US3707411A - Primer composition for solid propellant charges - Google Patents

Primer composition for solid propellant charges Download PDF

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Publication number
US3707411A
US3707411A US869382A US3707411DA US3707411A US 3707411 A US3707411 A US 3707411A US 869382 A US869382 A US 869382A US 3707411D A US3707411D A US 3707411DA US 3707411 A US3707411 A US 3707411A
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Prior art keywords
mixture
primer composition
weight
nitrocellulose
percussion
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US869382A
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Heinz Gawlick
Gunther Marondel
Werner Siegelin
Heinz Ratz
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Dynamit Nobel AG
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Dynamit Nobel AG
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    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/18—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition
    • C06B25/22—Compositions containing a nitrated organic compound the compound being nitrocellulose present as 10% or more by weight of the total composition with a nitrated aromatic compound
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B43/00—Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S102/00—Ammunition and explosives
    • Y10S102/70—Combustilbe cartridge

Definitions

  • a primer composition for solid propellant charges comprising a mixture of nitrocellulose and 5-80% by weight, preferably 540%, of a percussion-sensitive diazo, triazole or tetrazole derivative, for example, S-aminotetrazole, diazodinitrophenol or tetrazene.
  • a percussion-sensitive diazo, triazole or tetrazole derivative for example, S-aminotetrazole, diazodinitrophenol or tetrazene.
  • nitro compounds such as penthrite and nitromannite, can be added to vary and improve the brisance of the mixture as desired.
  • the composition finds particular use in the recess of annular caseless propellant cartridges, for example, in stud driving tools.
  • This invention relates to primer compositions for solid propellant charges. More particularly, it relates to percussion-sensitive primer compositions for solid propellant charges comprising diazo, triazole or tetrazole derivatives.
  • primer mixtures containing primers such as tricinate (trinitroresorcinate) and tetrazene, known under the name of Sinoxid and having thermal components mixed therewith, such as calcium silicide and antimony sulfide. These compositions burn with the aid of oxidizers, such as barium nitrate, potassium nitrate, metallic oxides, etc. These primer charges develop a large amount of heat and have a varying percussion sensitivity, depending on the tetrazene content admixed in the mixtures.
  • One of the objects of the present invention is to provide primer compositions which overcome the disadvantages and deficiencies of the prior art.
  • Another object of the present invention is to provide primer compositions for solid propellant charges wherein the above-mentioned disadvantages, especially formation of combustion residues, are avoided.
  • a further object of the invention is to provide percussion-sensitive primer compositions for solid propellant charges which have a stable percussion sensitivity and which do not leave undesirable residues when fired.
  • a primer composition constituted by a mixture of 580%, preferably up to about 50%, by weight of a percussion-sensitive diazo, triazole or tetrazole derivative and nitrocellulose has been found to meet the objectives discussed hereinabove.
  • Preferred diazo triazole or tetrazole derivatives to be employed include, for example, S-aminotetrazole, diazodinitrophenol or the like, and most preferably, tetrazene.
  • nitrocellulose powder exhibits a relatively low percussion sensitivity and, on the other hand, tetrazene also shows a sufficient sensitivity only with the aid of frictional agents or by the admixture of hard or dense components therewith, such as calcium silicide or glass, an intimate mixture of nitrocellulose with, for example, tetrazene possesse a high percussion sensitivity even without the addition of hard and dense filler materials thereto.
  • nitro compounds include explosive nitrated esters, for example, penthrite (pentaerythritol tetranitrate), nitromannite (mannitol hexanitrate) or the like. These additives make it possible to improve or vary, as desired, the brisance of the mixture.
  • the mixture is granulated in a conventional manner with the aid of solvents, such as acetone, ethyl acetate or methyl acetate and/ or colloidal substances, such as glue (mucilage), gelatin of dextrine.
  • solvents such as acetone, ethyl acetate or methyl acetate
  • colloidal substances such as glue (mucilage), gelatin of dextrine.
  • a granulated mixture consisting essentially of 50% by Weight of tetrazene and 50% by weight of nitrocellulose, results in a percussion sensitivity of 0.03 mkp. (meter kilopond) [1 kg. falling weight], in accordance with the BAM falling weight test.
  • the sensitivity of pure nitrocellulose according to this test is about 0.35 mkp., while that of tetrazene is about 0.2 mkp.
