US3122462A - Novel pyrotechnics - Google Patents

Novel pyrotechnics Download PDF

Info

Publication number
US3122462A
US3122462A US154909A US15490961A US3122462A US 3122462 A US3122462 A US 3122462A US 154909 A US154909 A US 154909A US 15490961 A US15490961 A US 15490961A US 3122462 A US3122462 A US 3122462A
Authority
US
United States
Prior art keywords
percent
sodium azide
weight
nan
potassium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US154909A
Inventor
Martin H Kaufman
Julian S Davidson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US154909A priority Critical patent/US3122462A/en
Application granted granted Critical
Publication of US3122462A publication Critical patent/US3122462A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B45/00—Compositions or products which are defined by structure or arrangement of component of product
    • C06B45/04—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive
    • C06B45/06—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component
    • C06B45/10—Compositions or products which are defined by structure or arrangement of component of product comprising solid particles dispersed in solid solution or matrix not used for explosives where the matrix consists essentially of nitrated carbohydrates or a low molecular organic explosive the solid solution or matrix containing an organic component the organic component containing a resin
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B35/00—Compositions containing a metal azide

Definitions

  • the present invention relates to novel pyrotechnics, and more particularly a pyrotechnic composition utiliz ing safe-to-handle azides.
  • the general purpose of this invention is to provide a pyrotechnic composition which has improved intensity, burning rate, color value and efficiency in light production. Also because pyrotechnic compositions are low explosives and must withstand loading operations, handling, and storage, other important characteristics which this invention provides are insensitivity to static, low impact and friction sensitivity, igniti bility, stability, and low hygroscopicity.
  • An object of the present invention is the provision of a pyrotechnic composition which has low sensitivity to impact and is therefore safe to prepare and handle.
  • Another object is to provide a pyrotechnic composition which may be used at high altitude, e.g., as an igniter or flare.
  • a further object of the invention' is the provision of a pyrotechnic composition which will produce hot metallic compounds that react easily with oxygen or a halogen.
  • the initial work which led to the present invention was done with purified sodium azide (NaN and potassium azide (KN intimately mixed with various elements including silicon, boron, aluminum, titanium, zirconium, magnesium. All ignited when touched with a hot wire. Silicon mixtures were found to ignite easily and the reaction sustained itself to apparent completion. Aluminum and sodium azide mixtures, containing as low as 5% sodium azide ignited easier than aluminum alone and the burning sustained itself. The reaction continued at a faster rate than that of aluminum powder alone. As increasing quantities of sodium azide were incorporated, faster ignition and reaction rates were realized.
  • the oxygen oxidizer or halogen oxidizer may be part of a polymer or plastic material like Kel-F or Teflon, polyvinylidine fluoride, or copolymer of vinylidine fluoride and perfluoropropylene or other halogen containing polymers.
