Resin Contains Fluorine, Bromine Or Iodine Patents (Class 149/19.3)
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Patent number: 11414360Abstract: A smoke composition which is effective in the visible and infrared ranges and includes at least one oxidant and at least one reducing agent and at least one smoke agent generating carbon particles. This composition has superchlorinated polyvinyl chloride (C-PVC) as smoke agent, wherein the chlorine content of this smoke agent is between 57% and 70% of the weight of superchlorinated polyvinyl chloride, wherein the composition has 49% to 90% by weight of superchlorinated polyvinyl chloride (C-PVC) based on the total weight of the composition.Type: GrantFiled: March 27, 2017Date of Patent: August 16, 2022Assignee: NEXTER MUNITIONSInventors: Peggy Lamy-Bracq, Yohan Dufour
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Patent number: 11040922Abstract: A crystalline composition including an energetic material and hydrogen peroxide, both having observable electron density in a crystal structure of the composition, is provided. Methods of making the crystalline composition are also provided.Type: GrantFiled: June 29, 2018Date of Patent: June 22, 2021Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGANInventors: Adam Matzger, Jonathan C. Bennion
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Patent number: 10113843Abstract: An initiator apparatus (IA) for blasting, the apparatus including: a magnetic receiver for receiving a magnetic communication signal through the ground by detection of a magnetic field; a controller, in electrical communication with the magnetic receiver, for processing the magnetic communication signal to determine a command for blasting; and a light source in electrical communication with the controller for generating a light beam to initiate a light-sensitive explosive (LSE) in accordance with the command.Type: GrantFiled: March 23, 2015Date of Patent: October 30, 2018Assignee: Orica International Pte LtdInventors: Rodney Appleby, David Johnson, Richard Goodridge, Byron Wicks
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Patent number: 9676957Abstract: Provided is a binder composition and its use in aqueous based paints and coatings and other applications. The binder composition comprises: (a) a copolymer formed from one or more esters or amides of acrylic acid or methacrylic acid, or their mixtures, together with a monomer unit of formula I, wherein R, R1 R2, R3, R4, and X are as defined above; and (b) water, wherein the binder composition is an aqueous emulsion.Type: GrantFiled: November 13, 2013Date of Patent: June 13, 2017Assignee: ANGUS CHEMICAL COMPANYInventors: Patrick E. Brutto, George D. Green, Zhenwen Fu, Eric C. Greyson, Andrew Hejl, Jia Tang
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Patent number: 9671691Abstract: A resist composition includes (A1) a resin which includes a structural unit represented by formula (a4), a structural unit having a cyclic ether, and the resin has no acid-labile group, (A2) a resin having an acid-labile group, and an acid generator: wherein R3 represents a hydrogen atom or a methyl group, and R4 represents a C1 to C24 saturated hydrocarbon group having a fluorine atom and a methylene group contained in the saturated hydrocarbon group may be replaced by an oxygen atom or a carbonyl group.Type: GrantFiled: September 15, 2015Date of Patent: June 6, 2017Assignee: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Masahiko Shimada, Yuki Suzuki, Koji Ichikawa
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Patent number: 9610468Abstract: Compositions, devices, and methods for destroying chemical warfare agents, independent of their chemical make-up, include (i) at least one reactive metal; (ii) at least one oxidizer; and (iii) a binder. In one embodiment, the self-sustaining reactive composition includes magnesium powder, iron oxide powder, potassium perchlorate powder, and silicone gel. In another embodiment, the self-sustaining reactive composition includes manganese powder, lithium perchlorate powder, lithium peroxide powder, and silicone gel. The reactive metal(s), oxidizer(s), binder, and their respective amounts, are selected such that, following ignition of the composition, the composition is capable of producing a solid mass of ash (wicking composition) that increases the surface area of the chemical agent material and provides a site for combustion and/or thermal degradation of the chemical agent to occur.Type: GrantFiled: February 12, 2014Date of Patent: April 4, 2017Assignee: GENERAL SCIENCES, INCORPORATEDInventors: Peter Zavitsanos, Anthony Rozanski, Charles Files, Noah Stotz
