Nitrated Acyclic, Alicyclic Or Heterocyclic Amine Patents (Class 149/92)
  • Patent number: 9701592
    Abstract: A safe and simple method for synthesizing insensitive nano-size cocrystals of high explosive materials such as HMX and Cl-20 by suspending the explosive materials in a nonsolvent solution and bead milling the solution.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: July 11, 2017
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Rajen B. Patel, Hongwei Qiu, Victor Stepanov, Reddy Damavarapu
  • Patent number: 9199887
    Abstract: Propellant compositions include an energetic binder, such as nitrocellulose, and a stabilized, encapsulated red phosphorous as a ballistic modifier. The propellant composition may additionally include an energetic plasticizer, such as nitroglycerine. For example, the propellant composition may be formed by mixing a double or multi base propellant that includes nitrocellulose plasticized with nitroglycerine with the stabilized, encapsulated red phosphorus. The propellant compositions may be substantially lead-free and may exhibit improved ballistic properties. Methods of forming such propellant compositions and an ordnance device including such propellant compositions are also disclosed.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: December 1, 2015
    Assignee: Orbital ATK, Inc.
    Inventors: Matthew T. Hafner, Ruben Balangue, Danny D. Clark, John William Westbrook, III
  • Publication number: 20150096653
    Abstract: An autoignition composition for a gas generant for an airbag or the like. The autoignition comprises a mixture of CuO as the oxidizer in a weight percentage of 45% to 75%, and aminoguanidine nitrate as the fuel in a weight percentage of 25% to 55%. To increase the flame temperature of the mixture, a metal fuel such as magnesium or aluminum can be added.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Applicant: ARC AUTOMOTIVE
    Inventors: James Michael ROSE, Russell Klaus Campbell
  • Patent number: 8986473
    Abstract: The invention is a composition for a high burning-rate solid rocket propellant, where the composition includes a binder compounded with a soluble energetic additive; a metallic fuel; and an oxidative fuel. The resulting composition has a tactical Class 1.3 hazard rating, and a linear regression rate that is substantially equivalent to a tactical Class 1.1 hazard rating obtainable using solid rocket propellants. The composition may include a heat-conducting element, a plasticizer, a curing component, a combustion catalyst, and curing catalyst.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: March 24, 2015
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John M. Kelley, Robert C. Gill
  • Publication number: 20150013859
    Abstract: 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.
    Type: Application
    Filed: August 27, 2013
    Publication date: January 15, 2015
    Applicant: Digital Solid State Propulsion, LLC
    Inventor: Michael D. McPherson
  • Publication number: 20140367003
    Abstract: The invention relates to a method of producing a range of particulate energetic materials with tailored particle sizes and extremely narrow particle size distributions. The use of membrane emulsification apparatus provides a means of formulating explosives with a selectable particle size, without the use of milling techniques to physically reduce the size of the particulates.
    Type: Application
    Filed: December 7, 2012
    Publication date: December 18, 2014
    Inventor: Matthew James Ian Williamson
  • Patent number: 8911575
    Abstract: Moldable explosives containing chlorinated and/or fluorinated oils and waxes are described which exhibit significant energetic characteristics while at the same time possessing desirable IM character. Such moldable explosives are potential replacements for the C4 compositions known and used in the art.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: December 16, 2014
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Anthony R. Di Stasio, Sanjeev K. Singh, Daniel Zaloga, Rajen Patel
  • Publication number: 20140338803
    Abstract: A smokeless high-energy solid propellant composition, which contains a bismuth-based compound as a combustion improver and exhibits a low pressure exponent, and a method of preparing the same are provided. The propellant composition contains the bismuth-based compound, thus ensuring preparation processability of the propellant, especially pot-life, and thereby a propellant curing system can be changed thus ensuring reliability of the propellant preparation processability, unlike temperature control and curing inhibition catalyst addition methods published to date. This composition advantageously exhibits a low pressure exponent.
