Patent classifications
C06B21/0041
METHOD OF MANUFACTURING PRESS POLYMER-BONDED EXPLOSIVE USING POLYMER EMULSION AND PRESS POLYMER-BONDED EXPLOSIVE MANUFACTURED USING THE SAME
A method of manufacturing a press polymer-bonded explosive, in which a polymer emulsion is used to maximize the efficiency of a process, and a press polymer-bonded explosive manufactured using the same. The method includes a polymer-emulsion-manufacturing step of mixing a monomer of a polymer binder and an emulsifier with a process water and then adding an initiator to thus manufacture a polymer emulsion using a polymerization reaction, a slurry-manufacturing step of mixing a raw material including an explosive and an emulsion breaker with fresh process water to thus manufacture a slurry, an agglomerated-particle-forming step of adding the manufactured polymer emulsion to the manufactured slurry to thus form agglomerated particles in which a surface of the raw material is coated with the polymer binder, and an agglomerated-particle-obtaining step of collecting the agglomerated particles using filtration and drying the collected agglomerated particles.
Chemical heat sources for use in down-hole operations
A chemical reaction heat source for use in heaters for downhole applications is provided. The heat source has a solid fuel composition that comprises thermite and a binding agent. The binding agent serving to maintain the solid form of the solid fuel composition during burning and ensure a predetermined uniform heating pattern can be provided for longer. The solid fuel composition can be provided in the form of blocks. The solid fuel composition can also be provided in the form of a plurality of fragments that, during burning, behave more like powdered thermite and have the ability to flow.
METHODS FOR MANUFACTURING PYROTECHNIC MATERIAL FOR THERMAL BATTERIES
Embodiments directed to a method of manufacturing a pyrotechnic article for use with a thermal battery are disclosed. The method includes forming an iron oxide preform from iron oxide powder. The method also includes reducing the iron oxide preform to an iron preform made of metallic iron. The method further includes impregnating the iron preform with an oxidizer to form the pyrotechnic article.
Methodologies to produce simulants of textured threat compounds
Various embodiments of the present invention are directed towards a simulant and method relating to producing a simulant. For example, a simulant of a textured target threat includes a background material associated with a background attenuation, and a texture component(s) dispersed in the background material and associated with a component attenuation and a component characteristic. The component characteristic prevents the component attenuation of the texture component from being homogeneously dispersed throughout the background attenuation of the background material, to cause the simulant to mimic an aspect(s) of an X-ray signature of the textured target threat.
Noctilucent bang snaps and preparation methods thereof
Provided herein are noctilucent bang snaps capable of producing flashing light when thrown into the air after a short duration of light absorption and staying luminous for 30 minutes when scattered on the ground after falling and explosion, in order to provide the effects of nighttime visibility and ornament. A preparation method of the noctilucent bang snap is also provided that has the advantages of operational simplicity, technical stability, easy availability of raw materials, product excellence, and extremely high commercial value.
Method for producing a fragment / reactive material assembly
A method for the manufacture of a composite fragmenting material having exothermic properties includes the steps of packing a mold with preformed metal fragments; filling interstitial spaces surrounding the metal fragments with a reactive metal powder to form a mixture; and then sintering the mixture at a temperature effective to both coat the metal fragments with the reactive metal powder and to bond the metal fragments together. In one embodiment the composite fragmenting material is formed into a nosecone for a warhead.
Ignition booster compositions and methods of making the same
An igniter composition has (i) a source of copper selected from basic copper nitrate, copper oxide, copper hydroxide, and/or copper complex of guanylurea nitrate, (ii) one or more oxidizers, (iii) a binder selected from guanidine nitrate and/or guanylurea nitrate, and (iv) an inorganic fuel comprising an elemental metal or metal hydride selected from the group consisting of: titanium, silicon, aluminum, magnesium, iron, and combinations thereof. The igniter composition may be substantially free of boron or contain minimal amounts of boron. A minimum flame temperature at combustion (T.sub.c) of about 2300K (2,027 C.). Such a mixture may be spray dried to form a powder that is compacted to form a solid igniter composition, such as a pellet or grain. The mixture that is spray dried may have a heat of explosion (HEX) of about 1,000 calories per gram (cal/g). Inorganic fuel can then be added to the spray-dried powder.
METHODS FOR FORMING ENERGETIC MOLDING POWDERS AND THE ENERGETIC MOLDING POWDERS FORMED BY THESE METHODS
Methods for manufacturing explosives and the explosives manufactured by the methods are disclosed. Embodiments include mechanical mixing energetic particles with a thermoset binder material. Some embodiments include mixing the particles and binder using a bladeless mixer until homogeneous. Embodiments may also include heating a mixture of high energetic molding powder and a binder material at a low temperature (e.g., 70 C.) until the binder material is partially cured. Some embodiments include breaking up the mixture into pieces about 1 mm in size to form an energetic molding powder. And some embodiments include pressing a mixture of energetic molding powder into a die.