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Patent number: 9452487Abstract: An exothermic cutting rod that comprises a tube and a plurality of wires. The wires may be cored wires that comprise various mixtures of powdered metals and other additives. The cored wires may be disposed within the inner circumference of the tube. The wires filled with powdered metals may allow the manufacturer to more quickly adjust the mixture ratios and develop a combination that has better performance characteristics, such as a reduced requirement of pure or substantially pure oxygen, or compressed gas.Type: GrantFiled: June 21, 2013Date of Patent: September 27, 2016Assignee: BROCO, INC.Inventors: David Dean McComb, Rodger W. Spriggs
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Publication number: 20150101719Abstract: 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.Type: ApplicationFiled: October 10, 2013Publication date: April 16, 2015Applicant: Battelle Energy Alliance, LLCInventors: Michael A. Daniels, Ronald J. Heaps, Ronald S. Wallace, Michelle L. Pantoya, Eric S. Collins
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Patent number: 8986473Abstract: 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: GrantFiled: September 3, 2008Date of Patent: March 24, 2015Assignee: The United States of America as represented by the Secretary of the NavyInventors: John M. Kelley, Robert C. Gill
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Patent number: 8894783Abstract: This invention relates to an apparatus for explosively dispersing particles of reactive metals into the atmosphere to form a fuel-air explosive. Also, this invention relates to a composition, which enhances the performance of metal augmented charge (MAC) devices. The metal augmented charge (MAC) includes flaked aluminum powder and polytetrafluorethylene. The MAC is pressed into solid billets. A preferred embodiment of the present invention involves a system with heavy-walled warhead, which comprises a canister and a cylinder of MAC disposed in the canister, so that said cylinder is in contact with the interior wall of the canister. Further, a high explosive is disposed in the cylinder with a fuze in direct contact with the high explosive, in such a way that the fuze detonates the high explosive.Type: GrantFiled: March 7, 2003Date of Patent: November 25, 2014Assignee: The United States of America as Represented by the Secretary of the NavyInventors: George P. Dixon, Eddie R. Celestine, Will Carey, Jr., Henry J. John, Jr.
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Patent number: 8568541Abstract: A reactive material that includes at least one of a fuel, an oxidizer, and a class 1.1 explosive and is formulated for use in a reactive material projectile. The reactive material is formulated to provide at least one of an overpressure of greater than approximately 9 pounds per square inch at a radial measurement of 12 inches from a point of impact on a target, a hole greater than approximately 2 square inches at an optimum penetration level in a target, and pressure, damage, and a flame when the reactive material bullet impacts a target. The fuel may be a metal, a fusible metal alloy, an organic fuel, or mixtures thereof. The oxidizer may be an inorganic oxidizer, sulfur, a fluoropolymer, or mixtures thereof. A reactive material projectile having the reactive material disposed therein is also disclosed.Type: GrantFiled: May 27, 2008Date of Patent: October 29, 2013Assignee: Alliant Techsystems Inc.Inventors: Daniel B. Nielson, Benjamin N. Ashcroft, Daniel W. Doll
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Patent number: 8118955Abstract: A thermobaric self-sustaining reactive composition, method and device for defeating chemical or biological agents includes a first material including at least one of a Group IV or Group V metal; a second material reactive with the first material in an exothermic intermetallic reaction to generate heat sufficient to vaporize a third material; and the third material that when vaporized combusts with air producing an elevated temperature sufficient to destroy the chemical and biological agents. The device includes a container having a center core explosive driver with the self-sustaining reactive composition surrounding the center core explosive driver.Type: GrantFiled: April 11, 2007Date of Patent: February 21, 2012Assignee: General Sciences IncorporatedInventors: Peter D. Zavitsanos, Anthony J. Rozanski, Thomas Manion