    Type: Application
    Filed: June 26, 2013
    Publication date: November 20, 2014
    Inventors: Byoung-Sun MIN, Moon-Sam RYOO, Seung-Won KO
  • Publication number: 20140305555
    Abstract: A primer for small arms ammunition including a primary explosive and an oxidizer system containing bismuth oxide is provided. A method of forming the primer and a small arms ammunition cartridge also is provided. The oxidizer system can be non-hygroscopic and non-toxic. The primer can include reducing agents or fuels, sensitizers, binders and gas producing agents.
    Type: Application
    Filed: June 26, 2014
    Publication date: October 16, 2014
    Inventors: Donald Allen Pile, Henry J. John, JR.
  • Publication number: 20140261930
    Abstract: A method of producing DEMN eutectic comprises reacting a reactant mixture comprising ethylenediamine and diethylenetriamine with aqueous nitric acid to form a reaction mixture comprising diethylentriamine trinitrate and ethylenediamine dinitrate. The reaction mixture is combined with methylnitroguanidine and nitroguanidine to form an aqueous slurry. Water is removed from the aqueous slurry. A method of producing an energetic composition, and a system for producing DEMN eutectic are also described.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: ALLIANT TECHSYSTEMS INC.
    Inventor: ALLIANT TECHSYSTEMS INC.
  • Patent number: 8784583
    Abstract: A primer for small arms ammunition including a primary explosive and an oxidizer system containing bismuth oxide is provided. A method of forming the primer and a small arms ammunition cartridge also is provided. The oxidizer system can be non-hygroscopic and non-toxic. The primer can include reducing agents or fuels, sensitizers, binders and gas producing agents.
    Type: Grant
    Filed: January 23, 2004
    Date of Patent: July 22, 2014
    Assignee: RA Brands, L.L.C.
    Inventors: Donald Allen Pile, Henry J. John, Jr.
  • Patent number: 8778104
    Abstract: A substantially nitrocellulose-free insensitive gun propellant for barrel-type weapons is provided. The gun propellant includes at least one nitramine, such as HMX and/or RDX, a second energetic, and an inert binder system. The gun propellant is capable of producing a maximum projectile velocity exceeding 2680 ft/sec when fired from a 5 inch 54 caliber gun and gives a response to slow cook-off insensitive munitions testing of Type 4 or higher, and a response to fragment impact insensitive munitions testing of Type 3 or higher as measured by STANAG 4382 and STANAG 4496, respectively. Also provided is an ammunition round assembly, and an armament system.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: July 15, 2014
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Christine M. Michienzi, Christine D. Knott, Brian J. Isle
  • Patent number: 8778103
    Abstract: Methods of forming energetic compositions include forming a premix comprising a nitrate ester, a polymer, and a stabilizer, and combining solids with the premix. Additional stabilizer may be added with the solids and may remain in a crystalline state. Some methods include dissolving a stabilizer in at least one of a plurality of nitrate esters. Energetic compositions include a continuous matrix and a stabilizer. The continuous matrix includes a nitrate ester and surrounds a solid energetic material. Some compositions include a first nitrate ester, a second nitrate ester having a decomposition rate lower than the first nitrate ester, and a stabilizer. An article includes a housing and an energetic composition in the housing.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: July 15, 2014
    Assignee: Alliant Techsystems Inc.
    Inventors: John R. Moser, Jr., Richard L. Raun, David D. Shaw
  • Patent number: 8747581
    Abstract: The invention relates to the field of explosives, and more particularly relates to particles of an explosive, wherein they are in crystalline form, have a rounded shape and a majority of them contain no internal defect. Particles of an explosive in crystalline form include a volume fraction of closed pores of less than or equal to 0.05%. A method for preparing explosive particles includes preparing crystalline particles, a majority of which are without an internal defect; and rounding the crystalline particles.
