45results about "Nitrated metallo-organic explosive compositions" patented technology

The present invention includes a gas generator 10 that incorporates a gas generating composition 12 and a scavenging additive 16 in heterogeneous but vapor / gaseous communication with the gas generating composition 12. The scavenging additive retains moisture / contaminants typically evolving over time at relatively higher temperatures. The present invention further includes a gas generating system 180 incorporating the gas generator 10.

Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a metal cation template, a neutral ligand containing hydrogen and nitrogen, and sufficient oxidizing anion to balance the charge of the complex. The complexes are formulated such that when the complex combusts, nitrogen gas and water vapor is produced. Specific examples of such complexes include metal nitrite ammine, metal nitrate ammine, and metal perchlorate ammine complexes, as well as hydrazine complexes. A binder and co-oxidizer can be combined with the metal complexes to improve crush strength of the gas generating compositions and to permit efficient combustion of the binder. Such gas generating compositions are adaptable for use in gas generating devices, such as automobile air bags.

The present invention is directed to an airbag system that includes a gas generant, which is improved in the defects of gas generants using sodium azide in a practical use and has stable combustion capability. A molecular compound comprising (a) a gas generant component, (b) an oxidant component and (c) a reaction accelerator component, preferably represented by the composition formula (I).M.mX.nY(I)is disclosed

The invention discloses a 5,5'-azodi(1-nitriminotetrazolate)bi-potassium compound.The structural formula of the 5,5'-azodi(1-nitriminotetrazolate)bi-potassium compound is shown in the description.The 5,5'-azodi(1-nitriminotetrazolate) bi-potassium compound is mainly used for the field of energetic materials.

Embodiments of the present subject matter provide a compound and material that may be used as a lead-free primary explosive. An embodiment of the present subject matter provides the compound copper(I) nitrotetrazolate. Certain embodiments of the present subject matter provide methods for preparing lead-free primary explosives. The method includes: providing a cupric salt; providing water; providing a 5-nitrotetrazolate salt; combining the cupric salt, water and 5-nitrotetrazolate salt to form a mixture, heating the mixture, adding a reducing agent and stirring with continued heating. The method may also include providing cupric chloride, sodium 5-nitrotetrazolate and sodium ascorbate. Certain embodiments of the present subject matter also provide methods for preparing copper(I) nitrotetrazolate. The method includes: providing cupric salt; providing water; providing 5-nitrotetrazolate salt; combining the cupric salt, water and 5-nitrotetrazolate salt to form a mixture, heating the mixture, adding a reducing agent and stirring with continued heating. The method may also include providing cupric chloride, sodium 5-nitrotetrazolate and sodium ascorbate.

A heavy-metal free primer composition consisting essentially of potassium dinitrobenzofuroxane as a primary explosive, diazodinitrophenol as a secondary sensitization explosive, and an inert sensitizer is disclosed. The preferred mix is comprised of 50% of potassium dinitrobenzofuroxane, 30% of diazodinitrophenol and 20% of ceramics powder as the inert sensitizer. This composition has sufficient sensitivity, good ballistic properties for all types of cartridges and very strong stability in high temperature and high humidity conditions.

Embodiments of the present subject matter provide a compound and material that may be used as a lead-free primary explosive. An embodiment of the present subject matter provides the compound copper(I) nitrotetrazolate. Certain embodiments of the present subject matter provide methods for preparing lead-free primary explosives. The method includes: providing a cupric salt; providing water; providing a 5-nitrotetrazolate salt; combining the cupric salt, water and 5-nitrotetrazolate salt to form a mixture, heating the mixture, adding a reducing agent and stirring with continued heating. The method may also include providing cupric chloride, sodium 5-nitrotetrazolate and sodium ascorbate. Certain embodiments of the present subject matter also provide methods for preparing copper(I) nitrotetrazolate. The method includes: providing cupric salt; providing water; providing 5-nitrotetrazolate salt; combining the cupric salt, water and 5-nitrotetrazolate salt to form a mixture, heating the mixture, adding a reducing agent and stirring with continued heating. The method may also include providing cupric chloride, sodium 5-nitrotetrazolate and sodium ascorbate.