  • Polymers containing oxidizer groups such as polynitroethylene may be used. Examples of typical pyrotechnic formulations of those investigated are as follows:
  • Example VIII Silicon (Si) 45 Sodium azide (NaN 45 Barium nitrate [Ba(NO This mixture is difficult to sustain burning.
  • Example XI Aluminum (Al) 45 Sodium azide (NaN 45 Potassium perchlorate (KCIO 10 This mixture is fast burning. Examples I-XI were tested at an initial pressure of 705 mm. Hg and at ambient temperatures.
  • Example XV Magnesium (Mg) 9.6 Sodium azide (NaN 48.0 Kel-F (powder) 38.5 Binder (Kel-F elastomer) 3.9
  • Examples XII through XXI a number of fluorocarbons were used. Among those found satisfactory were Viton A and AHV, Kel-F wax, Kel-F elastomer, Fluorel, Teflon, and Teflon 100.
  • Viton is the tradename for a rubbery copolymer of vinylidene fluoride and perfluoropropylene.
  • Fluorel is asimilar copolymer of perfluoropropylene and vinylidene fluoride.
  • Teflon is the tradename for a homopolymer of tetrafluoroethylene and the same as polytetrafluoroethylene, while Teflon 100 is a copolymer of tetrafluoroethylene and perfluoropropylene.
  • Kel-F wax is a homopolymer of chlorotrifluoroethylene and Kel-F elastomer is a copolymer of chlorotrifluoroethylene and vinylidene fluoride.
  • Examples XII-XXI not only ignited very rapidly, but burned very rapidly as well. These mixtures are stable to fairly high temperatures, (at least 250 C.) which increases handling safely.
  • a pyrotechnic composition consisting essentially of about 9.6 percent by weight magnesium, about 48 percent by weight sodium azide, about 38.5 percent by 5 weight of a homopolymer of chlorotrifluoroethylene and about 3.9 percent by weight of a copolymer of chlorotrifiuoroethylene and vinylidene fluoride.
  • a pyrotechnic composition consisting essentially of about 26.5 percent by weight boron, about 53.1 percent by weight sodium azide, and about 20.4 percent by weight of a homopolymer of tetrafluoroethylene.
  • a pyrotechnic composition consisting essentially of about 75.1 percent by weight zirconium, about 18 percent by weight sodium azide, and about 6.9 percent by weight of a copolymer of vinylidene fluoride and perfluoropropylene.
  • a pyrotechnic composition consisting essentially of about 47.4 percent by weight aluminum, about 38 percent by weight sodium azide, about 9 percent by weight of the copolymer of tetralluoroethylcne and perfluoropropylenc and about 5.6 percent of a homopolymer ot' chlorolrifiuoroethylene.
  • a pyrotechnic composition consisting essentially of about 26 to about 75 percent by weight of an element selected from the group consisting of silicon, boron, aluminum, titanium, zirconium and magnesium; about 18 to about 54 percent by weight alkali azide selected from the group consisting of lithium, sodium and potassium azides; and about 14 to about 42 percent by weight of a member selected from the group consisting of a copolymer of vinylidene fluoride and perfluoropropylene, a homopolymer of tetrafiuoroethylene, a copolymer of tetrafluoroethylene and perfluoropropylene; a homopolymer of chlorotrifiuoroethylene, and a copolymer of chlorotrifluoroethylene and vinylidene fluoride and mixtures thereof.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Molecular Biology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Air Bags (AREA)

