Inorganic Oxygen-halogen Salt Patents (Class 149/42)
  • Patent number: 4128442
    Abstract: A non-aqueous slurry explosive composition comprising an oxidizing salt component, a fuel component, methanol and a metal nitrate or perchlorate soluble in the methanol. Such compositions are highly sensitive and useful in the form of small diameter cartridges.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: December 5, 1978
    Assignee: AECI Limited
    Inventor: Kenneth N. Barlow
  • Patent number: 4116131
    Abstract: A case bonded end burning solid propellant rocket motor utilizing a propellant having sufficiently low modulus to avoid chamber buckling on cooling from cure and sufficiently high elongation to sustain the stresses induced without cracking, the propellant being zone cured within the motor case at high pressures equal to or approaching the pressure at which the motor will operate during combustion. A solid propellant motor having a burning time long enough that its spacecraft would be limited to a maximum acceleration of less than 1 g is provided by one version of the case bonded end burning solid propellant motor of the invention.
    Type: Grant
    Filed: May 13, 1970
    Date of Patent: September 26, 1978
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: John I. Shafer, Harold E. Marsh, Jr.
  • Patent number: 4115165
    Abstract: A sensitizing agent for explosive compositions is provided which comprises particulate aluminum coated with a finely divided hydrophobic fumed silica. Upon incorporation of the hydrophobic material coated aluminum into an aqueous gel explosive composition, relatively large air bubbles, as compared to the size of the individual particles of aluminum, form adjacent the surface of the aluminum. The resulting sensitizing complex includes a relatively large air bubble in close proximity to particulate aluminum, thereby providing a combination which imparts greater sensitivity to the explosive composition.
    Type: Grant
    Filed: June 23, 1977
    Date of Patent: September 19, 1978
    Assignee: Atlas Powder Company
    Inventor: Oldrich Machacek
  • Patent number: 4115166
    Abstract: This patent describes a solid oxidizer for solid rocket propellants comprising small ammonium perchlorate particles containing thereon a coating agent which is applied during the process of grinding larger ammonium perchlorate particles under an inert liquid medium.
    Type: Grant
    Filed: January 12, 1970
    Date of Patent: September 19, 1978
    Assignee: Aerojet-General Corporation
    Inventors: Edwin L. Lista, Richard B. Hartupee, Ralph K. Manfred, Paul L. O'Neil
  • Patent number: 4104092
    Abstract: Gelled explosive compositions, sensitized with water-in-oil explosive emulsions, are provided which do not require high explosive sensitizing agents and which contain oxidizing salts, water, gelling agents, and, optionally, bulking agents and fuels, as well as from about 1 to about 80 percent by weight of a water-in-oil explosive emulsion sensitizer which can be of the cap sensitive or cap insensitive variety.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: August 1, 1978
    Assignee: Atlas Powder Company
    Inventor: John J. Mullay
  • Patent number: 4098626
    Abstract: Salicylate esters have been found to be suitable blocking agents for polyisocyanates, enabling preparation of hydroxy terminated polybutadiene based polyurethane bound propellant grains having extended pot life. Unblocking occurs readily at normal propellant cure temperatures, allowing normal cure rates.
    Type: Grant
    Filed: November 15, 1976
    Date of Patent: July 4, 1978
    Assignee: Thiokol Corporation
    Inventors: William Hardin Graham, Inella Gatlin Shepard
  • Patent number: 4096003
    Abstract: A water gel explosive composition and process for preparing the same is provided which comprises an oxidizer, water, a gelling agent, and a crosslinker, and wherein the improvement comprises including therein from about 1 to about 10 weight percent of at least one amine nitrate sensitizer selected from the group comprising lower alkyl and alkanol amine nitrates and from about 1 to about 10 weight percent of an aluminum sensitizer having a surface area per unit weight of from about 3 to about 9 square meters per gram, said weight percentages based upon the total weight of the explosive composition.
    Type: Grant
    Filed: June 10, 1977
    Date of Patent: June 20, 1978
    Assignee: Atlas Powder Company
    Inventor: Oldrich Machacek
  • Patent number: 4090893
    Abstract: A new combination of bonding agents when employed in hydroxy-terminated pbutadiene propellant compositions yields greatly improved high temperature aging characteristics and greatly improved low temperature physical properties for the compositions. The combination or bonding agent system consists of MT4 (reaction product of 2.0 moles of tris 1(2 methylaziridinyl)phosphine oxide, 0.7 mole adipic acid, and 0.3 mole tartaric acid); HX752 (bis isophthaloyl 1(2 methyl)aziridine); and BIDE (butyliminodiethanol) in a weight percent range of the propellant composition of 0.10% to 0.20%, 0.10% to 0.20% and 0.02% to 0.05% respectively.
    Type: Grant
    Filed: October 11, 1977
    Date of Patent: May 23, 1978
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Marjorie T. Cucksee, Henry C. Allen
  • Patent number: 4080227
    Abstract: The disclosure relates to thermosetting molding compounds and more particularly to a pyrotechnic filled thermosetting compound comprising a blend of unfilled diallyl phthalate molding powder and a pyrotechnic mixture.
