Abstract: Hybrid, high-performance propellant combinations for a rocket engine are described, characterized by being constituted by a combination of polyglycidyl axide (GAP) ([C.sub.3 H.sub.5 N.sub.3 O].sub.n), poly-3,3-bis(azidomethyl)oxetane (BAMO) ([C.sub.4 H.sub.6 N.sub.6 O].sub.n) or hydroxy-terminated polybutadiene (HTPB) with hydrazinium nitroformate (N.sub.2 H.sub.5 C(NO.sub.2).sub.3) as a solid oxidizer and pentaborane (B.sub.5 H.sub.9) or diborane (B.sub.2 H.sub.6) as a fuel, together with other conventional additives.

Abstract: Method for coating boron particles with a thin ceramic layer. The method provides for thermal decomposition of a hydrocarbon gas in the presence of the boron particles. The coated particles are useful in fuels, giving improved combustion in solid propellant and ramjet fuels.

Abstract: The disclosure relates to a pyrotechnical delay charge which may be mixed in water, comprising4-17% by weight of boron (B)0-17% by weight of zirconium (Zr), titanium (Ti) and/or zirconium-nickel alloys10-35% by weight of titanium dioxide (TiO.sub.2)40-65% by weight of tin dioxide (SnO.sub.2), and0.5-10% by weight of chlorinated rubberand possibly up to 3% by weight of an aqueous dispersible acrylate binder.The chlorinated rubber component is a particularly characteristic feature of this pyrotechnical charge and is included as a phlegmatization and burning rate reducing agent.

Abstract: Metals are made pyrophoric by diffusing aluminum or zinc into them and then leaching it out, or by reacting with aluminum and then leaching aluminum out. Powdered aluminum and powdered nickel, iron or cobalt, can thus be carried on an elongated support web and reacted by heating for a few seconds to a few minutes, after which leaching will provide elongated pyrophoric foil suitable for decoying heat-seeking missile.

Abstract: A nitrogen-generating composition useful for inflating air bags to protection for occupants of motor vehicles is disclosed which is composed of a stable nitride resistant to high temperatures and an inorganic oxidizing agent.

Abstract: The disclosure relates to a method of producing pyrotechnical charges by mixing and granulating the included components in water, a considerable advantage from the point of view of safety. The method according to the invention also makes it possible to vary the percentage concentration of the included components so that the obtained pyrotechnical charges can either be used as delay charges or as ignition charges. Since, moreover, an acrylate binder is included, they will obtain superior mechanical strength properties.

Abstract: Low alloy steel tubes are decarburized, heavily diffusion chromized and heavily diffusion aluminized to protect them against sulfidation. For the diffusion they can be supported upright with one end on layer of diffusion-coating pack on floor of a retort. Surface portions that are to be welded are covered with masking layer that prevents diffusion coating, or with inert layer that reduces the amount of coating. Diffusion aluminizing can also be applied to foils and powder to make pyrophoric product after leaching out much of the introduced aluminum. Powder can also be diffusion boronized. Pyrophoric boron-containing iron or nickel powder mixed with Ba(NO.sub.3).sub.2 will ignite to cause generation of large quantity of NO.sub.2 gas, and generation is improved when powdered boron and/or oxidizer like NaClO.sub.3 is added.

Abstract: In order to achieve a stable burn characteristic, improved mechanical proties and reduced smoke development during burn, a composite solid propellant includes nitrides, borides, and carbonitrides of the metals zirconium, titanium, tungsten, hafnium, tantalum, or niobium as a burn moderator.

Abstract: Metals like iron and nickel are pyrophorically activated by continuous or batch treatment. Activated metal can be coated with material that increases, or tempers by partial blocking, pyrophoric action. Pyrophoric powder can be compacted with ignitable powders or fibers to produce self-supporting bodies having different degrees of pyrophoric activity.