Description

as we 3,122,462 NOVEL PYROTECHNICS Martin H. Kaufman, 411-A Nimitz, China Lake, Calif.,
(Granted under Title 35, US. Code (1952), sec. 266) The invention described herein may be manufactured and used by or for the Government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.
The present invention relates to novel pyrotechnics, and more particularly a pyrotechnic composition utiliz ing safe-to-handle azides.
In the field of pyrotechnics two criteria, rate of reaction and energy liberated per unit weight or volume, are generally of great importance in devising new pyro technics. Although many elements are and have been used as essential ingredients of various pyrotechnics, the use of many reactive elements such as lithium, sodium, potassium, rubidium and cesium has been severly limited because their reactivities are often too great. The present invention is for novel pyrotechnics the composition of which will provide reactive species.
The general purpose of this invention is to provide a pyrotechnic composition which has improved intensity, burning rate, color value and efficiency in light production. Also because pyrotechnic compositions are low explosives and must withstand loading operations, handling, and storage, other important characteristics which this invention provides are insensitivity to static, low impact and friction sensitivity, igniti bility, stability, and low hygroscopicity.
An object of the present invention is the provision of a pyrotechnic composition which has low sensitivity to impact and is therefore safe to prepare and handle.
Another object is to provide a pyrotechnic composition which may be used at high altitude, e.g., as an igniter or flare.
A further object of the invention'is the provision of a pyrotechnic composition which will produce hot metallic compounds that react easily with oxygen or a halogen.
Other objects and many of the attendant advantages of this invention will be readily appreciated as the same becomes better understood by reference to the following detailed description.
The initial work which led to the present invention was done with purified sodium azide (NaN and potassium azide (KN intimately mixed with various elements including silicon, boron, aluminum, titanium, zirconium, magnesium. All ignited when touched with a hot wire. Silicon mixtures were found to ignite easily and the reaction sustained itself to apparent completion. Aluminum and sodium azide mixtures, containing as low as 5% sodium azide ignited easier than aluminum alone and the burning sustained itself. The reaction continued at a faster rate than that of aluminum powder alone. As increasing quantities of sodium azide were incorporated, faster ignition and reaction rates were realized. To test the action in the presence of a minimum of air, a mixture of fine aluminum powder and sodium azide in the ratio of 81 to 65 was packed in an open end cardboard tube 3,122,462 Patented Feb. 25, 1964 Similar reactions may be postulated for other elements. Substituting boron for aluminum in reaction (1) 186 kcal. would be produced or 1.9 kcaL/ gram compared with 1.2 kcal./ gram for aluminum.
As a result of this work it was found feasible to prepare mixtures which when ignited, would produce alkali metal vapors simply by using an excess of alkali azide, e.g., lithium, sodium or potassium azides, and that it was possible to produce an atmosphere of hot oxygen simply by adding to the mixture an excess of oxygen in the form ofa solid oxygen containing oxidizer which decomposes easily at the temperatures reached by these reactions. Oxidizers other than the oxygen containing variety may be incorporated, e.g., halogen containing materials. The oxygen oxidizer or halogen oxidizer may be part of a polymer or plastic material like Kel-F or Teflon, polyvinylidine fluoride, or copolymer of vinylidine fluoride and perfluoropropylene or other halogen containing polymers. Polymers containing oxidizer groups such as polynitroethylene may be used. Examples of typical pyrotechnic formulations of those investigated are as follows:
Example 1 Percent Aluminum (Al) 49.9 Sodium azide (NaN 40.0 Potassium permanganate (KMnO 10.1
This mixture showed fast ignition withhot wire.
Example ll Boron (B) 29.9 Potassium azide (KN 60.1 Potassium permanganate (KMnO 10.0
This mixture showed rapid ignition.
Example Ill Zirconium (Zr) 68.5 Sodium azide.(NaN 16.4 Potassium permanganate (KMnO 15.1
This mixture exhibited rapid ignition.
Example IV Boron (B) 63.75 Sodium azide (NaN 21.25 Barium nitrate [Ba(NO 15.00
, This mixture exhibited very rapid ignition.
Example V Boron (B) 71.25 Sodium azide (NaN 23.75 Potassium perchlorate (KClO 5.0
This mixture exhibited very rapid ignition.
Example VI This mixture was almost immediately explosive.
Example VIII Silicon (Si) 45 Sodium azide (NaN 45 Barium nitrate [Ba(NO This mixture is difficult to sustain burning.