  • the tetrazene content in the mixture can be reduced to 5% by weight, and the mixture still exhibits a sensitivity of about 0.2 mkp. Thus, the sensitivity value is still below the sensitivity of pure nitrocellulose.
  • a primer composition mixture of the above-described type wherein the components are mixed with one another mechanically exhibits, under the same conditions, a percussion sensitivity of about 0.1-0.2 mkp.
  • the percussion sensitivity of the mixture is equal to or better than that of the more percussion-sensitive component.
  • An amount of 5 mg. of the mixture of 50% by weight of nitrocellulose and 50% by weight of tetrazene is sufiicient to ignite, for example, mg. of nitrocellulose powder and to bring about a complete conversion.
  • This ratio can, however, be further varied within wide limits in accordance with the arrangement and the geometric relationships.
  • the possibilities for the utilization of the primer composition of this invention are very manifold.
  • the composition of the invention in accordance with a further embodiment, can be used advantageously in the recess of annular caseless propellant cartridges for stud driving tools, wherein the cartridges are produced from propellants such as nitrocellulose or mixtures of nitroglycerin and nitrocellulose.
  • propellants such as nitrocellulose or mixtures of nitroglycerin and nitrocellulose.
  • a primer composition for solid propellant charges comprising a mixture of nitrocellulose and about to 80% by weight of a percussion-sensitive compound selected from the group consisting of a diazo, a triazole, and a tetrazole compound.
  • a primer composition according to claim 1, wherein said percussion-sensitive compound is selected from the group consisting of S-aminotetrazole, diazodinitrophenol and tetrazene.
  • a granulated free-flowing primer composition for solid propellant charges comprising a mixture of nitrocellulose and about 5 to 80% by weight of a percussionsensitive compound selected from the group consisting of a diazo, a triazole, and a tetrazole compound.
  • a primer composition for solid propellant charges comprising a mixture of nitrocellulose and about 5 to 50% by weight of a percussion-sensitive compound selected from the group consisting of S-aminotetrazole, diazodinitrophenol and tetrazene.
  • a primer composition for solid propellant charges comprising a mixture of nitrocellulose and 5 to by weight of tetrazene.
  • a caseless propellant cartridge containing nitrocellulose or a mixture of nitroglycerin and nitrocellulose as the propellant and a primer composition comprising a mixture of nitrocellulose and about 5 to 80% by weight of a percussion-sensitive compound selected from the group consisting of a diazo, a triazole, and a tetrazole compound.

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  • Organic Chemistry (AREA)
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Abstract

A PRIMER COMPOSITION FOR SOLID PROPELLANT CHARGES COMPRISING A MIXTURE OF NITROCELLULOSE AND 5-80% BY WEIGHT, PREFERABLY 5-50%, OF A PERCUSSION-SENSITIVE DIAZO, TRIAZOLE OR TETRAZOLE DERIVATIVE, FOR EXAMPLE, 5-AMINOTETRAZOLE, DIAZODINITROPHENOL OR TETRAZENE. UP TO ABOUT 40% BY WEIGHT OF NITRO COMPOUNDS, SUCH AS PENTHRITE AND NITROMANNITE, CAN BE ADDED TO VARY AND IMPROVE THE BRISANCE OF THE MIXTURE AS DESIRED. THE COMPOSITION FINDS PARTICULAR USE IN THE RECESS OF ANNULAR CASELESS PROPELLANT CARTRIDGES, FOR EXAMPLE, IN STUD DRIVING TOOLS.

Description

United States Patent 3,707,411 PRIMER COMPOSITION FOR SOLID PROPELLANT CHARGES Heinz Gawlick, Furth, Gunther Marondel, Erlangen, Weruer Siegelin, Stein, and Heinz Ratz, Troisdorf, Germany, assignors to Dynamit Nobel AG, Troisdorf, Germany No Drawing. Filed Oct. 24, 1969, Ser. No. 869,382
Int. Cl. C06c 3/10 US. Cl. 149-14 12 Claims ABSTRACT OF THE DISCLOSURE A primer composition for solid propellant charges comprising a mixture of nitrocellulose and 5-80% by weight, preferably 540%, of a percussion-sensitive diazo, triazole or tetrazole derivative, for example, S-aminotetrazole, diazodinitrophenol or tetrazene. Up to about 40% by weight of nitro compounds, such as penthrite and nitromannite, can be added to vary and improve the brisance of the mixture as desired. The composition finds particular use in the recess of annular caseless propellant cartridges, for example, in stud driving tools.