Abstract: A solid fuel for generating H.sub.2 or D.sub.2 gases, comprising magnesium orohydride diammoniate (MBDA) or its deuterated analog as the H.sub.2 or D.sub.2 source, an oxidizer selected from LiNO.sub.3 and KNO.sub.3, and a binder of polytetrafluoroethylene is a thermally stable gas generator composition which yields greater than 12.5 weight percent H.sub.2 or D.sub.2. The MBDA weight percentages by weight ranges from 80-90, the oxidizer ranges from 5-15, and the binder ranges from 2-15.

Abstract: High energy composition which is meant for propellants, pyrotechnical and technical compositions, explosives or corresponding items, and production method.

Abstract: Amorphous boron powder is chemically passivated by treatment with certain alcohols so as to form stable borate esters on the surface so as to render the boron unreactive or compatible with hydroxyl-functional pre-polymers. The treated or passivated boron is used in the manufacture of hydroxyl-terminated poly-butadiene matrix castable solid fuels and propellants.

Abstract: A priming composition with an elevated thermal stability, which is sensit to percussion, is disclosed. The priming composition comprises a tetrazolic ring containing primary explosive and a sensitivity additive. The sensitivity additive comprises an oxidizing agent and a reducing agent. 40 to 95 weight percent of the priming composition is the primary explosive, 2.5 to 40 weight percent of the priming composition is the oxidizing agent and 2.5 to 40 weight percent of the priming composition is the reducing agent. The priming composition is applied to heads of percussion fuses.

Abstract: A mixture of about from 60 to 40 percent amorphous boron and about from 94 to 60 percent ferric oxide, useful as an ignition composition for electrically actuated blasting caps and squibs, has outstanding thermal stability, i.e., up to about 500.degree. C. making it especially suitable for use in blasting caps in oil wells that are deep and hot, e.g., in the liquid-disabled cap described in U.S. patent application Ser. No. 469,954. Bridgewire-sensitive compositions containing about from 10 to 20 percent boron are preferred. The compositions can be self-grained, or they may be grained preferably with a water-soluble polymeric binder.

Abstract: Solid reactant hydrogen gas generator formulations which yield greater than 5 weight percent hydrogen of greater than 98 mole percent hydrogen purity are formulated of a primary heat and hydrogen source selected from ammonia borane from about 50 to about 70 weight percent and hydrazine bisborane from about 0-30.00 weight percent, a first hydrogen-containing compound that functions as an auxiliary heat and hydrogen source consisting of ammonium nitrate from about 10.20 to about 17.82 weight percent, and a second hydrogen-containing compound that functions as an auxiliary heat and hydrogen source consisting of (NH.sub.4).sub.2 B.sub.10 H.sub.10 from about 9.80 to about 17.18 weight percent.

Abstract: In a thermite igniter/heat source comprising a container holding an internal igniter load, there is provided the improvement wherein the container consists essentially of consumable consolidated thermite having a low gas output upon combustion, whereby upon ignition, substantially all of the container and said load is consumed with low gas production.

Abstract: Compositions capable of exothermic reaction in the condensed state are prepared by pressing a mixture of powders comprising a reactive metal such as titanium, boron carbide and, optionally, carbon (e.g., graphite and/or lampblack) and boron. With moderately fine particle size of boron carbide (about -400 mesh), sustainer compositions are formed. With considerably finer particle size of boron carbide (about -800 mesh), booster compositions are formed. A preferred composition consists essentially of about 67 to 79% titanium, about 13 to 30% boron carbide, up to about 10% carbon and up to about 10% boron.

Abstract: This invention refers to a pyrotechnical delay charge, i.e. a pyrotechnical charge having a very well defined rate of burning. Similar delay charges are generally used in military fuses of various types. The delay charge according to the invention is distinguished by its components and their proportions relative to each other. Within the framework of the limits stated in the patent claims, the delay charges rate of burning can be varied from approximately 2 to approximately 30 mm/s. Characteristic for this delay charge is primarily that it contains more than 10% by weight tin dioxide (SnO.sub.2) which acts as an oxidizer and slag former.

