EP1993978B1 - Zündzusammensetzung und anwendungen - Google Patents

Zündzusammensetzung und anwendungen Download PDF

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Publication number
EP1993978B1
EP1993978B1 EP07731031A EP07731031A EP1993978B1 EP 1993978 B1 EP1993978 B1 EP 1993978B1 EP 07731031 A EP07731031 A EP 07731031A EP 07731031 A EP07731031 A EP 07731031A EP 1993978 B1 EP1993978 B1 EP 1993978B1
Authority
EP
European Patent Office
Prior art keywords
composition
explosive
tetrazene
weight
fraction
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.)
Active
Application number
EP07731031A
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English (en)
French (fr)
Other versions
EP1993978A1 (de
Inventor
Alain Bass
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.)
Cheddite France
Original Assignee
Cheddite France
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 Cheddite France filed Critical Cheddite France
Priority to PL07731031T priority Critical patent/PL1993978T3/pl
Publication of EP1993978A1 publication Critical patent/EP1993978A1/de
Application granted granted Critical
Publication of EP1993978B1 publication Critical patent/EP1993978B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C7/00—Non-electric detonators; Blasting caps; Primers
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B33/00—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
    • C06B33/08—Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide with a nitrated organic compound

Definitions

  • the present invention relates to a priming composition for incorporating a pyrotechnic chain to provide ignition, separation or destruction.
  • a priming composition is a mass of a detonating material that will be used to transform a generally mechanical action, for example percussion, into a pyrotechnic action, causing the ignition of a charge of powder or explosive.
  • the invention will be more particularly described in an application to hunting or sports cartridges, but it is not limited to this use and may be suitable for any system of deformation by explosion, for example in the automotive industry, to the ignition for an airbag or seat belt pretensioner.
  • lead-free initiating compositions have been developed with an explosive fraction consisting of mixtures of diazodinitrophenol and tetrazene, in a proportion of tetrazene of up to 40% for each of them, by weight relative to the total weight of the composition.
  • FR-A-2,730,991 discloses an initiator composition for small arms cartridges comprising 20-40% by weight of diazodinitrophenol and 5-20% by weight of tetrazene, and an oxidation-reduction system comprising metals and tin oxides .
  • EP-A-1 216 215 discloses an initiator composition comprising 5-40% by weight of an explosive selected from nitroesters and nitramines, 5-40% by weight of tetrazene, an oxidation-reducing system, an agglomerating agent and a friction agent.
  • the preferred compositions described still comprise an explosive fraction having a proportion of at least 50% by weight of the composition.
  • tetrazene or 1 (5-tetrazolyl) -4-guanyl tetrazene hydrate
  • tetrazene or 1 (5-tetrazolyl) -4-guanyl tetrazene hydrate
  • the explosive fraction thus obtained is lead free.
  • the use of tetrazene as the primary primary explosive or as the only primary explosive makes it possible to lower the proportion of the explosive fraction in the priming composition.
  • the invention relates to a priming composition which comprises at least (a) an explosive fraction which comprises at least one primary explosive, (b) an oxidation-reducing system and (c) an agglomerating composition in which the explosive fraction represents from 9 to 35% by weight of the composition, and the primary explosive at least is tetrazene which represents at least 95% by weight of said explosive fraction.
  • the tetrazene represents at least 99% by weight of the explosive fraction.
  • a composition of the invention is thus obtained by a simplified method which avoids having to use an additional line of synthesis of another primary explosive, said composition being effective, even in the absence of any other primary explosive, or even secondary explosive.
  • a preferred industrial process for obtaining tetrazene comprises the reaction, with stirring, of an aqueous solution of a nitrite salt, for example sodium nitrite, and an aqueous solution of a neutral salt of guanidine, for example a guanidine sulphate, in the absence of mineral acid, and optionally in the presence of acetic acid and / or crystallization agent.
  • a nitrite salt for example sodium nitrite
  • a neutral salt of guanidine for example a guanidine sulphate
  • a process is implemented according to which the tetrazene is formed in situ.
  • a salt of nitrite and a neutral salt of guanidine that is to say the reagents for the preparation of the tetrazene, as well as the other constitutive ingredients of the composition, are dry blended.
  • An appropriate quantity of this dry mixture is then metered into the starter cell, the mixture is compressed and then moistened, this step causing the formation of the tetrazene, and finally the composition is dried.
  • This process is suitable for all starting reagents for the synthesis of tetrazene, in particular sodium nitrite and / or guanidine sulphate, as well as any constituent ingredients of a composition of the invention.
  • This process is very advantageous in that it combines and safe handling and environmental safety.