    Type: Grant
    Filed: June 6, 1977
    Date of Patent: March 21, 1978
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Lawrence W. Hartzel, George E. Kettling
  • Patent number: 4062709
    Abstract: A fluorocarbon bound rocket propellant grain provided with a compatible burn inhibitor on selected areas, particularly the outer surface, which is inexpensive and simple to apply.
    Type: Grant
    Filed: September 25, 1968
    Date of Patent: December 13, 1977
    Inventors: Victor F. Castaneda, Homer L. Davis
  • Patent number: 4057442
    Abstract: A method for safe, relatively air-pollution free disposal of pyrotechnic compositions is disclosed. High percentage recoveries of the inorganic oxidizer and metallic fuel are achieved, resulting in significant cost benefits, while using a minimum of energy.
    Type: Grant
    Filed: March 29, 1976
    Date of Patent: November 8, 1977
    Assignee: Thiokol Corporation
    Inventors: Graham C. Shaw, Emil A. Lawton, Leon L. Jones
  • Patent number: 4033264
    Abstract: Processes whereby water based explosive compositions comprising inorganic oxygen releasing salt material and a synthetic polymeric gelling agent may be converted to a cartridged form and wherein the cartridge container is based on paper are described. The preparation of gelled water bearing systems, especially water based explosive compositions comprising inorganic oxygen releasing salt material, containing gelling agents derived from synthetic polymeric material and a redox system is also described.
    Type: Grant
    Filed: April 16, 1975
    Date of Patent: July 5, 1977
    Assignee: ICI Australia Limited
    Inventors: Frederick Bolza, Lubos Vojtech Sadek, Richard Fox
  • Patent number: 4026738
    Abstract: A foamed or aerated water gel explosive composition devoid of any self-explosive sensitizer is provided which is sensitive to detonation in charge diameters greater than 5.1 cm. The explosive composition retains sensitivity for long periods. The migration or collapse of air or gas entrained in the composition is substantially prevented by incorporating a blend of a foaming surfactant and a stabilizing surfactant in chosen proportions.
    Type: Grant
    Filed: April 19, 1976
    Date of Patent: May 31, 1977
    Assignee: Canadian Industries, Ltd.
    Inventor: Jean Paul Richard
  • Patent number: 4023994
    Abstract: 1. A solid composite type propellant composition comprising as a base propellant an oxidizer, a metallic fuel and fuel binder and between 0.1 and 10% by weight of a ferrocene plasticizer that is selected from the group consisting of mono- and di-substituted ferrocenes wherein the substituents are selected from the group consisting of --R, --COR, --CO.sub.2 R, --CH(OH)R, and --CH(R'CO.sub.2)R wherein R and R' are selected from the group consisting of alkyl, cycloalkyl, alkenyl and cycloalkenyl radicals, the carbon chains of which may be interrupted by oxygen.
    Type: Grant
    Filed: September 9, 1963
    Date of Patent: May 17, 1977
    Assignee: Thiokol Corporation
    Inventor: William F. Arendale
  • Patent number: 4011117
    Abstract: A method for effecting the cure of poly(glycidyl 2,2-dinitro-2-fluoroethoxide) by utilizing tris (B-isocyanoethyl) nitromethane as a curing agent.
    Type: Grant
    Filed: May 23, 1974
    Date of Patent: March 8, 1977
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: George A. Lo, Milton B. Frankel
  • Patent number: 4001059
    Abstract: 1. A compound selected from the group consisting of 1,2,3-tris(difluoroamino)-cyanopropane, 1-cyano-2,3,5,6-tetrakis(difluoramino)hexane, 1-cyano-2,3,6,7-tetrakis(difluoramino)heptane, and mixtures of 1-cyano-bis(difluoramino)pentenes.5. Mixtures of 1-cyano-bis(difluoramino)pentenes.
    Type: Grant
    Filed: May 24, 1963
    Date of Patent: January 4, 1977
    Assignee: Rohm and Haas Company
    Inventor: Robert C. Petry
  • Patent number: 3977924
    Abstract: Cooled gas generating solid propellant, includes sodium azide or lithium de as a nitrogen gas source, a fluorocarbon binder material, a combustion catalyst, and alkaline metal acid salt coolant.
    Type: Grant
    Filed: April 1, 1974
    Date of Patent: August 31, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Charles R. McCulloch, Gerald L. MacKenzie
  • Patent number: 3968139
    Abstract: 1. Compounds of the general formula ##EQU1## in which R.sup.2 is selected from the group consisting of ##EQU2## 6. A process for the preparation of compounds of the general formula in which R.sup.2 is as defined in claim 1, which comprises nitrating, with a mixture of sulfuric and nitric acids, diols of the general formula ##EQU3## in which R.sup.2 is as defined in claim 1.