Example IX Magnesium (Mg) 45 Potassium azide (KN 45 Potassium perchlorate (KCIO 10 This mixture is difficult to sustain burning.
Example X Boron (B) 32 Sodium azide (NaN 58 Potassium nitrate (KNO 10 This mixture is fast burning.
Example XI Aluminum (Al) 45 Sodium azide (NaN 45 Potassium perchlorate (KCIO 10 This mixture is fast burning. Examples I-XI were tested at an initial pressure of 705 mm. Hg and at ambient temperatures.
Example XII Boron (B) 27 Potassium perchlorate (KClO 10.1 Sodium azide (NaN 54.9 Binder (Viton A) 8 Example XIII Boron (B) 28.7 Potassium perchlorate (KClO 10.7 Potassium azide (KN 57.3 Binder (Kel-F elastomer) 3.3
Example XIV Boron (B) 19.0 Potassium perchlorate 6.9 Sodium azide (NaN 56.1 Kel-F (powder) 12.5 Binder (Fluorel) 5.5
Example XV Magnesium (Mg) 9.6 Sodium azide (NaN 48.0 Kel-F (powder) 38.5 Binder (Kel-F elastomer) 3.9
Example XVI Aluminum (Al) 38.4 Sodium azide (NaN 38.4 Kel-F (powder) 19.2 Binder (Viton A) 4.0
Example XVII Boron (B) 38 Potassium azide (KN 38 Teflon powder 24 It is postulated that the above reaction may be illustrated by the following equation:
4 Example XVIII Percent Aluminum (Al) 38.4 Sodium azide (NaN 38.4 Binder (fluorocarbon) 23.2 Example XIX Boron (B) 26.5 Sodium azide (NaN 53.1 Teflon (powder) 20.4 Example XX Zirconium (Zr) 75.1 Sodium azide (NaN 18.0 Viton 6.9 Example XXI Aluminum (Al) 47.4 Sodium azide (NaN 38.0 Teflon 100 9.0 Kel-F wax 5.6
In Examples XII through XXI a number of fluorocarbons were used. Among those found satisfactory were Viton A and AHV, Kel-F wax, Kel-F elastomer, Fluorel, Teflon, and Teflon 100.
Viton is the tradename for a rubbery copolymer of vinylidene fluoride and perfluoropropylene. Fluorel is asimilar copolymer of perfluoropropylene and vinylidene fluoride. Teflon is the tradename for a homopolymer of tetrafluoroethylene and the same as polytetrafluoroethylene, while Teflon 100 is a copolymer of tetrafluoroethylene and perfluoropropylene. Kel-F wax is a homopolymer of chlorotrifluoroethylene and Kel-F elastomer is a copolymer of chlorotrifluoroethylene and vinylidene fluoride.
Examples XII-XXI not only ignited very rapidly, but burned very rapidly as well. These mixtures are stable to fairly high temperatures, (at least 250 C.) which increases handling safely.
An additional advantage to safety is the relative stability to impact exhibited by all the mixtures. Examples IV and VI when struck with the flat end of a hammer on a flat piece of steel were almost completely insensitive to such treatment. Example XV which contains no oxygen oxidizer, would not ignite or explode at all regardless of hammer force.
All these pyrotechnic samples (I-XXI) were handmixed by means of mortar and pestle. Only high temperatures above 250 C. set them olf.
Various modifications are contemplated and may obviously be resorted to by those skilled in the art without departing from the spirit and scope of the invention as hereinafter defined by the appended claims.
What is claimed is:
1. A pyrotechnic composition consisting essentially of about 9.6 percent by weight magnesium, about 48 percent by weight sodium azide, about 38.5 percent by 5 weight of a homopolymer of chlorotrifluoroethylene and about 3.9 percent by weight of a copolymer of chlorotrifiuoroethylene and vinylidene fluoride.
2. A pyrotechnic composition consisting essentially of about 26.5 percent by weight boron, about 53.1 percent by weight sodium azide, and about 20.4 percent by weight of a homopolymer of tetrafluoroethylene.
3. A pyrotechnic composition consisting essentially of about 75.1 percent by weight zirconium, about 18 percent by weight sodium azide, and about 6.9 percent by weight of a copolymer of vinylidene fluoride and perfluoropropylene.
4. A pyrotechnic composition consisting essentially of about 47.4 percent by weight aluminum, about 38 percent by weight sodium azide, about 9 percent by weight of the copolymer of tetralluoroethylcne and perfluoropropylenc and about 5.6 percent of a homopolymer ot' chlorolrifiuoroethylene.
5. A pyrotechnic composition consisting essentially of about 26 to about 75 percent by weight of an element selected from the group consisting of silicon, boron, aluminum, titanium, zirconium and magnesium; about 18 to about 54 percent by weight alkali azide selected from the group consisting of lithium, sodium and potassium azides; and about 14 to about 42 percent by weight of a member selected from the group consisting of a copolymer of vinylidene fluoride and perfluoropropylene, a homopolymer of tetrafiuoroethylene, a copolymer of tetrafluoroethylene and perfluoropropylene; a homopolymer of chlorotrifiuoroethylene, and a copolymer of chlorotrifluoroethylene and vinylidene fluoride and mixtures thereof.
References Cited in the file of this patent UNITED STATES PATENTS 1,174,669 Buell Mar. 7, 1916 2,105,674 Sosson Jan. 18, 1938 2,900,242 Williams et al Aug. 18, 1959 2,968,917 Whaley Jan. 24, 1961 2,981,616 Boyer Apr. 25, 1961 2,995,431 Bice Aug. 8, 1961 3,027,283 Bice Mar. 27, 1962