    Type: Grant
    Filed: June 2, 2006
    Date of Patent: June 10, 2014
    Assignee: Institut Franco-Allemand de Recherches de Saint-Louis
    Inventor: Lionel Borne
  • Patent number: 8729261
    Abstract: The present invention relates to a method for recrystallizing fine spherical cyclotrimethylenetrinitramine (Research Department Explosive, hereinafter, referred to as “RDX”) particles, and the method for recrystallizing fine spherical RDX particles according to the present invention may include (a) introducing a powder material containing RDX into a container, (b) introducing a dimethylether compressed gas into the container and dissolving the RDX to form a RDX solution, (c) releasing and decompressing the RDX solution into atmospheric pressure to form crystallized RDX particles, and (d) separating and collecting the RDX particles.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: May 20, 2014
    Assignee: Agency for Defense Development
    Inventors: Byoung-Min Lee, Youn-Woo Lee, Hyoun-Soo Kim, Joo-Seung Chae
  • Patent number: 8685186
    Abstract: A group of tertiary amine azides are useful as hypergolic fuels for hypergolic bipropellant mixtures. The fuels provide higher density impulses than monomethyl hydrazine (MMH) but are less toxic and have lower vapor pressures that MMH. In addition, the fuels have shorter ignition delay times than dimethylaminoethylazide (DMAZ) and other potential reduced toxicity replacements for MMH.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: April 1, 2014
    Assignee: CFD Research Corporation
    Inventor: Debasis Sengupta
  • Patent number: 8663406
    Abstract: A insensitive explosive comprises: 34.9 wt % diethylenetriamine trinitrate (DETN), 33.4 wt % ethylenediamine dinitrate (EDD), 25.4 wt % methyl-guanidine (MeNQ), and 6.3 wt % guanidine (NQ). This quaternary eutectic is used in combination with a sensitive explosive. A low melting temperature facilitates melt casting to fill 155 mm artillery shells.
    Type: Grant
    Filed: October 2, 2006
    Date of Patent: March 4, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Stephen A. Aubert, Brian D. Roos
  • Patent number: 8636861
    Abstract: Secondary crystalline high explosives are disclosed which are suitable for filling very small volume loading holes in micro-electric initiators for micro-electro-mechanical mechanisms (MEMS), used as safe and arm (S&A) devices. The explosives are prepared by adding the such a high explosive to an aqueous first volatile mobile phase, adding such a high explosive to a non-aqueous second volatile mobile phase, mixing the first and second volatile mobile phases and then loading the combined phases into the MEMS device and allowing the aqueous and non-aqueous solvents to evaporate depositing the high explosive. Enhanced adhesion between the deposited high explosive and enhanced rheological properties can be obtained by adding a polymeric binder to both mobile phases.
    Type: Grant
    Filed: December 29, 2010
    Date of Patent: January 28, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Daniel Stec, III, Amy Wilson, Brian E. Fuchs, Neha Mehta, Paula Cook
  • Patent number: 8636860
    Abstract: An energetic ionic liquid catalytic decomposition gas generator uses stoichiometric and nonstoiciometric mixtures of specific energetic ionic liquids and iridium catalyst. The catalyst temperature used and gas production versus ignition may be controlled by combining one or more cationic species with one or more anionic species of the ionic liquid(s).
    Type: Grant
    Filed: December 1, 2010
    Date of Patent: January 28, 2014
    Assignees: Streamline Automation, LLC, The University of Alabama
    Inventors: Roberto DiSalvo, H. Waite Dykes, Jr., Robin D. Rogers, Julia Shamshina, Marcin Smiglak
  • Patent number: 8632643
    Abstract: Embodiments of materials suitable for use as a replacement for Tetrazene and methods of preparing such materials are described. In one embodiment, the material comprises MTX-1, as well as simple salts or complexes derived therefrom. The methods of preparing such materials include combining Tetrazene and an acid to form a suspension, where the acid is nitric acid, sulfuric acid, perchloric acid, or hydrochloric acid. A nitrite salt may be added to the suspension, where the nitrite salt is sodium nitrite, lithium nitrite, potassium nitrite, an aqueous solution of sodium nitrite, an aqueous solution of lithium nitrite, or an aqueous solution of potassium nitrite. In some embodiments, the suspension is stirred until the suspension has a white appearance.
