or other element, and a carbon nanofiller or carbon fiber rods, where the carbon nanofiller or carbon fiber rods are substantially homogeneously dispersed in the energetic material. Methods of tailoring the electrostatic discharge sensitivity of an energetic material are also disclosed. Energetic materials including the elemental fuel, the oxidizer or other element, and an additive are also disclosed, as are methods of reducing ignition sensitivity of the energetic material including the additive. The additive is combined with the elemental fuel and a metal oxide to form the energetic material. The energetic material is heated at a slow rate to render inert the energetic material to ignition while the energetic material remains ignitable when heated at a fast rate.
Solid electrically controlled propellants
The present application discloses an improved electrically controlled propellant wherein the electrically controlled propellant comprises at least one compound selected from the group comprising organosilanes, siloxanes, and poly(dimethylsiloxane)s.
Solid electrically controlled propellants
The present application discloses a variety of improvements that enhance at least one of the mechanical, chemical/energetic, ballistic, or adhesive properties, of a class of ECPs, regardless of whether said ECPs are in solid phase or gels, singly or in combinations thereof.
PHOTOCURABLE AND COMBUSTIBLE COMPOSITION AND USE THEREOF
Disclosed is a photocurable and combustible composition, including an energetic prepolymer, a diluent and a photoinitiator; where the energetic prepolymer is one of or a mixture of two of acrylate-terminated poly(3-nitratomethyl-3-methyloxetane) and acrylate-terminated poly(glycidyl nitrate). The photocurable and combustible composition has an energetic group, i.e., a nitrate group, which can be subjected to self-sustaining combustion in an oxygen-free environment, and the composition can be used to prepare combustible components such as combustible ordnance components.
Method for making pyrotechnic material and related technology
A method for making a pyrotechnic composition in accordance with an embodiment of the present technology includes flowing metal powder, polytetrafluoroethylene powder, and binder powder in separate respective feed streams toward an extruder. The binder powder includes adhesive material and polytetrafluoroethylene anticaking material coating the adhesive material. The method further includes interspersing the metal powder, the binder powder, and the fluoropolymer powder to form a mixture. This mixture is then subjected to an extrusion process during which the anticaking material coating the adhesive material is disrupted. This releases the adhesive material to bind together the metal powder and the polytetrafluoroethylene powder in the extrudate. The powder mixture includes no solvent at any time between being formed and being extruded, yet the extrudate is well-mixed and cohesive.