Claims (1)

1. A PYROTECHNIC COMPOSITION CONSISTING ESSENTIALLY OF ABOUT 9.6 PERCENT BY WEIGHT MAGNESIUM, ABOUT 48 PERCENT BY WEIGHT SODIUM AZIDE, ABOUT 38.5 PERCENT BY WEIGHT OF A HOMOPOLYMER OF CHLORITRIFLUOROETHYLENE AND ABOUT 3.9 PERCENT BY WEIGHT OF A COPOLYMER OF CHLOROTRIFLUOROETHYLENE AND VINYLIDENE FLUORIDE.
US154909A 1961-11-24 1961-11-24 Novel pyrotechnics Expired - Lifetime US3122462A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US154909A US3122462A (en) 1961-11-24 1961-11-24 Novel pyrotechnics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US154909A US3122462A (en) 1961-11-24 1961-11-24 Novel pyrotechnics

Publications (1)

Publication Number Publication Date
US3122462A true US3122462A (en) 1964-02-25

Family

ID=22553325

Family Applications (1)

Application Number Title Priority Date Filing Date
US154909A Expired - Lifetime US3122462A (en) 1961-11-24 1961-11-24 Novel pyrotechnics

Country Status (1)

Country Link
US (1) US3122462A (en)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463682A (en) * 1967-02-13 1969-08-26 Joseph T Hamrick High temperature composite propellant system
US3475237A (en) * 1968-07-01 1969-10-28 Dow Chemical Co Boron fuel-salt smoke-producing compositions
US3519505A (en) * 1967-03-01 1970-07-07 Space Ordnance Systems Inc Ignition material containing tellurium dioxide,boron and fluoropolymeric binder
US3779823A (en) * 1971-11-18 1973-12-18 R Price Abrasion resistant gas generating compositions for use in inflating safety crash bags
US3785674A (en) * 1971-06-14 1974-01-15 Rocket Research Corp Crash restraint nitrogen generating inflation system
US3833432A (en) * 1970-02-11 1974-09-03 Us Navy Sodium azide gas generating solid propellant with fluorocarbon binder
US3875864A (en) * 1973-10-04 1975-04-08 Us Army External tracer projectile
US3883373A (en) * 1972-07-24 1975-05-13 Canadian Ind Gas generating compositions
US3959043A (en) * 1966-03-08 1976-05-25 The Secretary Of State For Defence In Her Brittanic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Primary explosives containing nitrated polybasic lead salt and boron
US3977924A (en) * 1974-04-01 1976-08-31 The United States Of America As Represented By The Secretary Of The Navy Coolant additives for nitrogen generating solid propellants
US3996079A (en) * 1973-12-17 1976-12-07 Canadian Industries, Ltd. Metal oxide/azide gas generating compositions
FR2599361A1 (en) * 1986-05-27 1987-12-04 Survilliers Nle Cartoucherie Pyrotechnic composition for an igniter and safety electrical ignition device, igniter and ignition device thus obtained
USRE32584E (en) * 1972-05-31 1988-01-26 Talley Industries, Inc. Method and composition for generating nitrogen gas
US5401340A (en) * 1993-08-10 1995-03-28 Thiokol Corporation Borohydride fuels in gas generant compositions
US5429691A (en) * 1993-08-10 1995-07-04 Thiokol Corporation Thermite compositions for use as gas generants comprising basic metal carbonates and/or basic metal nitrates
US5439537A (en) * 1993-08-10 1995-08-08 Thiokol Corporation Thermite compositions for use as gas generants
US5462306A (en) * 1993-01-21 1995-10-31 Trw Inc. Gas generator for vehicle occupant restraint
US5472647A (en) * 1993-08-02 1995-12-05 Thiokol Corporation Method for preparing anhydrous tetrazole gas generant compositions
US5500059A (en) * 1993-08-02 1996-03-19 Thiokol Corporation Anhydrous 5-aminotetrazole gas generant compositions and methods of preparation
US5592812A (en) * 1994-01-19 1997-01-14 Thiokol Corporation Metal complexes for use as gas generants
US5672843A (en) * 1994-10-05 1997-09-30 Ici Americas Inc. Single charge pyrotechnic
US5725699A (en) * 1994-01-19 1998-03-10 Thiokol Corporation Metal complexes for use as gas generants
US20050067074A1 (en) * 1994-01-19 2005-03-31 Hinshaw Jerald C. Metal complexes for use as gas generants
US6969435B1 (en) 1994-01-19 2005-11-29 Alliant Techsystems Inc. Metal complexes for use as gas generants
US20150239794A1 (en) * 2012-08-31 2015-08-27 Armtec Defense Products Co. Ignition compositions, and preparations and uses thereof
AU2013206584B2 (en) * 2012-08-09 2018-03-08 Diehl Defence Gmbh & Co. Kg High-intensity active composition for a pyrotechnic decoy with a fluorinated carbon compound