    Type: Grant
    Filed: August 1, 2013
    Date of Patent: January 21, 2014
    Assignee: Pacific Scientific Energetic Materials Company
    Inventors: John W. Fronabarger, Michael D. Williams
  • Patent number: 8617327
    Abstract: The present invention is an electrically controlled propellant comprising a binder, an oxidizer, and a cross-linking agent. The boric acid (the cross-linking agent) has been found to function as a cross-linking agent for the high molecular binder used to make the propellant, thereby improving the composition's ability to withstand combustion without melting. The present invention also may include 5-aminotetrazole (5-ATZ) as a stability-enhancing additive. The binder of the present invention may include polyvinylalcohol (PVA) and/or the co-polymer of polyvinylalcohol/polyvinylamine nitrate (PVA/PVAN).
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: December 31, 2013
    Assignee: Digital Solid State Propulsion LLC
    Inventors: Arthur Katzakian, Charles Grix
  • Patent number: 8613821
    Abstract: Provided is a basic metal nitrate suitable as an oxidizing agent for a gas generating agent, which is a basic metal nitrate having a good thermal stability and meeting at least one requirement of the following (a) to (d): (a) a particle diameter of 0.5 to 40 ?m; (b) a degree of crystallinity having 0.4 deg or less of a half band width of the peak in the X-ray analysis; (c) an initiation temperature of weight loss being 220° C. or higher according to TG-DTA analysis; and (d) an impurity content of 1,000 ppm or less based on Na atom. Further provided is a gas generating composition which has a low toxicity, a high burning rate and a low combustion temperature and which is used in a gas generator for an air bag. The gas generating composition comprises (a) tetrazole derivatives, guanidine derivatives or a mixture thereof, (b) a basic metal nitrate and (c) a binder and/or a slag-forming agent.
    Type: Grant
    Filed: September 8, 2010
    Date of Patent: December 24, 2013
    Assignee: Daicel Chemical Industries, Ltd.
    Inventors: Xingxi Zhou, Kazuyuki Matsuoka, Jianzhou Wu, Yo Yamato, Takeshi Takahori, Kaoru Yamazaki
  • Patent number: 8585840
    Abstract: A process for recovering the energetic component from plastic bonded explosives. The process uses high velocity kinetic energy in the form of gases, liquids, or solids, alone or in combination, to cause the structural failure of the adhesive bonding between the polymer matrix and energetic component for the purpose of providing adequate loci for the solvation of the energetic component by appropriate solvents.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: November 19, 2013
    Assignee: G.D.O., Inc.
    Inventors: Paul L. Miller, Steve J. Schmit
  • Patent number: 8580054
    Abstract: In one embodiment, a melt-castable energetic material comprises at least one of: 3,5-bis(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazole (DNFO), and 3-(4-amino-1,2,5-oxadiazol-3-yl)-5-(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazole (ANFO). In another embodiment, a method for forming a melt-castable energetic material includes reacting 3,5-bis(4-amino-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazole (DAFO) with oxygen or an oxygen-containing compound to form a mixture of at least: DNFO, and ANFO.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: November 12, 2013
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Philip F. Pagoria, Mao X. Zhang
  • Publication number: 20130263982
    Abstract: In one embodiment, a melt-castable energetic material comprises at least one of: 3,5-bis(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazole (DNFO), and 3-(4-amino-1,2,5-oxadiazol-3-yl)-5-(4-nitro-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazole (ANFO). In another embodiment, a method for forming a melt-castable energetic material includes reacting 3,5-bis(4-amino-1,2,5-oxadiazol-3-yl)-1,2,4-oxadiazole (DAFO) with oxygen or an oxygen-containing compound to form a mixture of at least: DNFO, and ANFO.