Abstract: A pyrotechnic missile which includes a body, first and second pyrotechnic eets disposed on said body, and an autoigniter mounted on the body for igniting the pyrotechnic sheets. The combination of pyrotechnic sheets are adapted to yield an abundance of electrons while burning in a vacuum. The first pyrotechnic sheet includes a binder, cesium dichromate, cesium nitrate, boron, and a metal fuel. The second pyrotechnic sheet includes a binder, cesium nitrate, and a metal fuel. The autoignitor is adapted to ignite in response to heat due to air friction.

Abstract: Disclosed is an all amine borane gas generating system which consists of razine bis-borane or its deuterated derivative in the form of a compacted solid propellant pellet which serves as the thermal stimulus for the decomposition of itself. An all amine borane gas generating system which additionally consists of diborane diammoniate or its deuterated derivative provides a higher yield of hydrogen or deuterium with a higher purity from a self-sustaining reaction after the self-sustaining reaction is initiated by a heat source (e.g., an electrically heated nichrome wire) sufficient to initiate the reaction. This all amine borane gas generating system which consists of N.sub.2 H.sub.4.2BH.sub.3 and H.sub.2 B(NH.sub.3).sub.2 BH.sub.4 is in the form of a compacted solid propellant pellet. The pellets are formed to the desired configuration employing pressures from about 500 to about 10,000 pounds total load. The solid propellant pellets are useful as a H.sub.2 or D.sub.2 generation sources for fuels for lasers.

Abstract: This invention relates to novel nitramine propellant compositions for guns nd rockets.

Abstract: Disclosed is a process for the recovery of carborane from reject solid prllant. The process comprises slicing or shredding into small pieces the solid propellant under water, screening the propellant to remove water from the propellant, performing a pentane extraction of the carborane from the small pieces of propellant, diluting the carborane/pentane solution with additional pentane and the carborane/pentane solution to remove small particles of propellant and other solids such as ammonium perchlorate, allowing the filtering effluent of carborane/pentane solution to enter a water wash tank at the bottom to remove ammonium perchlorate and other water soluble propellant materials, allowing the carborane/pentane layer to separate from the water layer, and then siphoning the carborane/pentane solution from the water layer, and distilling the pentane to separate and recover the carborane.

Abstract: 1. A novel composition of matter comprising a mixture of pentaborane and s (difluoroamino) fluoromethane.

Abstract: A novel composite explosive comprised of conventional explosive material and a mixture of boron and at least one other metal is disclosed. The other metal must be capable of exothermically reacting with boron to produce intermetallic compound and an energy release of at least about 1.0 kcal/gm. In a preferred embodiment of the composite explosive, pellets of a stoichiometric mixture of boron and titanium are mixed with cyclotetramethylenetetranitramine (HMX). By mixing the boron and at least one other metal which forms an intermetallic compound with boron in an exothermic reaction wherein the heat energy release is at least about 1.0 kcal/gm and adding a conventional explosive material to the mixture, there is an improved method of forming a mass of hot or molten particles in an environment when the conventional explosive is detonated.

Abstract: A process which comprises heating a stabilized solution of borane in tetrahydrofuran containing an organic sulfide and finely divided particles of sodium fluoroborate at an elevated temperature for a period of time sufficient to convert the sodium fluoroborate particles to a form which permits them to be readily removed from the solution such as by settling, filtration or centrifugation.

Abstract: This invention relates to a combustible sabot and process for its preparan for a spinning tubular projectile. This combustible sabot is prepared in such a way and of such materials that it combusts spontaneously while exiting the gun barrel. The sabot is fabricated from an anhydride cured epoxy binder, boron, molybdenum trioxide, ammonium perchlorate and a metallic fuel selected from either aluminum or magnesium in the presence of a catalyst.

Abstract: A method for reducing radar attenuation caused by the formation of free etrons in the exhaust plume of a combusting high impulse rocket propellant which comprises contacting a microwave attenuation reducing additive having at least one element selected from the group consisting of Groups IIIA, IVA, VB, VIB, VIIB and VIII of the Periodic Table with said high impulse propellant. A novel propellant composition characterized by its combustion of low microwave attenuation properties. A class of additives useful for reducing the microwave attenuation characteristics of high impulse propellants.