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Patent number: 8048241Abstract: A high energy, stable, electrically activated explosive replacement comprises at least a mixture of a metal, a highly-halogenated polymer moiety (HHPM) and a reduced (or non-) halogenated polymer moiety (RHPM). These replacements can also be used as detonators, initiators, or explosive devices alone or with other explosive systems and materials. The two polymer moieties, the HHPM and RHPM, may be provided in the following manners and generally in the following proportions. The halogen on the polymer preferably comprises chlorine or fluorine, preferably fluorine, and preferably at least 50% of halogen atoms in the polymer comprise fluorine. The fluorine is preferably provided on the polymer backbone (as in polymers formed from ethylenically unsaturated monomeric units such as tetrafluoroethylene, trifluoromonochloroethylene, difluorodichloroethylene, trichloromonofluoroethylene, trifluoroethylene, and the like).Type: GrantFiled: May 12, 2004Date of Patent: November 1, 2011Assignee: Shock Transients, IncInventor: David Davison
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Publication number: 20110168047Abstract: A missile includes a pyrotechnic charge. The missile is constructed in such a way that the pyrotechnic charge is made to burn deflagratively when the missile is used correctly. The pyrotechnic charge includes a mixture containing at least one metal or a metal alloy as a fuel and at least one metal oxide as an oxidizing agent. The fuel and the oxidizing agent are selected in such a manner that they can react with one another by burning. The mixture is compressed to a density of at least 85% of a theoretical density of the mixture, and the fuel, the oxidizing agent and a quantitative ratio between the fuel and the oxidizing agent are selected in such a manner that a density of the mixture is at least 6 g/cm3.Type: ApplicationFiled: September 10, 2010Publication date: July 14, 2011Applicant: DIEHL BGT DEFENCE GMBH & CO. KGInventor: ARNO HAHMA
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Publication number: 20100276042Abstract: 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: ApplicationFiled: January 5, 2007Publication date: November 4, 2010Applicant: ALLIANT TECHSYSTEMS INC.Inventors: Benjamin N. Ashcroft, Daniel B. Nielson, Daniel W. Doll
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Publication number: 20100089507Abstract: A thermite torch formulation that includes a metal fuel in the form of a magnalium alloy and an oxidizer in the form of MoO3. When the thermite formulation is reacted, a torch may direct at least one reaction product onto a certain region of an object to deliver a large amount of energy to that region of the object.Type: ApplicationFiled: December 14, 2009Publication date: April 15, 2010Inventors: Steven P. D'Arche, Travis Swanson, Brian Molof
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Publication number: 20090078182Abstract: Lithium fuel pellets are coated with a fluorinated oil, rather than a fluorinated polymer or telomer. The lithium pellets are coated by placing the pellets inside the lithium reaction vessel and then pouring a fluorinated oil into the reaction vessel. The reaction vessel is rotated in order to evenly coat the lithium pellets. The oil adheres to the lithium pellets and does not settle to the low point of the boiler cavity.Type: ApplicationFiled: September 20, 2007Publication date: March 26, 2009Applicant: Hamilton Sundstrand CorporationInventors: Ronald Lee Bauman, Mark A. Brege, Joel M. Kelsey
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Publication number: 20080099112Abstract: This melt-pourable explosive composition shares explosive properties comparable to those of Tritonal and is melt-pourable and castable under conditions comparable to those of Tritonal, but experiences equal or less impact, shock, and thermal sensitivity and avoids the issues of toxicity associated with trinitrotoluene. The trinitrotoluene component of Tritonal is replaced with one or more mononitro aromatic and/or dinitro aromatic melt-pourable binders, such as dinitroanisole, which may be melt poured without presenting the toxicity drawbacks experienced with the use of TNT. The melt-pourable binder may also be combined with a processing aid selected from the group consisting of alkylnitroanilines and arylnitroanilines. The composition also includes oxidizer particles, which are preferably inorganic oxidizer particles, and a reactive metallic fuel, such as aluminum.Type: ApplicationFiled: November 9, 2005Publication date: May 1, 2008Inventors: Daniel W. Doll, Jami M. Hanks, Alan G. Allred, John B. Niles