BACKGROUND OF THE INVENTION This invention relates to primer compositions for solid propellant charges. More particularly, it relates to percussion-sensitive primer compositions for solid propellant charges comprising diazo, triazole or tetrazole derivatives.
Substances conventionally employed for the ignition of propellant charges are primer mixtures containing primers such as tricinate (trinitroresorcinate) and tetrazene, known under the name of Sinoxid and having thermal components mixed therewith, such as calcium silicide and antimony sulfide. These compositions burn with the aid of oxidizers, such as barium nitrate, potassium nitrate, metallic oxides, etc. These primer charges develop a large amount of heat and have a varying percussion sensitivity, depending on the tetrazene content admixed in the mixtures.
These mixtures, during combustion, leave solid components deposited in the barrel and in the cartridge case as lead compounds, metallic oxides and carbon. In certain fields of use, these residues can have a troublesome effect, especially in those cases where a clean surface of the combustion chamber and the barrel is desired after firing.
Troublesome residues are likewise formed when burning percussion-sensitive mixtures of nitrocellulose and metallic components, such as aluminum, magnesium, calcium silicide and lead picrate, although nitrocellulose powder by itself burns without leaving any appreciable residues, as is known in the art.
One of the objects of the present invention is to provide primer compositions which overcome the disadvantages and deficiencies of the prior art.
Another object of the present invention is to provide primer compositions for solid propellant charges wherein the above-mentioned disadvantages, especially formation of combustion residues, are avoided.
A further object of the invention is to provide percussion-sensitive primer compositions for solid propellant charges which have a stable percussion sensitivity and which do not leave undesirable residues when fired.
These and other objects and advantages of the present invention will become apparent to those skilled in the art from a consideration of the following specification and claims.
Patented Dec. 26, 1972 ice In accordance with the present invention, a primer composition constituted by a mixture of 580%, preferably up to about 50%, by weight of a percussion-sensitive diazo, triazole or tetrazole derivative and nitrocellulose has been found to meet the objectives discussed hereinabove. Preferred diazo triazole or tetrazole derivatives to be employed include, for example, S-aminotetrazole, diazodinitrophenol or the like, and most preferably, tetrazene.
It has been found that although, on the one hand, nitrocellulose powder exhibits a relatively low percussion sensitivity and, on the other hand, tetrazene also shows a sufficient sensitivity only with the aid of frictional agents or by the admixture of hard or dense components therewith, such as calcium silicide or glass, an intimate mixture of nitrocellulose with, for example, tetrazene possesse a high percussion sensitivity even without the addition of hard and dense filler materials thereto.
According to a further embodiment of the invention, up to about 40% by weight, based on the total mixture, of one or more nitro compounds is added to the mixture. Exemplary nitro compounds include explosive nitrated esters, for example, penthrite (pentaerythritol tetranitrate), nitromannite (mannitol hexanitrate) or the like. These additives make it possible to improve or vary, as desired, the brisance of the mixture.
In a further embodiment of the invention, the mixture is granulated in a conventional manner with the aid of solvents, such as acetone, ethyl acetate or methyl acetate and/ or colloidal substances, such as glue (mucilage), gelatin of dextrine. By using said colloidal substances, it is possible to impart to the mixture a spherical character so that a better fluidity after drying is obtained.
EXAMPLES OF THE INVENTION The following examples are given merely as illustrative of the present invention and are not to be considered as limiting. Unless otherwise noted, the percentages therein and throughout the application are by weight.
A granulated mixture, consisting essentially of 50% by Weight of tetrazene and 50% by weight of nitrocellulose, results in a percussion sensitivity of 0.03 mkp. (meter kilopond) [1 kg. falling weight], in accordance with the BAM falling weight test. The sensitivity of pure nitrocellulose according to this test is about 0.35 mkp., while that of tetrazene is about 0.2 mkp. The tetrazene content in the mixture can be reduced to 5% by weight, and the mixture still exhibits a sensitivity of about 0.2 mkp. Thus, the sensitivity value is still below the sensitivity of pure nitrocellulose.
