| Patent Number |
Title Of Patent |
Date Issued |
| T985003 |
Synergistic light stabilizer blends for poly(vinyl chloride) polymers |
August 7, 1979 |
| tin salts formed by the reaction of di lower alkyl or aryl tin oxides and dimercapto ethyl formal and similar dimercapto compounds of the general formula ##STR1## wherein R is --(CH.sub.2).sub.m (OCH.sub.2).sub.s --O--(CH.sub.2).sub.m --(OCH.sub.2).sub.p --O--.sub.n (CH.sub.2).su |
| RE30810 |
Carbofunctional sulfur and carboxylate bridged tin compounds |
December 1, 1981 |
| Organotin compounds are prepared having (1) at least two tin atoms linked by a bridge through sulfur, carboxylate or both and containing at least two carbon atoms in the bridge, (2) directly attached to the tin atoms one to two alkyl groups containing one to eight carbon atoms and (3) a |
| D242773 |
Foam dispensing cap |
December 21, 1976 |
|
| 6084106 |
Adhesion promoters and methods of their synthesis and use |
July 4, 2000 |
| The invention relates to a new class of alkoxy silane compounds of the following general formula: ##STR1## wherein R is aliphatic or aromatic having from 1 to about 15 carbon atoms and R'comprises a hydrolyzable alkoxy functionality. These compounds are particularly useful as adh |
| 5985361 |
Robust propellant liner and interfacial propellant burn rate control |
November 16, 1999 |
| A robust polyurethane liner is disclosed for solid propellant rocket motors which is insensitive to large variations in stoichiometry, exhibits increased cohesive strength and, when used in combination with a unique two coat (wet coat) liner process described below, modifies the ballisti |
| 5844165 |
Energetic nitro malonate polyester binders |
December 1, 1998 |
| Liquid nitromalonate polyesters and methods for their preparation are disclosed. Solid propellants are provided which employ as the binder a nitromalonate polyester. These propellants are resistant to plasticizer syneresis and crystallization and provide an increase in the specific i |
| 5792981 |
Gun-launched rocket |
August 11, 1998 |
| A rocket system employing at least one rocket motor closure that includes low and high load capability retainers that, respectively, provide an insensitive munitions system during storage and positive locking of a nozzle assembly at launch. The rocket motor also includes a pressure e |
| 5771679 |
Aluminized plateau-burning solid propellant formulations and methods for their use |
June 30, 1998 |
| Solid rocket motor propellants which burn at at least one stable burn rate over at least one corresponding pressure range (i.e the burn rate v. pressure curve contains at least one area of low pressure exponent with respect to a normal curve) are described. The propellant compositions |
| 5767221 |
Robust propellant liner and interfacial propellant burn rate control |
June 16, 1998 |
| A robust polyurethane liner is disclosed for solid propellant rocket motors which is insensitive to large variations in stoichiometry, exhibits increased cohesive strength and, when used in combination with a unique two coat (wet coat) liner process described below, modifies the ballisti |
| 5763818 |
Illuminant igniter pellet ignition system for use in a decoy flare |
June 9, 1998 |
| A decoy flare ignition system is disclosed which includes an ignition initiator disposed at the aft end of the flare housing. An illuminant igniter is positioned in direct contact with the flare illuminant. The illuminant igniter includes at least one illuminant igniter pellet select |
| 5763027 |
Insensitive munitions composite pressure vessels |
June 9, 1998 |
| An insensitive composite pressure vessel for containing an energetic compound includes at least two fibers having different temperature resistance characteristics. A dynamic fiber loses a substantial portion of its tensile strength at a transformation temperature which is preferably |
| 5762746 |
Method of internally insulating a propellant combustion chamber |
June 9, 1998 |
| A composition consisting essentially of a polyphosphazene binder having the following repeating units: ##STR1## wherein n is from about 20 to about 50,000, A is selected from --O-- and --NH--, and R.sup.1 and R.sup.2 are independently selected from alkyl having from one to about |
| 5759458 |
Process for the manufacture of high performance gun propellants |
June 2, 1998 |
| A process for manufacturing a high performance gun propellant containing an energetic thermoplastic elastomeric binder and a high-energy oxidizer is disclosed. The process includes preparing or obtaining a molding powder of the high-energy oxidizer particles coated with the energetic |