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Patent number: 6989064Abstract: The present invention provides high temperature explosive binders. More specifically, the present invention provides thermally stable polymeric binders for use in pressed explosives and suitable for environments such as the oilfield environment.Type: GrantFiled: December 19, 2002Date of Patent: January 24, 2006Assignee: Schlumberger Technology Corp.Inventor: Philip Kneisl
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Patent number: 6962634Abstract: A reactive material for use as a reactive liner in penetrating (shape-charge) warheads and for use in reactive fragments in fragmenting warheads is disclosed. The reactive material comprises an oxidizing agent and a metal filler or metal/metal oxide filler. The oxidizing agent comprises a fluoropolymer having high fluorine content, a low melt temperature, and a high mechanical strength. Preferably, the fluoropolymer is a thermoplastic fluoropolymer, such as a polymer of tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride. The metal filler comprises a high density, reactive metal. Preferably, the metal filler is hafnium or tantalum. The reactive material is safely processed at temperatures significantly below the thermal autoignition point of the reactive material.Type: GrantFiled: March 12, 2003Date of Patent: November 8, 2005Assignee: Alliant Techsystems Inc.Inventors: Daniel B. Nielson, Richard M. Truitt, Nikki Rasmussen
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Patent number: 6875294Abstract: Disclosed herein are light metal explosives, pyrotechnics and propellants (LME&Ps) comprising a light metal component such as Li, B, Be or their hydrides or intermetallic compounds and alloys containing them and an oxidizer component containing a classic explosive, such as CL-20, or a non-explosive oxidizer, such as lithium perchlorate, or combinations thereof. LME&P formulations may have light metal particles and oxidizer particles ranging in size from 0.01 ?m to 1000 ?m.Type: GrantFiled: November 12, 2002Date of Patent: April 5, 2005Assignee: The Regents of the University of CaliforniaInventors: Lowell L. Wood, Muriel Y. Ishikawa, John H. Nuckolls, Phillip F. Pagoria, James A. Viecelli
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Patent number: 6843868Abstract: A non-/low-toxic, non-hypergolic, propellant formulation generally comprising metal nanoparticles, such as boron, aluminum, or carbon, and one or more fluoro-polymers mixed in in particulate form. The present invention takes advantage of the increased surface area provided by nano-sized metallic particles to enhance the metal's combustion efficiency, or ignitability. The inclusion of fluoro-polymers also aids in increasing the combustion efficiency of the metallic nanoparticles due to the presence of halogenic oxidizers. The thermal degradation of a halogenated fluoro-polymer additive in the propellant combustion zone serves to release halogens, thereby improving the combustion of the metallic nanoparticles and increasing the propulsion system's energy output. The present invention's formulation is safe to store and handle, environmentally-friendly, and may be economically manufactured to provide for widespread, cost-effective use.Type: GrantFiled: October 23, 2003Date of Patent: January 18, 2005Assignee: The United States of America as represented by the Secretary of the NavyInventors: Christopher J. Fawls, Joel P. Fields, Kerry L. Wagaman
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Publication number: 20040256038Abstract: Disclosed herein are light metal explosives, pyrotechnics and propellants (LME&Ps) comprising a light metal component such as Li, B, Be or their hydrides or intermetallic compounds and alloys containing them and an oxidizer component containing a classic explosive, such as CL-20, or a non-explosive oxidizer, such as lithium perchlorate, or combinations thereof. LME&P formulations may have light metal particles and oxidizer particles ranging in size from 0.01 &mgr;m to 1000 &mgr;m.Type: ApplicationFiled: November 12, 2002Publication date: December 23, 2004Applicant: The Regents of the University of CaliforniaInventors: Lowell L. Wood, Muriel Y. Ishikawa, John H. Nuckolls, Phillip F. Pagoria, James A. Viecelli