In comparison thereto, a primer composition mixture of the above-described type wherein the components are mixed with one another mechanically, exhibits, under the same conditions, a percussion sensitivity of about 0.1-0.2 mkp.
Thus, in both cases, the percussion sensitivity of the mixture is equal to or better than that of the more percussion-sensitive component.
An amount of 5 mg. of the mixture of 50% by weight of nitrocellulose and 50% by weight of tetrazene is sufiicient to ignite, for example, mg. of nitrocellulose powder and to bring about a complete conversion. This ratio can, however, be further varied within wide limits in accordance with the arrangement and the geometric relationships.
It should be apparent that the possibilities for the utilization of the primer composition of this invention are very manifold. In particular, the composition of the invention, in accordance with a further embodiment, can be used advantageously in the recess of annular caseless propellant cartridges for stud driving tools, wherein the cartridges are produced from propellants such as nitrocellulose or mixtures of nitroglycerin and nitrocellulose. However, it is, of course, also possible to apply or arrange the primer composition on the surface of propellant powder bodies having any other desired shape.
The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included herein.
We claim:
1. A primer composition for solid propellant charges comprising a mixture of nitrocellulose and about to 80% by weight of a percussion-sensitive compound selected from the group consisting of a diazo, a triazole, and a tetrazole compound.
2. A primer composition according to claim 1, wherein about 5 to 50% by weight of said percussion-sensitive compound is employed in said mixture.
3. A primer composition according to claim 1, wherein said percussion-sensitive compound is selected from the group consisting of S-aminotetrazole, diazodinitrophenol and tetrazene.
4. A primer composition according to claim 1, wherein said mixture further includes up to about 40% by weight, based on the total mixture, of at least one nitrated ester.
5. A primer composition according to claim 4, wherein said nitrated ester is selected from the group consisting of penthrite and nitromannite.
6. A granulated free-flowing primer composition for solid propellant charges comprising a mixture of nitrocellulose and about 5 to 80% by weight of a percussionsensitive compound selected from the group consisting of a diazo, a triazole, and a tetrazole compound.
7. A primer composition for solid propellant charges comprising a mixture of nitrocellulose and about 5 to 50% by weight of a percussion-sensitive compound selected from the group consisting of S-aminotetrazole, diazodinitrophenol and tetrazene.
8. A primer composition according to claim 7, wherein said mixture further includes up to about 40% by weight, based on the total mixture, of at least one nitrated ester.
9. A primer composition according to claim 8, wherein said nitrated ester is selected from the group consisting of penthrite and nitromannite.
10. A primer composition for solid propellant charges comprising a mixture of nitrocellulose and 5 to by weight of tetrazene.
11. A caseless propellant cartridge containing nitrocellulose or a mixture of nitroglycerin and nitrocellulose as the propellant and a primer composition comprising a mixture of nitrocellulose and about 5 to 80% by weight of a percussion-sensitive compound selected from the group consisting of a diazo, a triazole, and a tetrazole compound.
12. A caseless propellant cartridge according to claim 11, wherein said primer composition is disposed in the annular recess of said cartridge.
References Cited UNITED STATES PATENTS 2,987,520 6/1961 Sickman 149-92 X 3,111,524 11/1963 Wiley et a1. 149-92 X 3,171,249 3/1965 Bell 149-36 X 3,184,471 5/ 1965 Harder 149-92 X 3,173,921 3/1965 Einberg 149-92 X 3,262,943 7/1966 Kauer 149-92 X 3,348,985 10/ 1967 Stadler et a1. 149-92 X 3,394,142 7/1968 Koshar 149-36 X 3,397,186 8/1968 Torley et al 149-36 X 3,483,211 12/1969 Coburn 149-92 X CARL D. QUARFORTH, Primary Examiner S. J. LECHERT, JR., Assistant Examiner U.S. Cl. X.R.