The invention discloses a sulfur-free and chloride-free pyrotechnic composition, which is prepared from the following ingredients of oxidizing agents, catalysts, initiating explosives and combustion agents, wherein the oxidizing agents are nitrate; the catalysts are metallocene and derivatives thereof; the initiating explosives are high-energy nickel coordination compounds; the combustion agents are charcoal. The sulfur-free and chloride-free pyrotechnic composition has the advantages that the safety is high; the environment-friendly and pollution-free effects are achieved; the storage is easy; the combustion performance is good; the thrust is strong; the excellent performance is realized.

The invention aims to provide a manufacturing method of a potassium picrate-red lead silicon series electric ignition charge. The manufacturing method comprises the steps of: weighing, mixing, smearing the ignition charge and the like, so that the ignition charge has better flame sensitivity and lower mechanical strength; and thus, the ignition capacity of the electric ignition charge is high, and the intrinsic safety and reliability during production and use can be effectively improved.

Gas generating compositions and methods for their use are provided. Metal complexes are used as gas-generating compositions. These complexes are comprised of a metal cation template, a neutral ligand containing hydrogen and nitrogen, and sufficient oxidizing anion to balance the charge of the complex. The complexes are formulated such that when the complex combusts, nitrogen gas and water vapor is produced. Specific examples of such complexes include metal nitrite ammine, metal nitrate ammine, and metal perchlorate ammine complexes, as well as hydrazine complexes. A binder and co-oxidizer can be combined with the metal complexes to improve crush strength of the gas-generating compositions and to permit efficient combustion of the binder. Such gas-generating compositions are adaptable for use in gas-generating devices, such as automobile air bags.

The present invention relates to an electric detonator (1) comprising a cap (2), comprising a priming charge (3) and an electrode (4), comprising a positive pole, a negative pole and a resistor element (8), the said priming charge (3) comprising at least two primary explosives, a first primary explosive (9) and a second primary explosive (10), and at least one secondary explosive (11). The electric detonator is characterized in that the two primary explosives (9, 10) and the secondary explosive (11) are arranged in layers, in an increasing degree of sensitivity, bearing one against the other, wherein the first primary explosive (9), constituting the most sensitive of the two primary explosives (9, 10), is arranged closest to the resistor element (8), and in that the second primary explosive (10) is arranged thereafter between the first primary explosive (10) and the secondary explosive (11). The invention also relates to a production method for the said electric detonator (1).

A spherical detonating explosive is prepared through mixing the composite crystal form controlling agent, sodium azide and the alkaline solution of sodium picrate to obtain mixed solution, adding dextrin solution to the solution of lead nitrate to obtain basic solution, adding less mixed solution to the basic solution, adding rest of mixed solution to the basic solution at 65-80 deg.C within 30-60 min, regulating pH value, siphonating mother liquid, and water washing. Its advantages are high compression resistance, detonating power, flame sensitivity and thermal stability, and no environmental pollution.

A gas generant for an inflatable restraint device (for example, an airbag system for a vehicle) is a monolithic compressed solid that has a linear burn rate of greater than or equal to about 1.6 inches per second at a pressure of about 3,000 pounds per square inch. The gas generant can be in the form of an annular disk having a plurality of apertures. The gas generant may be substantially free of binder and may have a low initial surface area which progressively increases during burning. The gas generant provides a gas generation profile that improves restraint of vehicle occupants, including those occupants that are out-of-position. Additionally, the shaped gas generant decreases occupant exposure to toxic effluent combustion products and solid respirable particulates.