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Patent number: 6783615Abstract: An insensitive high energy explosive is disclosed which can be processed on high speed loading equipment without significant buildup of explosive material on the tooling of the high speed loading equipment. The insensitive high energy explosive comprises (a) from about eighty to about ninety-six percent (80.0 to 96.0%) by weight of a high energy explosive chosen from the group comprising cyclotetramethylene tetranitramine (HMX), cyclotrimethylylene trinitramine (RDX), or hexanitrohexaazaisowurtzitane (CL-20); (b) from about two and four-tenths to about twelve percent (2.4 to 12.0%) by weight of an energetic plasticizer, preferably a 1:1 mixture of BIS 2,2-Dintropropylacetate and BIS 2,2-Dinitropropyl formal (BDNPA/F); (c) from about one and six-tenths to about eight percent (1.6 to 8.0%) by weight CAB binder system; and, (d) about one half of one percent (0.5%) fluorocarbon additive, preferable a Teflon-type additive commercially available under the Trade name Zonyl® MP 1100.Type: GrantFiled: January 29, 2003Date of Patent: August 31, 2004Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Keith Van Biert, Donald A. Geiss, Jr.
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Patent number: 6783616Abstract: The invention relates to pyrotechnic primer charges produced on the basis of metal powders or metal hydride powders, potassium perchlorate and binders. In order to obtain a homogenous mixture, the powdery components are mixed with a liquid dispersing agent in a suspension with the aid of ultrasound and dosed having said consistency. Mixing for obtaining a suspension can also be carried out directly in a casing receiving the pyrotechnic primer charges.Type: GrantFiled: November 28, 2000Date of Patent: August 31, 2004Assignee: Nico-Pyrotechnik Hanns Juergen Diederichs GmbH & Co. KGInventors: Uwe Krone, Dirk Cegiel
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Patent number: 6723190Abstract: A communication system comprises an input-output processor IOP (11) coupled to a plurality of network devices (10) and a protocol processor PP (12), both processors being coupled to a common memory (15). Memory access control means (16) resolves competition between the processors for memory access. Normally, if one of the two processors is accessing the memory, the memory control unit (16) allows that access to be completed before allowing the other processor to access the memory. But if data loss in a network device is imminent, the IOP, is granted a higher priority memory access, the memory access controller aborts (interrupts) any memory access by the PP, allowing the IOP to access the memory immediately.Type: GrantFiled: October 27, 2000Date of Patent: April 20, 2004Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert C. Gill, Carl Gotzmer, Pamela Carpenter, Eric Schlegel
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Publication number: 20040050466Abstract: The present invention provides high temperature explosive binders. More specifically, the present invention provides thermally stable polymeric binders for use in pressed explosives and suitable for environments such as the oilfield environment.Type: ApplicationFiled: December 19, 2002Publication date: March 18, 2004Inventor: Philip Kneisl
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Patent number: 6679960Abstract: The present invention is directed to EDE (Energy Dense Explosives), wherein particles of a reducing metal and a metal oxide are dispersed throughout a conventional high explosive. When the resulting EDE is detonated, the reducing metal and the metal oxide combine in an exothermic redox reaction at a speed on the order of a detonation speed of the conventional explosive. The resulting formulation has higher mass per unit volume and energy per unit volume densities than the conventional high explosive alone. Sizes of the reducing metal particles and metal oxide particles and proximities of the particles to each other within the conventional explosive can be adjusted to tailor blast characteristics of a munition, for example to result in a time-pressure curve having a desired shape and duration.Type: GrantFiled: April 25, 2001Date of Patent: January 20, 2004Assignee: Lockheed Martin CorporationInventor: John W. Jones
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Patent number: 6675716Abstract: A method for decoying an infrared seeker comprising the steps of providing a plurality of small pyrotechnic pellets, igniting the pellets and dispersing the pellets.Type: GrantFiled: August 25, 1980Date of Patent: January 13, 2004Assignee: The United States of America as represented by the Secretary of the NavyInventor: Melvin P. Nadler