  • the invention therefore also relates to a composition as described above, the explosive fraction of which comprises no other primary explosive than tetrazene, and a composition whose explosive fraction consists only of tetrazene.
  • the explosive fraction of a composition may, if necessary, comprise at least one secondary explosive.
  • This may be chosen from secondary explosives well known to those skilled in the art, and in particular from aromatic nitro explosives, such as tolite (or 2,4,6-trinitrotoluene, 2,4,6-TNT), melinite (or picric acid) and trinitroaniline (or picramide or trinitroamine benzene); nitric ester explosives such as pentrite (or pentaerythritol tetranitrite, PETN) and nitrated esters of cellulose; and nitramine explosives, such as hexogen (or cyclotrimethylene trinitramine, RDX), tetryl (or 2,4,6-trinitrophenylmethylnitramine), nitroguanidine and octogen (or cyclotetramethylene tetranitramine, HMX).
  • aromatic nitro explosives such as tolite (or 2,4,6-tri
  • a composition of the invention advantageously has the following characteristics, considered independently or in combination.
  • the oxidizing agent (s) of the oxidation-reduction system (b) are chosen from chemically stable oxidants and in particular from nitrate of barium, zinc oxides, zinc sulphate, copper oxide, copper nitrate, manganese oxides, ferric oxides, potassium chlorate, sodium chlorate, chromium oxide, carbonates and their mixtures.
  • the reductant (s) of the redox system (b) are chosen from organic reducers, metals and metal salts, celluloses and optionally nitrated cellulose derivatives.
  • the reducing agent (s) of the redox system (b) are chosen from aluminum, magnesium, zirconium and antimony sulphide.
  • the proportion of the redox system (b) preferably varies between 65 and 81% by weight relative to the weight of the composition.
  • the binder (c) is advantageously chosen from cellulose gums such as gum arabic, gum tragacanth and gum acacia. If the binder is necessary or even essential, its proportion in the composition can be very low, it generally varies from 0.01 to 5% by weight.
  • a composition may comprise at least one friction agent, which is chemically inert.
  • Undit agent is for example chosen from glass powder, diamond powder, carbide powder, ceramic, nitrides such as titanium nitride.
  • the proportion of the friction agent preferably does not exceed 15% by weight relative to the weight of the composition.
  • a composition of the invention can be used in various fields, in particular for the manufacture of shot, hunting, sports, defense cartridges, for barreled and rifled guns, in the automotive industry for manufacture of airbags safety devices (airbags) or pretensioners, or for any other article using pyrotechnic energy, or for sealing techniques using explosive cartridges. It can also find applications in medical injection techniques, for example for the intradermal or subcutaneous administration of a drug, a vaccine.
  • the proportion of the binder is low compared to those of the other constituents of the exemplified composition.
  • the explosive fraction (a) in such a composition of the invention represents only 20% of said composition.
  • This composition constitutes an advantageous variant of the invention in that the explosive fraction (a) consists only of tetrazene.
  • the explosive fraction in such a composition represents 32-40% of said composition.
  • compositions were tested under the same conditions in three tests, a percussion sensitivity test, a ballistic test and a full-scale blind ballistic test.
  • This test measures the ability of a composition to respond to the percussion of the weapon and safety standards.
  • a standard ball drop apparatus is used. A ball of 56 g is released from a height H on a firing pin, thus causing the explosion or not of the load.
  • the priming composition is placed in a cell in which it is protected by a blotter.
  • composition tested is that described at the beginning of the example, with a variation of the proportion of tetrazene indicated in the table and compensated by the proportion of barium nitrate.
  • Table 1 Lot 20 20% tetrazene Lot 21 18% tetrazene Lot 22 23% tetrazene Lot 20 20% tetrazene Lot 21 18% tetrazene Lot 22 23% tetrazene Weight of the priming composition (mg) 61 61 58 68 70 72 Weight of the blotter 120 120 120 120 120 120 120 120 H (mm) 72 75 64 71 86 87 S 0.539 0.594 0.939 0,440 0.642 0.570 H + 5s 126 135 158 122 150 145
  • skirt pad cartridges After having constituted skirt pad cartridges, loaded with a commercially available powder and a charge of lead, and initiated by a composition of the invention or a composition of the prior art, these cartridges are placed in an apparatus of control, called shotgun.
  • Trials were carried out in triplicate on the composition of the invention, and for a lead load of 36 g and another of 32 g.
  • Table 2 corresponds to tests carried out with a lead load of 36 g
  • Table 3 corresponds to those carried out with a lead load of 32 g.
  • Table 2 P1 V1 V2 Tc S P1 S V1 S V2 S Tc
  • Prior art 664 386 336 3065 33 5 4 89 Invention 662 386.6 335 3178
  • Trial 1 30 4 4.7 270 Invention 661 386 335 3170
  • Trial 2 25
  • Invention 662 387 335 3129 Trial 3 35 5 4 99
  • Prior art 592 402 345 3043 32 4.8 3 93
  • Invention 583 401 345 3078 Trial 1 30 5.5 4 117 Invention 585 400 344 3075 Trial 2 29 5.5 4 100 Invention 582 400 343 3091 Trial 3 32 5.6 4.8 117