The invention belongs to the technical field of industrial detonators, and in particular relates to a coal mine permitted industrial electric detonator; the coal mine permitted industrial electric detonator comprises an inner cap, a delay body and a compound primary explosive; the compound primary explosive comprises a primary explosive, a flame inhibitor, a high explosive and an adhesive; the primary explosive is one or more selected from the group including dinitrodiazophenol, lead azide, lead trinitroresorcinate and nickel hydrazine nitrate; the high explosive is one or more selected from the group including cyclonite and pentaerythrite tetranitrate; and the flame inhibitor is one or more selected from the group including a cryolite flame inhibitor, a calcium fluoride flame inhibitor and a sodium fluoride flame inhibitor. According to the invention, aiming at the problem that gas explosion is easily caused by the industrial electric detonator, the novel coal mine permitted industrial electric detonator is provided; the gas safety problem is solved; coal mine blasting safety is ensured; and the coal mine permitted industrial electric detonator has good popularization value and is applied to scale production.

The invention discloses a complex primary explosive containing DNT which comprises DNT and primary explosive, wherein the mass ratio of DNT is 10-45%; the primary explosive is one component of or the mixture of several components of dinitrodiazophenol, lead azide, fulminate, lead trinitroresorcinate, NHN and GTG primary explosive. The complex primary explosive containing DNT, provided by the invention, is relatively high in manufacturing safety, relatively low in cost, and better in pressure resistance when compared with micro primary explosive and pure primary explosive.

Energetic compounds based on bismuth salts with reduced toxicity that are obtained through the reaction of soluble bismuth salts with soluble salts of organic or inorganic energetic compounds based on azides, derivatives aromatic nitro compounds or nitrogenous heterocyclic compounds, together with the methods for their preparation and application.

Pyrotechnic priming charge (1) intended to be used preferably for starting up one or more ignition chains, comprising a coherent porous fuel structure (2) and at least one oxidizer (4). According to the invention, the primer also comprises a moisture inhibitor (5) applied to the surface of the primer with a view to increasing the safety of the primer and reducing the risk of unintentional ignition due to breakdown of the oxidizer under the influence of ambient moisture and temperature.

An improved priming mix of the type including an initiator, fuel, and oxidizer, and pyrotechnic component. The improvement being the inclusion of between about 3% and about 20% propellant superfines, the superfines comprising particles less than 100 μm.

According to an aspect, the present embodiments may be associated with a device and method of using an initiator including a body configured for receiving at least one explosive including barium 5-nitriminotetrazolate (BAX). According to a further aspect, the body of the initiator is configured for receiving at least two layers of explosive. In this embodiment, the layers of explosive include a primary explosive of the barium 5-nitriminotetrazolate (BAX) and a secondary explosive includes 2,6-Bis(picrylamino)-3,5-dinitropyridine (PYX) and / or Hexanitrostilbene (HNS).

The invention relates to a novel high-performance nitrogen-rich metal complex Cu(NTZNO)(NH3)(NH2NO2) and its design method and application and belongs to the crossing field of metal materials, energetic materials and quantum chemistry. Cu as a metal center and nitrogen-rich and oxygen-rich nitro-tetrazolium nitroxide (NTZNO), NH3 and NH2NO2 as high-energy ligands form the complex through a skeleton structure. The design method effectively ensures that the complex has high energy and minimizes the high sensitivity of the metal elements so that compared with the traditional primary explosive, the complex has higher energy and lower sensitivity and can be used as a substitute for the traditional high energy explosive and primary explosive.

PCT No. PCT / JP95 / 02732 Sec. 371 Date Aug. 28, 1996 Sec. 102(e) Date Aug. 28, 1996 PCT Filed Dec. 27, 1995 PCT Pub. No. WO96 / 20147 PCT Pub. Date Jul. 4, 1996A gas generant for an air, which is improved in the defects of gas generants using sodium azide in a practical use and has stable combustion capability. And a molecular compound comprising (a) a gas generant component, (b) an oxidant component and (c) a reaction accelerator component, preferably represented by the composition formula (I).M.mX.nY(I)[wherein, M is Al Mg, Ca, Cr, Cu, Zn, Mn, Fe, Co, Sr, Ni and another metal components; X is a nitrogen-containing compound having 0 or 1 carbon atom; Y is an anion such as NO3 and ClO; m is a number of 1 to 3; and n is a number 2 to 3].