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Patent number: 6635130Abstract: A pyrotechnic active material for producing IR-radiation is proposed. An active material according to the invention contains fuel (preferably magnesium) which combines with fluorine in a strongly exergonic reaction (for example Li, Be, Mg, Ca, Sr, Ba, Ti, Zr, Hf, B, Al and alloys thereof) and poly-(carbon monofluoride) ((—CFx—)n) (x=0.6-1.2) as an oxidation agent. Compositions according to the invention further contain VITON® as a polymeric binding agent and graphite for reduction of the electrostatic sensitivity. A process for producing those compositions is also provided.Type: GrantFiled: January 10, 2003Date of Patent: October 21, 2003Assignee: Diehl Munitionssysteme GmbH & Co. KGInventor: Ernst-Christian Koch
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Publication number: 20030150535Abstract: A pyrotechnic active material for producing IR-radiation is proposed. An active material according to the invention contains fuel (preferably magnesium) which combines with fluorine in a strongly exergonic reaction (for example Li, Be, Mg, Ca, Sr, Ba, Ti, Zr, Hf, B, Al and alloys thereof) and poly-(carbon monofluoride) ((—CFx—)n) (x=0.6−1.2) as an oxidation agent. Compositions according to the invention further contain VITON® as a polymeric binding agent and graphite for reduction of the electrostatic sensitivity. A process for producing those compositions is also provided.Type: ApplicationFiled: January 10, 2003Publication date: August 14, 2003Applicant: Diehl Munitionssysteme GmbH & Co. KGInventor: Ernst-Christian Koch
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Patent number: 6547993Abstract: A process for making a Teflon/aluminum composite includes providing Teflon powder and aluminum powder wherein a size of Teflon particles is about 7 to 12 times a size of aluminum particles; mixing the Teflon powder with the aluminum powder on about a 3 to 1 weight basis; pressing the mixed powder into a shape at a pressure ranging from about 6000 psi to about 16000 psi; and then sintering the pressed shape.Type: GrantFiled: May 9, 2001Date of Patent: April 15, 2003Assignee: The United States of America as represented by the Secretary of the NavyInventor: Vasant S. Joshi
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Publication number: 20030015265Abstract: The present invention is directed to EDE (Energy Dense Explosives), wherein particles of a reducing metal and a metal oxide are dispersed throughout a conventional high explosive. When the resulting EDE is detonated, the reducing metal and the metal oxide combine in an exothermic redox reaction at a speed on the order of a detonation speed of the conventional explosive. The resulting formulation has higher mass per unit volume and energy per unit volume densities than the conventional high explosive alone. Sizes of the reducing metal particles and metal oxide particles and proximities of the particles to each other within the conventional explosive can be adjusted to tailor blast characteristics of a munition, for example to result in a time-pressure curve having a desired shape and duration.Type: ApplicationFiled: April 25, 2001Publication date: January 23, 2003Inventor: John W. Jones
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Patent number: 6485586Abstract: A low burning rate, high temperature incendiary composition having a reactive material of titanium, a second reactive material of boron, an oxidizer of polytetrafluoroethylene in an amount of from about 20 weight percent or greater of the composition and a binder of paraffin wax in an amount of from about 5 weight percent to about 20 weight percent. The composition is safe to handle, ignites readily, burns at a low and controlled rate and produces a very high flame temperature.Type: GrantFiled: October 27, 2000Date of Patent: November 26, 2002Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert C. Gill, Carl Gotzmer, Pamela Carpenter, Eric Schlegel