    Type: Application
    Filed: April 4, 2012
    Publication date: October 10, 2013
    Applicant: LAWRENCE LIVERMORE NATIONAL SECURITY, LLC
    Inventors: Philip F. Pagoria, Mao Xi Zhang
  • Publication number: 20130233636
    Abstract: The invention relates to gas generating compositions for use in safety devices for vehicles. In particular, the invention relates to said compositions based on guanidine nitrate used in pedestrian protection devices. The composition substantially comprises 75 to 98% by weight of guanidine nitrate as fuel and 2 to 25% by weight of a burn accelerator selected from the group of the transition metal compounds, the metal nitrates, metal chlorates, metal perchlorates, ammonium perchlorate and mixtures thereof, wherein the transition metal compounds are selected from the compounds of the transition metals Ti, Cr, Mn, Fe, Cu, Zn, Zr and Mo and wherein the gas generating composition exhibits a burn rate of from 3 to 17 mm/s at 20 MPa.
    Type: Application
    Filed: February 18, 2013
    Publication date: September 12, 2013
    Applicant: TRW Airbag Systems GmbH
    Inventors: Jorg Friedrich, Achim Hofmann, Karl-Heinz Rodig, Siegfried Zeuner
  • Patent number: 8524019
    Abstract: Embodiments of materials suitable for use as a replacement for Tetrazene and methods of preparing such materials are described. In one embodiment, the material comprises MTX-1, as well as simple salts or complexes derived therefrom. The methods of preparing such materials include combining Tetrazene and an acid to form a suspension, where the acid is nitric acid, sulfuric acid, perchloric acid, or hydrochloric acid. A nitrite salt may be added to the suspension, where the nitrite salt is sodium nitrite, lithium nitrite, potassium nitrite, an aqueous solution of sodium nitrite, an aqueous solution of lithium nitrite, or an aqueous solution of potassium nitrite. In some embodiments, the suspension is stirred until the suspension has a white appearance.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: September 3, 2013
    Assignee: Pacific Scientific Energetic Materials Company
    Inventors: John W. Fronabarger, Michael D. Williams
  • Patent number: 8460487
    Abstract: A method of desensitization of a sensitive liquid is provided, which includes the continuous stirring of the sensitive liquid with an inert liquid.
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: June 11, 2013
    Assignee: Rafael, Advanced Defense Systems Ltd
    Inventors: Benjamin Keren, Yael Cohen-Arazi, Edith Sokol, David Fischer
  • Patent number: 8444784
    Abstract: Insensitive munition-type explosive material and methods for forming insensitive munition-type explosive material are provided. In an exemplary embodiment, an insensitive munition-type explosive material comprises a particle of BNCP and a surfactant-comprising shell that encapsulates the particle of BNCP.
    Type: Grant
    Filed: December 14, 2009
    Date of Patent: May 21, 2013
    Assignee: Raytheon Company
    Inventors: Sami Daoud, Thomas R. Berger, Michael J. Villeburn
  • Patent number: 8426583
    Abstract: A heavy-metal-free sequence leading to a superior, more economical, and scalable process for the high efficiency conversion of hexaallylhexaazaisowurtzitane (HAllylIW) to hexanitohexaazaisowurtzitane (CL-20).
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: April 23, 2013
    Inventors: Robert D. Chapman, Richard A. Hollins
  • Patent number: 8426582
    Abstract: A heavy-metal-free sequence leading to a superior, more economical, and scalable process for the high efficiency conversion of hexaallylhexaazaisowurtzitane (HAllylIW) to hexanitrohexaazaisowurtzitane (CL-20).
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: April 23, 2013
    Assignee: The United States of America as Represented by the Secretary of the Navy
    Inventors: Robert D. Chapman, Richard A. Hollins
  • Patent number: 8382922
    Abstract: A group of tertiary amine azides are useful as hypergolic fuels for hypergolic bipropellant mixtures. The fuels provide higher density impulses than monomethyl hydrazine (MMH) but are less toxic and have lower vapor pressures that MMH. In addition, the fuels have shorter ignition delay times than dimethylaminoethylazide (DMAZ) and other potential reduced toxicity replacements for MMH.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: February 26, 2013
    Assignee: CFD Research Corporation
    Inventor: Debasis Sengupta
  • Publication number: 20130025749
    Abstract: A gas generating pyrotechnic composition that in addition to a primary fuel component and a primary oxidizer component includes critical relative amounts of elemental carbon and cupric oxide. Also provided are associated methods for producing an inflation gas for an occupant restraint system of a motor vehicle.