According to an aspect, the present embodiments may be associated with a device and method of using an initiator including a body configured for receiving at least one explosive including barium 5-nitriminotetrazolate (BAX). According to a further aspect, the body of the initiator is configured for receiving at least two layers of explosive. In this embodiment, the layers of explosive include a primary explosive of the barium 5-nitriminotetrazolate (BAX) and a secondary explosive includes 2,6-Bis(picrylamino)-3,5-dinitropyridine (PYX) and / or Hexanitrostilbene (HNS).

Pyrotechnic priming charge (1) intended to be used preferably for starting up one or more ignition chains, comprising a coherent porous fuel structure (2) and at least one oxidizer (4). According to the invention, the primer also comprises a moisture inhibitor (5) applied to the surface of the primer with a view to increasing the safety of the primer and reducing the risk of unintentional ignition due to breakdown of the oxidizer under the influence of ambient moisture and temperature.

The invention provides a 5-aminotetrazole zinc energetic complex having the structural formula shown in the specification. The 5-aminotetrazole zinc energetic complex provided by the invention has high nitrogen content, and the nitrogen content is 61.7%. The 5-aminotetrazole zinc energetic complex has good thermal stability, and the decomposition temperature of DSC is 340 DEG C in a nitrogen environment under the condition that the heating rate is 10 DEG C / min.

A highly heat-resistant gas generating agent is provided. The gas generating agent is for a gas generator for an airbag system that is installed at least outside a vehicle cabin and that protects an individual subjected to impact by the vehicle, and has a mass loss rate of not more than 1% after holding for 400 hours at 130° C. in a sealed system. The gas generating agent preferably comprises fuel and oxidizing agent and the melting point of the fuel is preferably at least 250° C.

The invention discloses a 4-cyano-5-nitro-1, 2, 3-triazole metal salt as well as a preparation method and an application of the 4-cyano-5-nitro-1, 2, 3-triazole metal salt. The invention discloses a 4-cyano-5-nitro-1, 2, 3-triazole metal salt as shown in a formula I in the specification, and a preparation method of the 4-cyano-5-nitro-1, 2, 3-triazole metal salt. The invention discloses a preparation method of 4-cyano-5-nitro-1, 2, 3-triazole metal salt, which comprises the following steps: dissolving 1, 4-diamino-3, 5-dinitropyrazole (DADNP) as shown in a formula II in a solvent, adding an acidified or unacidified reagent A to react, and adding a pH regulator to regulate the pH value to be greater than 7 after the reaction is finished, thereby obtaining the 4-cyano-5-nitro-1, 2, 3-triazole metal salt. The compound belongs to the field of energetic materials and can be applied to energetic materials.

The invention discloses a chemical formula of [Cs(ABTNA)H 2 O] n An insensitive energetic metal-organic framework and a preparation method thereof, comprising the following steps: Step 1: Take a certain amount of deionized water and place it in a round-bottomed flask, place a certain amount of 3-amino-3'-nitroamino-5, 5'-link-1,2,4-triazole is suspended in deionized water and stirred to make it a uniformly dispersed ligand suspension for use; Step 2: Weigh a certain amount of metal cesium salt in a beaker, Add a certain amount of deionized water to configure a certain concentration of cesium metal salt solution, and stir it until it becomes a clear cesium metal salt solution for later use; step 3: heat the ligand suspension prepared in the above step 1 to a certain concentration After temperature, slowly add the cesium metal salt solution prepared in step 2 into the ligand suspension, keep the reaction temperature for a period of time after the addition is completed, then cool naturally, filter and dry the resulting product crystals to obtain pure .