    Type: Grant
    Filed: October 30, 1962
    Date of Patent: July 6, 1976
    Assignee: Rohm and Haas Company
    Inventor: Samuel Franklin Reed, Jr.
  • Patent number: 3957550
    Abstract: A flame-explosion couple is disclosed which upon ignition burns for a period of time in a relatively stable manner and thereafter explodes to produce fragments which continue to burn for a further period of time. The composition may comprise from 40 to 89 percent by weight of a volatile liquid fuel, from 10 to 50 percent by weight of a secondary explosive or strong metal salt oxidizer and from 0.5 to 5 percent by weight of an explosive primer. It is usually desirable to incorporate a gellant in the composition to give it a jellylike consistency of a desired viscosity. The composition may optionally contain combustible metal powders and combustible polymers.
    Type: Grant
    Filed: September 13, 1966
    Date of Patent: May 18, 1976
    Assignee: Thiokol Corporation
    Inventors: Stanley Tannenbaum, Clyde J. Poulin
  • Patent number: 3954531
    Abstract: Composite-modified double base propellants containing aluminum as a metal el having ferric fluoride added as a combustion catalyst, a thermal stabilizer and an aid in reducing exhaust plume interference with a radar guidance system.
    Type: Grant
    Filed: June 14, 1973
    Date of Patent: May 4, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Theodore F. Comfort
  • Patent number: 3951706
    Abstract: 7. A process for preparing a solid propellant composition having a plateau-burning rate comprising the steps ofA. mixing at room temperature the following ingredients until a viscous binder results:Ingredients Percent by weight ______________________________________ High energy plasticizer selected from 15 to 85 the group consisting of pentaerythritol trinitrate, diethylene glycol dinitrate, trimethylolethane trinitrate and mixtures thereof Ingredients Percent by weight ______________________________________ Plastisol nitrocellulose 10 to 50 Ethyl centralite .4 to 5; ______________________________________B. blending into said binder, until a homogeneous pourable mixture result a cured propellant composition which has been milled to an average particle size of about 30 mesh, said composition consisting essentially of the following ingredientsIngredients Percent by weight ______________________________________ Nitrocellulose 13.5 to 27.5 Nitroglycerin 10.5 to 22.5 Additives .
    Type: Grant
    Filed: July 3, 1962
    Date of Patent: April 20, 1976
    Inventor: Judson B. Eldridge
  • Patent number: 3951705
    Abstract: A blue-burning pyrotechnic tracer mix which provides a smoke trail even ar the blue flame is no longer visible to thus extend the visible range of the projectile in which the mixture is employed, the pyrotechnic mixture comprising by weight percent: 6-10% potassium perchlorate, 11-18% magnesium, 10-20% cupric chloride anhydrous, 35-45% barium nitrate, 12-18% hexachlorobenzene, 5-10% sulfur.
    Type: Grant
    Filed: May 14, 1975
    Date of Patent: April 20, 1976
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Dennis J. Mancinelli, Walter J. Puchalski
  • Patent number: 3940297
    Abstract: A stable, gelled, water-bearing explosive composition and a process for making same. The composition comprises at least one water-soluble inorganic oxygen releasing salt; at least one fuel; water; and at least one gum selected from the group consisting of galactomannans and xanthans crosslinked in situ with a crosslinking agent comprising a redox system which system comprises at least one arsenious compound.
    Type: Grant
    Filed: November 5, 1973
    Date of Patent: February 24, 1976
    Assignee: ICI Australia Limited
    Inventor: Frederick Bolza
  • Patent number: 3936330
    Abstract: Disclosed is a pyrotechnic composition and a method for the inflation of passive restraint systems, i.e., crash bags. The method utilizes gases produced by the ignition and burning of a pyrotechnic composition containing an alkali metal azide, a metal halide and an inorganic perchlorate.
    Type: Grant
    Filed: August 8, 1973
    Date of Patent: February 3, 1976
    Assignee: The Dow Chemical Company
    Inventors: Thomas E. Dergazarian, George A. Lane
  • Patent number: 3933543
    Abstract: A gas-generating composition comprising an oxidizer, a non-metal, preferably organic, fuel component, and a metal fuel staple component of a particular size.
    Type: Grant
    Filed: January 15, 1964
    Date of Patent: January 20, 1976
    Assignee: Atlantic Research Corporation
    Inventor: Dale A. Madden
  • Patent number: 3932240
    Abstract: Solid rocket propellants which utilize hydroxy terminated polybutadiene as he binder and a reactive burn-rate catalyst selected from 4, 4-diferrocenyl-1-pentanol and 3, 3-diferrocenylbutyl isocyanate are disclosed. The burn-rate catalysts are chemically bound to the binder to prevent migration.
    Type: Grant
    Filed: June 4, 1973
    Date of Patent: January 13, 1976
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: John D. Braun, Arnold Nielsen, M. Frank Pickett, Ronald Henry, William P. Norris