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Publication number: 20020117242Abstract: An extrudable black body decoy flare composition which, when combusted, provided black body radiation is disclosed. The compositions generally include from about 40% to about 70% metal such as magnesium or aluminum, from about 10% to about 40% polytetrafluoroethylene, and from about 8% to about 30% binder. Important to the operation of the invention is the production of carbon upon combustion of the composition. Accordingly, polyaromatic thermoplastics, such as polystyrene and dimethyl phthalate, serve as the binder.Type: ApplicationFiled: December 14, 2000Publication date: August 29, 2002Applicant: CORDANT TECHNOLOGIES INC.Inventors: Daniel B. Nielson, Dean M. Lester
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Patent number: 6432231Abstract: An extrudable black body decoy flare composition which, when combusted, provided black body radiation is disclosed. The compositions generally include from about 40% to about 70% metal such as magnesium or aluminum, from about 10% to about 40% polytetrafluoroethylene, and from about 8% to about 30% binder. Important to the operation of the invention is the production of carbon upon combustion of the composition. Accordingly, polyaromatic thermoplastics, such as polystyrene and dimethyl phthalate, serve as the binder.Type: GrantFiled: December 14, 2000Date of Patent: August 13, 2002Assignee: Alliant Techsystems Inc.Inventors: Daniel B. Nielson, Dean M. Lester
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Patent number: 6409854Abstract: A high temperature incendiary composition having a reactive material of titanium, a second reactive material of boron, an oxidizer of polytetrafluoroethylene in an amount of from about 10 weight percent or less of the composition and a binder of carboxyl-terminated polybutadiene acrylonitrile in an amount of from about 5 weight percent or more. The composition is safe to handle, ignites readily, burns at a low and controlled rate and produces a very high flame temperature.Type: GrantFiled: October 27, 2000Date of Patent: June 25, 2002Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert C. Gill, Carl Gotzmer, Pamela Carpenter, Eric Schlegel
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Patent number: 6402864Abstract: A high temperature incendiary composition having a reactive material of titanium, a second reactive material of boron, an oxidizer of polytetrafluoroethylene in an amount of from about 20 weight percent or greater of the composition and a binder of CTBN in an amount of from about 10 weight percent or less. The composition is safe to handle, ignites readily, produces low slag, burns at a low and controlled rate and produces a very high flame temperature.Type: GrantFiled: October 27, 2000Date of Patent: June 11, 2002Assignee: The United States of America as represented by the Secretary of the NavyInventors: Robert C. Gill, Carl Gotzmer, Pamela Carpenter, Eric Schlegel
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Patent number: 6325876Abstract: A compound has the structure of 3,3-bis(difluoroamino)-1,5-dinitratopentane and is useful in energetic materials.Type: GrantFiled: March 2, 2000Date of Patent: December 4, 2001Assignee: The United States of America as represented by the Secretary of the NavyInventors: Horst G. Adolph, Nirupam J. Trivedi
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Patent number: 6309484Abstract: A propellent charge powder for barrel-type weapons having a plasticizer on the basis of nitramine and nitrocellulose, nitramine and energetic and non-energetic plastic binders, or nitrocellulose or an explosive, and wherein the plasticizer is a mixture of at least two chemically different dinitro diaza compounds. The plasticizer facilitates the production and use of the propellent charge powder possessing a low temperature coefficient.Type: GrantFiled: July 30, 1999Date of Patent: October 30, 2001Assignee: Diehl Stiftung & Co.Inventors: Walter Langlotz, Dietmar Müller
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Patent number: 6174391Abstract: Storage-stable metal-fueled pyrotechnics and methods for manufacturing such compositions are provided. These are manufactured by granulating a mixture of liquid cyclohexane, powdered metal fuel, optional Teflon® powder, and at least one ethylene and vinyl acetate co-polymer, together to form a storage stable powdered metal fuel effectively coated with ethylene and vinyl acetate co-polymer. This provides pyrotechnics with superior resistance to degradation induced by atmospheric moisture, and having other improved properties. The powdered metal fuel includes, for example, powdered magnesium.Type: GrantFiled: August 30, 1999Date of Patent: January 16, 2001Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Gary Chen, Russell Broad, Rene W. Valentine, Gregory S. Mannix