Abstract: A mixture of at least two particulate metals capable of undergoing an exothermic reaction to form an intermetallic compound is provided to sustain decomposition of borane reactants to yield hydrogen or deuterium.

Abstract: An improved pyrotechnic fuel composition comprising a metal fuel and a contional pyrotechnic oxidizer for producing light, heat, smoke and sound through an exothermic reaction wherein the improvement comprises the use of a metal hydride as the fuel ingredient to produce a pyrotechnic composition which readily ignites and which has a lower burning rate for increased luminous intensity. The metal hydride fuel is preferably selected from the group consisting of magnesium hydride, titanium hydride, sodium borohydride and a lithium aluminum hydride.

Abstract: Improved green flare compositions which retain acceptable dominant waveleh and purity and produce efficiencies up to about 11,000 cd-s/g. The flare compositions contain magnesium, barium nitrate, boron and a binder.

Abstract: Mixtures of alkali metal azides, metal and metalloid oxides, molybdenum disulfide and optionally sulfur are easily pressed into pellets, are rapid, stable and cool burners and give high purity cool nitrogen gas. The compositions are useful in applications such as automotive crash bag inflators and the like.

Abstract: This invention relates to amino-substituted guanidine decahydrodecaborates, which are shown to be novel boron-containing salts that have particular utility as high energy monopropellants. The invention includes the diamino-guanidinium and mono-aminoguanidinium salts of decahydrodecaboric acid, and as preferred products of processes for preparing same.

Abstract: This invention describes pyrotechnic compositions made by suitably combining, preferably by coprecipitation, triaminoguanidine nitrate with bis-triaminoguanidinium decahydrodecaborate. Propellants comprising these compounds are also included.

Abstract: A solid propellant gas generator system employing borane compounds of the formula (CH.sub.3).sub.x H.sub.4-x NB.sub.3 H.sub.8 as the primary hydrogen source and a metallic complexing agent to trap the carbon molecules as solid metallic carbides.

Abstract: This invention relates to amino-substituted guanidine decahydrodecaborates, hich are shown to be novel boron-containing salts that have particular utility as high energy monopropellants. The invention includes the diamino-guanidinium and monoaminoguanidinium salts of decahydrodecaboric acid, and as preferred products of processes for preparing same.

Abstract: The use of a class or compounds known as amine-boranes and their derivati in solid propellants to produce or generate hydrogen or deuterium upon combustion.

Abstract: A fuel-rich solid propellant gas generator is provided containing about 50 to 70% by weight of a boron fuel and about 30 to 50% by weight of an energetic binder containing a polymer of a dinitrofluoromethyl epoxide of the formula ##STR1## wherein R is alkylene of 1 to 4 carbon atoms.

Abstract: New propellant compositions characterized by the addition of certain simple salts and double salts, both metallic and non-metallic, having the B.sub.10 H.sub.10.sup.-2 anion in common, are taught herein to function as a class of burn rate catalysts, and not as fuels, when combined with a category of propellants known as nitrocellulose base propellants. Additionally, unique forms of the simple salts, created by coprecipitation of the simple salt with an oxidizer, constitute a third class of burn rate enhancers herein.

Abstract: A class of high burning propellants, useful as gun or rocket propellants, gas generators or specialized application where a very high burning rate is required, characterized by replacing the normally found oxidizer used in various propellants with certain coprecipitated salts of decahydrodecaboric acid and certain oxidizing agents. The resultant propellants employ such a coprecipitate as the major faction of the solids loading, and optionally may further include certain simple decahydrodecaborate salts for further enhancement of the burning rates in the thusly formulated and composed propellants.

Abstract: This invention relates to novel pyrotechnic materials useful in pyrotechnic, incendiary, and propellant compositions, and a method of their preparation. The process is characterized by being a cocrystalization of certain salts of decahydrodecaboric acid and certain oxidizing agents, the resulting coprecipitates are compositions chemically and physically distinct from the starting materials.