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1174669A (en) * 1913-10-21 1916-03-07 Winchester Repeating Arms Co Priming charge.
US2105674A (en) * 1935-08-29 1938-01-18 Ici Ltd Delay action detonator and fuse and delay composition for use therein
US2900242A (en) * 1958-12-16 1959-08-18 Williams Harry Igniter for gas generator grains and propellants
US2968917A (en) * 1954-05-06 1961-01-24 Ethyl Corp Method of operating a jet engine and fuel composition
US2981616A (en) * 1956-10-01 1961-04-25 North American Aviation Inc Gas generator grain
US2995431A (en) * 1958-06-20 1961-08-08 Phillips Petroleum Co Composite ammonium nitrate propellants containing boron
US3027283A (en) * 1958-12-29 1962-03-27 Phillips Petroleum Co Solid composite propellant containing halogenated olefin

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1174669A (en) * 1913-10-21 1916-03-07 Winchester Repeating Arms Co Priming charge.
US2105674A (en) * 1935-08-29 1938-01-18 Ici Ltd Delay action detonator and fuse and delay composition for use therein
US2968917A (en) * 1954-05-06 1961-01-24 Ethyl Corp Method of operating a jet engine and fuel composition
US2981616A (en) * 1956-10-01 1961-04-25 North American Aviation Inc Gas generator grain
US2995431A (en) * 1958-06-20 1961-08-08 Phillips Petroleum Co Composite ammonium nitrate propellants containing boron
US2900242A (en) * 1958-12-16 1959-08-18 Williams Harry Igniter for gas generator grains and propellants
US3027283A (en) * 1958-12-29 1962-03-27 Phillips Petroleum Co Solid composite propellant containing halogenated olefin