| 5755401 |
Missile diverter integration method and system |
May 26, 1998 |
| A missile diverter for controlling yaw and pitch includes several valve housings secured to an inside surface of a bridge or to a removable cylinder. The valve housings are secured in aligned positions by a layer of integral cured insulation. Gas valves are placed in the housings, and |
| 5747603 |
Polymers used in elastomeric binders for high-energy compositions |
May 5, 1998 |
| Difunctional, hydroxyl-terminated polymers in which the terminal hydroxyl group is non-primary or hindered are end-capped to provide unhindered, primary, terminal hydroxyl groups which promote an improved cure and improved mechanical properties of the cured elastomer. End-capping che |
| 5741998 |
Propellant formulations based on dinitramide salts and energetic binders |
April 21, 1998 |
| Composite propellant formulations are disclosed having a dinitramide salt oxidizer, such as ammonium dinitramide, an energetic binder, such as energetically substituted oxetane and oxirane polymers, a reactive metal, such as aluminum, and other typical propellant ingredients such as |
| 5739325 |
Hydrogenolysis of 2,4,6,8,10,12-Hexabenzyl-2,4,6,8,10,12-Hexaazatetracyclo[5.5.0.0.sup.5,9 .0 |
April 14, 1998 |
| A process for the hydrogenolysis of 2,4,6,8,10,12-hexabenzyl-2,4,6,8,10,12-hexaazatetracyclo[5.5.0.0.sup.5,9.0 .sup.3,11 ]dodecane ("HBIW") is disclosed. In the process, a quantity of HBIW, a cosolvent, and a bromine source are placed into a reaction vessel. Acetic anhydride and a pal |
| 5735118 |
Using metal complex compositions as gas generants |
April 7, 1998 |
| Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a metal cation template, a neutral ligand containing hydrogen and nitrogen, and sufficient oxidizing anion to balance the charge o |
| 5735114 |
Thermostatic bimetallic retaining ring for use in rocket motor assembly |
April 7, 1998 |
| A device for safely attaching sections of a rocket motor is disclosed. The device is constructed such that if the temperature of the rocket motor is elevated to the point where ignition of the propellant within the rocket motor becomes a significant danger, the device allows the sections |
| 5731540 |
Methods of preparing gas generant formulations |
March 24, 1998 |
| Novel methods for processing gas generant compositions to produce feed stock are disclosed. The methods of the present invention include utilizing a binding agent and other additives in a mixture of ingredients of gas generant compositions in sufficient quantities that the ingredients |
| 5725699 |
Metal complexes for use as gas generants |
March 10, 1998 |
| Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a metal cation template, a neutral ligand containing hydrogen and nitrogen, and sufficient oxidizing anion to balance the charge o |
| 5723604 |
Synthesis of 2,4,6,8,10,12-hexabenzyl-2,4,6,8,10,12-hexaazatetracyclo [5.5.0.05,9.03,11]dodecane |
March 3, 1998 |
| A process of synthesizing HBIW using a mineral acid, such as perchloric acid, as the acid catalyst is disclosed. According to the process, glyoxal, adjusted to a pH from 4 to 7, and benzylamine are reacted in the presence of the mineral acid for sufficient time to form HBIW. The resu |
| 5682014 |
Bitetrazoleamine gas generant compositions |
October 28, 1997 |
| A solid composition for generating a nitrogen containing gas is provided. The composition includes an oxidizer and a non-azide fuel selected from a bitetrazoleamine or a derivative or a salt or complex thereof and mixtures thereof. The preferred bitetrazole-amine is bis-(1(2)H-tetraz |
| 5675966 |
Solid propellant dual pulse rocket motor loaded case and ignition system and method of manufactu |
October 14, 1997 |
| A solid propellant dual pulse rocket motor has a pressure vessel containing two pulse grains separated by a barrier insulator. An igniter assembly disposed at a fore end of the pressure vessel selectively ignites a first pulse grain from a central channel within the grain. The igniter as |
| 5673935 |
Metal complexes for use as gas generants |
October 7, 1997 |
| Complex generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a cationic metal template, sufficient oxidizing anion to balance the charge of the complex, and a neutral ligand containing |
| 5670098 |
Black powder processing on twin-screw extruder |
September 23, 1997 |