    Type: Application
    Filed: July 27, 2011
    Publication date: January 31, 2013
    Applicant: Autoliv ASP, Inc.
    Inventor: Gary K. LUND
  • Patent number: 8361258
    Abstract: A precursor composition of a reactive material that comprises a metal material and an energetic material, such as at least one oxidizer or at least one class 1.1 explosive. The metal material defines a continuous phase at a processing temperature of the precursor composition and the energetic material is dispersed therein. The metal material may be a fusible metal alloy having a melting point ranging from approximately 46° C. to approximately 250° C. The fusible metal alloy may include at least one metal selected from the group consisting of bismuth, lead, tin, cadmium, indium, mercury, antimony, copper, gold, silver, and zinc. The reactive composition may have a density of greater than approximately 2 g/cm3. The reactive composition may also include a polymer/plasticizer system.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: January 29, 2013
    Assignee: Alliant Techsystems Inc.
    Inventors: Benjamin N. Ashcroft, Daniel B. Nielson, Daniel W. Doll
  • Publication number: 20120305150
    Abstract: An explosive material in the form of a cocrystal comprising 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane (CL-20 or HNIW) and at least one energetic material. The energetic material is selected from 2,4,6-trinitrotoluene (TNT), and 1,3,5,7-tetranitro-1,3,5,7-tetrazocane (HMX).
    Type: Application
    Filed: February 8, 2012
    Publication date: December 6, 2012
    Applicant: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Adam Matzger, Onas Bolton
  • Publication number: 20120267016
    Abstract: A composition of matter capable of producing a nontoxic smoke upon combustion comprising a smoke formulation. The composition of matter further comprises an oxidizer selected from the group consisting of potassium chlorate and sodium chlorate. The smoke formulation further comprises a fuel.
    Type: Application
    Filed: June 13, 2011
    Publication date: October 25, 2012
    Inventor: John L. Lombardi
  • Patent number: 8277584
    Abstract: The present invention provides an explosive composition of substantially reduced sensitivity and low flammability, being definable as an extremely insensitive detonating substance (EIDS) according to UN Regulations for the Transport of Dangerous Goods and comprising one or more explosive material 42-58% vol., one or more fire retardant material 15-26% vol. and a binder 20-36% vol.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: October 2, 2012
    Assignee: Rafael Advanced Defense Systems Ltd.
    Inventors: Yael Cohen-Arazi, Edith Sokol, Samuel Friling, Ilan Shaked
  • Publication number: 20120234196
    Abstract: This invention relates to the construction of a rocket motor and fuel system thereof and, in particular to a new and useful Viscous Liquid Monopropellant (VLM) rocket motor containing a liquid propellant that is pumped into the combustion chamber, atomised and then ignited. The atomisation step significantly increases the surface area of the propellant, delivering faster burn rates and smoother combustion. VLM is a non-Newtonian fluid containing both oxidisers and fuels. These monopropellants are comprised of a variety of liquid and solid components, mixed together to form a homogenous fluid, although heterogeneous in composition. The solid constituents are retained within the liquid phase by dispersion, suspension, bonding or chemical emulsification techniques, so as when a motive force is applied to the propellant, all the constituents are also transported, and held in correct proportion whilst doing so.
    Type: Application
    Filed: March 14, 2012
    Publication date: September 20, 2012
    Inventors: Peter Joseph Beck, Adam Michael Berry
  • Publication number: 20120227874
    Abstract: A percussion primer composition including at least one explosive, at least fuel particle having a particle size of about 1500 nm or less, at least one oxidizer, optionally at least one sensitizer, optionally at least one buffer, and to methods of preparing the same.