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959043A (en) * 1966-03-08 1976-05-25 The Secretary Of State For Defence In Her Brittanic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Primary explosives containing nitrated polybasic lead salt and boron
US3463682A (en) * 1967-02-13 1969-08-26 Joseph T Hamrick High temperature composite propellant system
US3519505A (en) * 1967-03-01 1970-07-07 Space Ordnance Systems Inc Ignition material containing tellurium dioxide,boron and fluoropolymeric binder
US3475237A (en) * 1968-07-01 1969-10-28 Dow Chemical Co Boron fuel-salt smoke-producing compositions
US3833432A (en) * 1970-02-11 1974-09-03 Us Navy Sodium azide gas generating solid propellant with fluorocarbon binder
US3785674A (en) * 1971-06-14 1974-01-15 Rocket Research Corp Crash restraint nitrogen generating inflation system
US3779823A (en) * 1971-11-18 1973-12-18 R Price Abrasion resistant gas generating compositions for use in inflating safety crash bags
USRE32584E (en) * 1972-05-31 1988-01-26 Talley Industries, Inc. Method and composition for generating nitrogen gas
US3883373A (en) * 1972-07-24 1975-05-13 Canadian Ind Gas generating compositions
US3875864A (en) * 1973-10-04 1975-04-08 Us Army External tracer projectile
US3996079A (en) * 1973-12-17 1976-12-07 Canadian Industries, Ltd. Metal oxide/azide gas generating compositions
US3977924A (en) * 1974-04-01 1976-08-31 The United States Of America As Represented By The Secretary Of The Navy Coolant additives for nitrogen generating solid propellants
FR2599361A1 (en) * 1986-05-27 1987-12-04 Survilliers Nle Cartoucherie Pyrotechnic composition for an igniter and safety electrical ignition device, igniter and ignition device thus obtained
US5462306A (en) * 1993-01-21 1995-10-31 Trw Inc. Gas generator for vehicle occupant restraint
US5472647A (en) * 1993-08-02 1995-12-05 Thiokol Corporation Method for preparing anhydrous tetrazole gas generant compositions
US5500059A (en) * 1993-08-02 1996-03-19 Thiokol Corporation Anhydrous 5-aminotetrazole gas generant compositions and methods of preparation
US5501823A (en) * 1993-08-02 1996-03-26 Thiokol Corporation Preparation of anhydrous tetrazole gas generant compositions
US5682014A (en) * 1993-08-02 1997-10-28 Thiokol Corporation Bitetrazoleamine gas generant compositions
US5429691A (en) * 1993-08-10 1995-07-04 Thiokol Corporation Thermite compositions for use as gas generants comprising basic metal carbonates and/or basic metal nitrates
US5439537A (en) * 1993-08-10 1995-08-08 Thiokol Corporation Thermite compositions for use as gas generants
US5401340A (en) * 1993-08-10 1995-03-28 Thiokol Corporation Borohydride fuels in gas generant compositions
US5673935A (en) * 1994-01-19 1997-10-07 Thiokol Corporation Metal complexes for use as gas generants
US5592812A (en) * 1994-01-19 1997-01-14 Thiokol Corporation Metal complexes for use as gas generants
US5725699A (en) * 1994-01-19 1998-03-10 Thiokol Corporation Metal complexes for use as gas generants
US5735118A (en) * 1994-01-19 1998-04-07 Thiokol Corporation Using metal complex compositions as gas generants
US6481746B1 (en) 1994-01-19 2002-11-19 Alliant Techsystems Inc. Metal hydrazine complexes for use as gas generants
US20050067074A1 (en) * 1994-01-19 2005-03-31 Hinshaw Jerald C. Metal complexes for use as gas generants
US6969435B1 (en) 1994-01-19 2005-11-29 Alliant Techsystems Inc. Metal complexes for use as gas generants
US20100084060A1 (en) * 1994-01-19 2010-04-08 Alliant Techsystems Inc. Metal complexes for use as gas generants
US9199886B2 (en) 1994-01-19 2015-12-01 Orbital Atk, Inc. Metal complexes for use as gas generants
US5672843A (en) * 1994-10-05 1997-09-30 Ici Americas Inc. Single charge pyrotechnic
AU2013206584B2 (en) * 2012-08-09 2018-03-08 Diehl Defence Gmbh & Co. Kg High-intensity active composition for a pyrotechnic decoy with a fluorinated carbon compound
US20150239794A1 (en) * 2012-08-31 2015-08-27 Armtec Defense Products Co. Ignition compositions, and preparations and uses thereof

Similar Documents

Publication Publication Date Title
US3122462A (en) Novel pyrotechnics
US2410801A (en) Igniting composition
US3912561A (en) Pyrotechnic compositions for gas generation
EP0706505B1 (en) Gas generator autoignition with a chlorate composition
US5388519A (en) Low toxicity primer composition
ES2249799T3 (en) FULMINANT BLENDS.
US2740702A (en) Propellant composition
US4390380A (en) Coated azide gas generating composition
US3753811A (en) Igniter composition
WO2000021908A1 (en) Black body decoy flare compositions for thrusted applications and methods of use
US3010815A (en) Monofuel for underwater steam propulsion
US3617403A (en) Ignition transfer composition comprising fuel, oxidizer and fluoroelastomer
US4002514A (en) Nitrocellulose propellant composition
EP0869934A1 (en) Non-toxic rim-fire primer
US3275484A (en) Percussion sensitive pyrotechnic or pyrophoric alloy-type priming mixture
US4130061A (en) Gun fired projectile having reduced drag
US3437534A (en) Explosive composition containing aluminum,potassium perchlorate,and sulfur or red phosphorus
US3773947A (en) Process of generating nitrogen using metal azide
US3111439A (en) High explosive mixtures
US4012244A (en) High density impulse solid propellant
US2970047A (en) Conductive priming mixture
US4874441A (en) Explosive for warheads and solid rocket propellant
US3671341A (en) Dense propellant composition
US3740947A (en) Hypergolic propellants
US6230628B1 (en) Infrared illumination compositions and articles containing the same