| A continuous process of manufacturing black powder and black powder substitute using a twin screw extruder is disclosed. Guar gum mixed with the composition at a concentration in the range from 0.05% to 0.5%, by weight, dramatically reduced the friction in the dies and permitted extr |
| 5661257 |
Multispectral covert target marker |
August 26, 1997 |
| A covert, i.e., no visible light emitted, multispectral day/night target marker is disclosed. The marker emits a signature detectable in the electromagnetic spectrum including visible, near infrared, middle and longwave infrared, and radar regions. The marker is particularly useful f |
| 5660884 |
Method of surface preparation of titanium substrates |
August 26, 1997 |
| A surface preparation process has been developed for titanium and titanium alloy substrates that greatly improves the resulting bond. The process improves bond strength, fracture toughness, durability and failure mode of adhesive bonds. The process also decreases the sensitivity of titan |
| 5654522 |
Plume enhancement nozzle for achieving flare rotation |
August 5, 1997 |
| An aerodynamically stable, kinematic flare having an enhanced plume signature is disclosed. The flare includes a housing with a flare illuminant disposed within the housing. A primary nozzle is configured in the aft wall of the housing. Four secondary nozzles are configured in the af |
| 5648556 |
Synthesis of bis(2,2-dinitropropyl)acetal (BDNPA) |
July 15, 1997 |
| A nonsolvent process of synthesizing bis(2,2-dinitropropyl)acetal (BDNPA) is disclosed. In the process, 2,2-dinitropropanol (DNPOH) is reacted at low temperature with an acetaldehyde source in the presence of an acid catalyst, such as a Lewis acid catalyst or protic acid catalyst. To |
| 5645219 |
Addition-polymerization resin systems for fiber-reinforced nozzle ablative components |
July 8, 1997 |
| The addition polymerization resin systems phthalonitrile, diethynyldiphenyl methane, phenolic triazine, and polyphosphazene are disclosed as the matrix constituent in fiber-reinforced ablative nozzle components. Various types of fibers such as carbon fibers, preferably rayon and poly |
| 5644000 |
Crystallization resistant, low modulus elastomer for flexible bearings |
July 1, 1997 |
| A low shear modulus vulcanizate for construction of flexible bearings, particularly for rocket motors, consisting essentially of a mixture of two natural or synthetic rubber copolymers, the first having about 92% cis-1,4-polyisoprene and about 8% trans-1,4-polyisoprene moieties and the |
| 5639984 |
Infrared tracer compositions |
June 17, 1997 |
| Convert infrared tracer compositions are provided. The compositions are formed using peroxide such as strontium peroxide and barium peroxide. Added to these materials is a burn rate catalyst such as boron, iron oxide, cupric oxide, manganese dioxide, carbon, silicon, graphite fibrils, |
| 5616884 |
Propellant gas-generation system for canister ejection |
April 1, 1997 |
| A propellant system is disclosed which includes a propellant applied to at least one surface of a substrate which is in the form of a strip. The propellant strip is adhesively attached to itself in a configuration which conceals propellant within the configuration and which allows the at |
| 5615983 |
Propellant grain machining device and method |
April 1, 1997 |
| An apparatus for cutting a path of propellant grain away from a solid rocket motor, The apparatus includes a telescoping arm connected to a rotatable body. A cutting tool having a primary and secondary cutter is connected to a distal end of the telescoping arm, The secondary cutter is |
| 5613358 |
Reduced cost membrane seal assembly for pulsed rocket motor |
March 25, 1997 |
| A membrane seal assembly separating forward and aft combustion chambers of a rocket motor. The assembly covers the aft surface of a bulkhead having apertures therein to preclude flow communication between the combustion chambers during combustion of propellant within the aft combustion |
| 5610364 |
Nozzle plug for plume enhancement in a kinematic flare |
March 11, 1997 |
| A decoy flare is disclosed which includes illuminant disposed within a housing. A shroud is slidably attached to the housing for deployment from a retracted position to an extended position. A plug is attached to the aft end of the shroud and is configured with a radially beveled, no |
| 5600946 |
Solid propellant dual pulse rocket motor loaded case and ignition system and method of manufactu |
February 11, 1997 |
| A solid propellant dual pulse rocket motor has a pressure vessel containing two pulse grains separated by a barrier insulator. An igniter assembly disposed at a fore end of the pressure vessel selectively ignites a first pulse grain from a central channel within the grain. The igniter as |