102-Dig. 1; 149-18, 96, 97, 99, 108, 93
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098193A (en) * 1976-09-08 1978-07-04 The United States Of America As Represented By The Secretary Of The Army Wear and corrosion reducing additive for gun propellants
FR2573066A1 (en) * 1984-11-14 1986-05-16 Omark Industries Inc PRIMER LOAD COMPOSITION CONTAINING MANGANESE DIOXIDE
FR2584066A1 (en) * 1985-06-28 1987-01-02 Poudres & Explosifs Ste Nale USE OF 5-OXO 3-NITRO, 1,2,4-TRIAZOLE AS AN EXPLOSIVE SUBSTANCE AND PYROTECHNIC COMPOSITIONS CONTAINING 5-OXO 3-NITRO 1,2,4-TRIAZOLE
US5466315A (en) * 1994-09-06 1995-11-14 Federal-Hoffman, Inc. Non-toxic primer for center-fire cartridges
US5547528A (en) * 1995-05-26 1996-08-20 Federal-Hoffman, Inc. Non-toxic primer
US6228192B1 (en) 1999-04-20 2001-05-08 Altantic Research Corporation Double base propellant containing 5-aminotetrazole
US6544363B1 (en) 2000-10-30 2003-04-08 Federal Cartridge Company Non-toxic, heavy-metal-free shotshell primer mix
US6984275B1 (en) * 2003-02-12 2006-01-10 The United States Of America As Represented By The Secretary Of The Navy Reduced erosion additive for a propelling charge
US20080245252A1 (en) * 2007-02-09 2008-10-09 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US20100116385A1 (en) * 2005-03-30 2010-05-13 Alliant Techsystems Inc. Methods of forming a sensitized explosive and a percussion primer
US20110100246A1 (en) * 2006-03-02 2011-05-05 Alliant Techsystems Inc. Percussion primers comprising a primer composition and ordnance including the same
US8202377B2 (en) 2007-02-09 2012-06-19 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US8206522B2 (en) 2010-03-31 2012-06-26 Alliant Techsystems Inc. Non-toxic, heavy-metal free sensitized explosive percussion primers and methods of preparing the same
US20130200601A1 (en) * 2010-10-29 2013-08-08 Trw Airbag Systems Gmbh Solid fuel body, gas generator, module having a gas generator, and pyrotechnic drive unit
US8540828B2 (en) 2008-08-19 2013-09-24 Alliant Techsystems Inc. Nontoxic, noncorrosive phosphorus-based primer compositions and an ordnance element including the same
US8641842B2 (en) 2011-08-31 2014-02-04 Alliant Techsystems Inc. Propellant compositions including stabilized red phosphorus, a method of forming same, and an ordnance element including the same
CN107151271A (en) * 2017-06-05 2017-09-12 常熟理工学院 A kind of preparation method of the low quick-fried temperature nitrocotton of high energy
US20220221256A1 (en) * 2019-12-11 2022-07-14 Midwest Outdoor Holdings Llc Ballistic barrel cleaning cartridge

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098193A (en) * 1976-09-08 1978-07-04 The United States Of America As Represented By The Secretary Of The Army Wear and corrosion reducing additive for gun propellants
FR2573066A1 (en) * 1984-11-14 1986-05-16 Omark Industries Inc PRIMER LOAD COMPOSITION CONTAINING MANGANESE DIOXIDE
US4608102A (en) * 1984-11-14 1986-08-26 Omark Industries, Inc. Primer composition
FR2584066A1 (en) * 1985-06-28 1987-01-02 Poudres & Explosifs Ste Nale USE OF 5-OXO 3-NITRO, 1,2,4-TRIAZOLE AS AN EXPLOSIVE SUBSTANCE AND PYROTECHNIC COMPOSITIONS CONTAINING 5-OXO 3-NITRO 1,2,4-TRIAZOLE
EP0210881A1 (en) * 1985-06-28 1987-02-04 Societe Nationale Des Poudres Et Explosifs Use of 5-oxo-3-nitro-1,2,4-triazole as a secondary explosive and pyrotechnical compositions comprising 5-oxo-3-nitro-1,2,4-triazole
US5034072A (en) * 1985-06-28 1991-07-23 Societe Nationale Des Poudres Et Explosifs 5-oxo-3-nitro-1,2,4-triazole in gunpowder and propellant compositions
US5466315A (en) * 1994-09-06 1995-11-14 Federal-Hoffman, Inc. Non-toxic primer for center-fire cartridges
WO1996007625A1 (en) * 1994-09-06 1996-03-14 Federal-Hoffman, Inc., Doing Business As Federal Cartridge Co. Non-toxic primer for center-fire cartridges