    Type: Application
    Filed: April 26, 2012
    Publication date: September 13, 2012
    Inventors: Jack Erickson, Joel Lee Sandstrom, Gene Johnston, Neal Norris, Patrick Braun, Reed Blau, Lisa Spendlove Liu, Rachel Hendrika Newell
  • Publication number: 20120227877
    Abstract: A method for demilitarizing projectiles, typically military projectiles, containing a class of energetic materials known as Composition A which are wax desensitized materials. The projectiles are opened to expose the wax desensitized energetic material, which is then removed from the projectile by fluid jet technology. The wax component is separated from the energetic particles only to a degree that will leave an effective amount of desensitizing coating of wax remaining on the particles.
    Type: Application
    Filed: October 7, 2010
    Publication date: September 13, 2012
    Applicant: G.D.O., Inc
    Inventors: Duane A. Goetsch, Steven J. Schmit, Ryan M. Smith
  • Publication number: 20120227876
    Abstract: A process for recovering the energetic component from plastic bonded explosives. The process uses high velocity kinetic energy in the form of gases, liquids, or solids, alone or in combination, to cause the structural failure of the adhesive bonding between the polymer matrix and energetic component for the purpose of providing adequate loci for the solvation of the energetic component by appropriate solvents.
    Type: Application
    Filed: February 6, 2008
    Publication date: September 13, 2012
    Inventors: Paul L. Miller, Steve J. Schmit
  • Publication number: 20120199256
    Abstract: The present invention relates to suspensions of hexanitrohexaazaisowurtzitane crystals in a liquid phase (said liquid phase is composed, to at least 85% by weight, of a nonsolvent for hexanitrohexaazaisowurtzitane, said nonsolvent consisting of at least one nonflammable hydrofluoroether, and includes from 0 to less than 15% by weight of an organic solvent for hexanitrohexaazaisowurtzitane, more volatile than said nonsolvent, chosen from the group consisting of esters, nitriles, ketones and their mixtures), the production of said suspensions and their use to manufacture pyrotechnic objects. The use of said at least one hydrofluoroether as nonsolvent is particularly appropriate.
    Type: Application
    Filed: September 28, 2010
    Publication date: August 9, 2012
    Applicants: EURENCO, SME
    Inventors: Florent Muscatelli, Philippe Lescop
  • Patent number: 8231747
    Abstract: An inflator assembly having an inflator body that forms a chamber wherein a quantity of a gas generating solid reacts to form gas. A quantity of gas treatment material is included to treat the formed gas to form a treated gas. At least one assembly exit opening permits the treated gas to exit the inflator assembly. The required gas generating solid has a flame temperature of no more than 1670 K with the inflator assembly having significant weight and volume reductions as compared to an otherwise identical performing inflator assembly that utilizes gas generating composition having higher flame temperatures.
    Type: Grant
    Filed: July 29, 2009
    Date of Patent: July 31, 2012
    Assignee: Autoliv ASP, Inc.
    Inventors: Ivan V. Mendenhall, Gary K. Lund
  • Patent number: 8226782
    Abstract: A downhole device having an explosive component includes a high temperature stable explosive having thermal stability greater than 200° C.
    Type: Grant
    Filed: July 10, 2008
    Date of Patent: July 24, 2012
    Assignee: Schlumberger Technology Corporation
    Inventor: Philip Kneisl
  • Patent number: 8216401
    Abstract: Embodiments of the present subject matter provide an improved percussion primer composition and improved hot-wire igniter acceptor, wherein lead styphnate is replaced with a lead-free material, 4,6-dinitro-7-hydroxybenzofuroxan, potassium salt (KDNP). Embodiments of the percussion primer composition include KDNP, a sensitizer, an oxidizer, calcium silicide, a fuel, and a binder. Embodiments of the hot-wire igniter device include a bridgewire, an acceptor, and an output, where KDNP is the acceptor. Power supply may be in the form of constant current/voltage or current flow from a capacitor discharge. Certain embodiments utilize a variety of output formulations, such as BKNO3, black powder, and Red Dot double base propellant.