Abstract: Carboranylmethyl alkyl sulfides are disclosed along with propellant compoions which employ the sulfides as plasticizers. The propellant compositions using the carboranylmethyl alkyl sulfides yield high burning rates and possess good physical properties at high and low temperatures. Processability of the propellants are good and the quality of the propellants are quite attractive. Representative of the carboranylmethyl alkyl sulfides (CB plasticizers) are carboranylmethyl ethyl sulfide (CMES), carboranylmethyl n-propyl sulfide (CMPS), carboranylmethyl n-butyl sulfide (CMBS), carboranylmethyl iso-butyl sulfide (CMIBS), and carboranylmethyl iso-propyl sulfide (CMIPS). Mixture and eutectic mixtures of the carboranylmethyl alkyl sulfides are also employed. Eutectic mixtures of CMPS and CMES (20 to 80%) yield very low-melting-point plasticizers which are very attractive for propellants subjected to low temperature environments.

Abstract: Carboranylmethyl alkyl sulfides are disclosed along with a process for prration which process involves reacting decaborane with the propargyl alkyl sulfide in cyclohexane.

Abstract: This invention relates to bis-triaminoguanidine decahydrodecarborate, which is a novel boron salt that has been found to have particular utility as a high energy monopropellant. The invention includes the triaminoguanidinium salt of decahydrodecaboric acid, and as a product of a preferred process for preparing same.

Abstract: A smoke producing composition comprised of about 50 percent of phosphorus, etween 37 and 44 percent of calcium sulfate, between 3 and 10 percent of boron and about 3 percent of a binder.

Abstract: A process for the preparation of an explosive delay composition consisting substantially of barium chromate and one or more fuels wherein the barium chromate is co-precipitated from solution at an elevated temperature in the presence of a suspension of fuel in a finely divided form so that the fuel is substantially incorporated in the barium chromate crystal or aggregate of crystals.

Abstract: This invention describes pyrotechnic compositions made by suitably combining, preferably by coprecipitation, triaminoguanidine nitrate with bis-triaminoguanidinium decahydrodecaborate. Propellants comprising these compounds are also included.

Abstract: This invention teaches a method and the resultant product of preparing consolidated propellant charges that incorporate an integral ignition compound, specifically certain simple salts of decahydrodecaboric acid and coprecipitates of these salts with an oxidizer. The charges so prepared exhibit substantially improved ignition and breakup compared to untreated charges, especially at low temperature, because each of the individual consolidated grains are surrounded by the salts taught herein.

Abstract: A method of preparing high burning rate solid propellant grains that have od mechanical properties and the high burning rate solid propellant grains prepared from a multimodal blend of at least one ultra-high burning rate propellant that has been cured and ground to a predetermined particle size of from about 100 microns (0.1 millimeter) to about 5 millimeters and at least one uncured propellant composition that has high tensile strength and compatibility with the ultra-high burning rate propellant and that serves as a binder for the solid propellant grain when cured. The solid propellant grain which has good mechanical and physical properties and a high burning rate burns with a flame that moves through the grain as a plane wave. Even though the individual components have different burning rates, it is the rate of the plane wave through the grain that is controlled by the averaging of the rate of burning through each of the particles of the multimodal blend and the binder propellant.

Abstract: A fuel for rocket motors is provided in the form of a slurry of particulate metal or metalloid particles having a particle size of about 0.1 to 10 microns suspended in an alcohol having from 1 to 3 carbon atoms in the presence of a non-thixotropic amount of high viscosity grade hydroxypropyl cellulose.

Abstract: This invention teaches preparation of individual and uncoated propellant grains by incorporating a coating or integral layer of ignition compound, specifically simple salts of decahydrodecaboric acid and coprecipitates of these salts with an oxidizer. The resulting propellant grains so prepared exhibit substantially improved ignition capability, virtually independent of ambient conditioning temperature conditions at the time of use.