| 5593770 |
Chemorheologically tailored matrix resin formulations containing anhydride curing agents |
January 14, 1997 |
| Chemorheologically viscosity tailored matrix resin formulations for use in forming prepregs and composite articles are disclosed. These formulations have a specified viscosity profile obtained from a curable matrix resin and an effective amount of a reactive resin curing agent reactive a |
| 5592812 |
Metal complexes for use as gas generants |
January 14, 1997 |
| Gas generating compositions and methods for their use are provided. Metal complexes are used as gas generating compositions. These complexes are comprised of a cationic metal template, sufficient oxidizing anion to balance the charge of the complex, and a neutral ligand containing hy |
| 5591936 |
Clean space motor/gas generator solid propellants |
January 7, 1997 |
| A family of high performance, clean, space motor/gas generator solid propellants based on polyglycidyl nitrate elastomer binder, ammonium nitrate oxidizer and small amounts of aluminum and/or boron and which do not require the presence of plasticizers. A high performance, space motor |
| 5587553 |
High performance pressable explosive compositions |
December 24, 1996 |
| High solids pressable explosive compositions containing a liquid energetic polymer and a high performance explosive oxidizer are disclosed. The pressable explosive compositions contain a solids content between 91 and 99 weight percent, with an energetic polymer content less than 9 weight |
| 5587552 |
Infrared illuminating composition |
December 24, 1996 |
| Infrared illuminant compositions are disclosed which produce significant quantities of infrared radiation when burned but which produce very little visible light. The infrared illuminant compositions provide specific illumination in the spectral range visible with night vision devices. T |
| 5579635 |
Distributed erosion region rocket motor nozzle |
December 3, 1996 |
| A rocket motor nozzle has a nozzle core that defines a nozzle passage through which combustion products travel during flight. The erosive forces created by the combustion products are longitudinally distributed over the nozzle core so that the nozzle's smallest area remains substantially |
| 5579634 |
Use of controlled burn rate, reduced smoke, biplateau solid propellant formulations |
December 3, 1996 |
| Solid rocket motor propellant formulations are provided which are capable of burning at at least two selected burn rates. The burn rate is controlled by controlling the pressure at which the propellant burns. For example, it is possible to mechanically modify the container, such as a |
| 5577630 |
Composite conformable pressure vessel |
November 26, 1996 |
| A pressure vessel for holding a pressurized fluid such as compressed natural gas ("CNG") includes two end cells and zero or more interior cells. The cell geometry ensures that the cells meet one another at tangential circular surfaces, thereby reducing the tendency of adjacent cells |
| 5565645 |
High-intensity infrared decoy flare |
October 15, 1996 |
| An infrared decoy flare having enhanced infrared intensity is disclosed. The flare includes a case in which an infrared illuminant composition is disposed. The bore diameter and length of the case are advantageously selected to be compatible with preexisting chaff dispensers and their |
| 5565150 |
Energetic materials processing technique |
October 15, 1996 |
| Energetic materials are continuously processed in a twin-screw extruder to provide safe, low-cost, high quality manufacturing of pyrotechnic compositions, gun propellants, and high explosives. The energetic materials are processed by first lacquering the binder and other soluble ingr |
| 5564272 |
Slotted hybrid pressure vessel |
October 15, 1996 |
| The present invention is directed to a novel pressure vessel and process for manufacturing the pressure vessel. In one embodiment, the invention includes a case for a rocket motor which includes a cylindrical, metal shell which has been configured with a plurality of slots positioned in |
| 5554820 |
High solids rocket motor propellants using diepoxy curing agents |
September 10, 1996 |
| A PBAN-based solid rocket motor propellant which includes more than 85% or more solids is provided. Propellants of this nature are possible using the combination of diepoxide curing agents and PBAN as a binder. The curing agents include diepoxides having 4 to about 10 carbon atoms. It ha |