US5547528A (en) * 1995-05-26 1996-08-20 Federal-Hoffman, Inc. Non-toxic primer
WO1996038397A2 (en) * 1995-05-26 1996-12-05 Federal-Hoffman, Inc., Doing Business As Federal Cartridge Co. Improved non-toxic primer
WO1996038397A3 (en) * 1995-05-26 1997-01-09 Federal Hoffmann Inc Improved non-toxic primer
EP0828698A2 (en) * 1995-05-26 1998-03-18 Federal-Hoffman, Inc., D.B.A. Federal Cartridge Co. Improved non-toxic primer
EP0828698A4 (en) * 1995-05-26 1998-04-01 Federal Hoffmann Inc
US6228192B1 (en) 1999-04-20 2001-05-08 Altantic Research Corporation Double base propellant containing 5-aminotetrazole
US6544363B1 (en) 2000-10-30 2003-04-08 Federal Cartridge Company Non-toxic, heavy-metal-free shotshell primer mix
US6984275B1 (en) * 2003-02-12 2006-01-10 The United States Of America As Represented By The Secretary Of The Navy Reduced erosion additive for a propelling charge
US8460486B1 (en) 2005-03-30 2013-06-11 Alliant Techsystems Inc. Percussion primer composition and systems incorporating same
US20100116385A1 (en) * 2005-03-30 2010-05-13 Alliant Techsystems Inc. Methods of forming a sensitized explosive and a percussion primer
US8282751B2 (en) 2005-03-30 2012-10-09 Alliant Techsystems Inc. Methods of forming a sensitized explosive and a percussion primer
US20110100246A1 (en) * 2006-03-02 2011-05-05 Alliant Techsystems Inc. Percussion primers comprising a primer composition and ordnance including the same
US8524018B2 (en) 2006-03-02 2013-09-03 Alliant Techsystems Inc. Percussion primers comprising a primer composition and ordnance including the same
US9199887B2 (en) 2006-03-02 2015-12-01 Orbital Atk, Inc. Propellant compositions including stabilized red phosphorus and methods of forming same
US8454770B1 (en) 2007-02-09 2013-06-04 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US8192568B2 (en) 2007-02-09 2012-06-05 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US8202377B2 (en) 2007-02-09 2012-06-19 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US20080245252A1 (en) * 2007-02-09 2008-10-09 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US8454769B2 (en) 2007-02-09 2013-06-04 Alliant Techsystems Inc. Non-toxic percussion primers and methods of preparing the same
US8540828B2 (en) 2008-08-19 2013-09-24 Alliant Techsystems Inc. Nontoxic, noncorrosive phosphorus-based primer compositions and an ordnance element including the same
US8470107B2 (en) 2010-03-31 2013-06-25 Alliant Techsystems Inc. Non-toxic, heavy-metal free explosive percussion primers and methods of preparing the same
US8206522B2 (en) 2010-03-31 2012-06-26 Alliant Techsystems Inc. Non-toxic, heavy-metal free sensitized explosive percussion primers and methods of preparing the same
US20130200601A1 (en) * 2010-10-29 2013-08-08 Trw Airbag Systems Gmbh Solid fuel body, gas generator, module having a gas generator, and pyrotechnic drive unit
US10501386B2 (en) * 2010-10-29 2019-12-10 Trw Airbag Systems Gmbh Solid fuel body, gas generator, module having a gas generator, and pyrotechnic drive unit
US8641842B2 (en) 2011-08-31 2014-02-04 Alliant Techsystems Inc. Propellant compositions including stabilized red phosphorus, a method of forming same, and an ordnance element including the same
CN107151271A (en) * 2017-06-05 2017-09-12 常熟理工学院 A kind of preparation method of the low quick-fried temperature nitrocotton of high energy
CN107151271B (en) * 2017-06-05 2019-06-25 常熟理工学院 A kind of preparation method of the low quick-fried temperature nitrocotton of high energy
US20220221256A1 (en) * 2019-12-11 2022-07-14 Midwest Outdoor Holdings Llc Ballistic barrel cleaning cartridge
US11852452B2 (en) * 2019-12-11 2023-12-26 Midwest Outdoor Holdings Llc Ballistic barrel cleaning cartridge

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