    Type: Grant
    Filed: October 6, 2011
    Date of Patent: July 10, 2012
    Assignee: Pacific Scientific Energetic Materials Company
    Inventors: John W. Fronabarger, Michael D. Williams
  • Patent number: 8211252
    Abstract: A subject matter of the present invention is: the compounds of formula (I): in which: and Het is an azolyl radical: nitroazolyl or tetrazolyl; with the exception of 3-nitro-4-(4-nitro-1,2,3-triazol-1-yl)furazan; the preparation of said compounds; and the energetic compositions including at least one compound chosen from said compounds of formula (I) and 3-nitro-4-(4-nitro-1,2,3-triazol-1-yl)furazan.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: July 3, 2012
    Assignee: Eurenco
    Inventors: Guy Jacob, Gregoire Herve, Guy Cagnon, Frederic Alvarez
  • Publication number: 20120145290
    Abstract: Embodiments of materials suitable for use as a replacement for Tetrazene and methods of preparing such materials are described. In one embodiment, the material comprises MTX-1, as well as simple salts or complexes derived therefrom. The methods of preparing such materials include combining Tetrazene and an acid to form a suspension, where the acid is nitric acid, sulfuric acid, perchloric acid, or hydrochloric acid. A nitrite salt may be added to the suspension, where the nitrite salt is sodium nitrite, lithium nitrite, potassium nitrite, an aqueous solution of sodium nitrite, an aqueous solution of lithium nitrite, or an aqueous solution of potassium nitrite. In some embodiments, the suspension is stirred until the suspension has a white appearance.
    Type: Application
    Filed: April 21, 2011
    Publication date: June 14, 2012
    Inventors: JOHN W. FRONABARGER, MICHAEL D. WILLIAMS
  • Patent number: 8197620
    Abstract: The present invention relates to a process for determining the sensitive or insensitive nature of a crystalline hexogen. Said process comprises: the formulation of said crystalline hexogen in a matrix; the analysis of a sample of said matrix charged with said crystalline hexogen by differential scanning calorimetry; said matrix consisting essentially of at least one liquid polymer that is suitable for the formulation of binders for energetic materials charged with nitro organic explosives; and of at least one adsorbent for the volatile organic compounds, which is stable at the operating temperature of the analysis and which has low affinity for water. The present invention also relates to the crystalline hexogen in such a matrix.
    Type: Grant
    Filed: June 5, 2008
    Date of Patent: June 12, 2012
    Assignee: Eurenco
    Inventors: Christian Spyckerelle, Geneviéve Eck, Jean Guillaumin
  • Publication number: 20120125493
    Abstract: A priming mixture is provided having a primary explosive and an oxidizer system containing bismuth oxide. The priming mixture generally is applicable to any application or device that employs ignition of a propellant or fuel, including, but not limited to, air bag gas generator systems, signaling devices, ejection seats, small or large arms ammunition primers, and the like.
    Type: Application
    Filed: February 1, 2012
    Publication date: May 24, 2012
    Inventors: Donald A. Pile, Henry J. John, JR.
  • Publication number: 20120118448
    Abstract: An energetic composition with controlled detonation having at least a first organic material and a second material, where the second material is a porous material (micro-, meso-, or macroporous), having a pore ratio of at least 10% and preferably greater than 50%, and the first material is, at least partially, infiltrated into the pores of the second material. A mixture containing such a composition, and a method for manufacturing such a composition and such a mixture. Additionally, a method for fragmenting or expanding a microporous immaterial at nanoscale.
    Type: Application
    Filed: October 6, 2008
    Publication date: May 17, 2012
    Applicant: INSTITUT FRANCO-ALLEMAND DE RECHERCHES DE SAINT-LOUIS
    Inventors: Marc Comet, Denis Spitzer, Vincent Pichot