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Air Bags (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Paints Or Removers (AREA)
  • Automotive Seat Belt Assembly (AREA)

Claims (15)

  1. Zünderzusammensetzung, die zumindest Folgendes aufweist, nämlich (a) einen explosiven Anteil der zumindest einen Initialsprengstoff aufweist, (b) ein Oxidations-Reduktionsmittelsystem und (c) ein Bindemittel, dadurch gekennzeichnet, dass der explosive Anteil 9 bis 35 Gew.-% der Zusammensetzung ausmacht, dass der Initialsprengstoff zumindest Tetrazen aufweist und dass das Tetrazen mindestens 95 Gew.-% des explosiven Anteils ausmacht.
  2. Zusammensetzung nach Anspruch 1, dadurch gekennzeichnet, dass das Tetrazen zumindest 99 Gew.-% des explosiven Anteils ausmacht.
  3. Zusammensetzung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der explosive Anteil keinen anderen Initialsprengstoff als Tetrazen aufweist.
  4. Zusammensetzung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der explosive Anteil aus nichts anderem besteht als Tetrazen.
  5. Zusammensetzung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der explosive Anteil zumindest einen Sekundärsprengstoff aufweist.
  6. Zusammensetzung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sie frei von Blei ist.
  7. Zusammensetzung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass das oder die Oxidationsmittel des Oxidations-Reduktionsmittelsystems (b) ausgewählt sind aus Folgendem, nämlich Bariumnitrat, den Zinkoxiden, Zinksulfat, Kupferoxid, Kupfernitrat, den Manganoxiden, den Eisenoxiden, Kaliumchlorat, Natriumchlorat, Chromoxid, den Karbonaten und Mischungen davon.
  8. Zusammensetzung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das oder die Reduktionsmittel des Oxidations-Reduktionsmittelsystems (b) ausgewählt sind aus den organischen Reduktionsmitteln, den Metallen und den Metallsalzen, den Zellulosen, und den ggf. nitrierten Zellulosederivaten.
  9. Zusammensetzung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass der Anteil des Oxidations-Reduktionsmittelsystems (b) bezogen auf das Gewicht der Zusammensetzung zwischen 65 und 81 Gew.-% variiert.
  10. Zusammensetzung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass das Bindemittel (c) ausgewählt ist aus den Zellulosegummis wie bspw. Gummi arabicum, Tragantgummi und Akaziagummi.
  11. Zusammensetzung nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass der Anteil des Bindemittels (c) bezogen auf das Gewicht der Zusammensetzung zwischen 0,01 und 5 Gew.-% variiert.
  12. Zusammensetzung nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass sie Folgendes aufweist:
    15 bis 25 % Tetrazen
    40 bis 60 % Bariumnitrat
    18 bis 30 % Antimonsulfit
    5 bis 12 % Aluminiumpulver
    ein Bindemittel.
  13. Verwendung einer Zusammensetzung nach einem der Ansprüche 1 bis 12 zur Herstellung von Patronen für Schusswaffen, Schrotpatronen, Sportpatronen und Militärpatronen.
  14. Verwendung einer Zusammensetzung nach einem der Ansprüche 1 bis 12 zur Herstellung von Airbags und Vorspannern für Sicherheitsgurte.
  15. Verwendung einer Zusammensetzung nach einem der Ansprüche 1 bis 12 für Befestigungstechniken unter Verwendung von Sprengpatronen.
EP07731031A 2006-02-24 2007-02-23 Zündzusammensetzung und anwendungen Active EP1993978B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07731031T PL1993978T3 (pl) 2006-02-24 2007-02-23 Mieszanka zapłonowa i jej zastosowania

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0601644A FR2897864B1 (fr) 2006-02-24 2006-02-24 Composition d'amorcage et applications
PCT/FR2007/000326 WO2007096529A1 (fr) 2006-02-24 2007-02-23 Composition d'amorcage et applications

Publications (2)

Publication Number Publication Date
EP1993978A1 EP1993978A1 (de) 2008-11-26
EP1993978B1 true EP1993978B1 (de) 2010-10-20

Family

ID=37147197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07731031A Active EP1993978B1 (de) 2006-02-24 2007-02-23 Zündzusammensetzung und anwendungen

Country Status (15)

Country Link
US (1) US8052813B2 (de)
EP (1) EP1993978B1 (de)
JP (1) JP2009527453A (de)
CN (1) CN101384524B (de)
AT (1) ATE485252T1 (de)
AU (1) AU2007217337B2 (de)
BR (1) BRPI0708248B1 (de)
CA (1) CA2641938C (de)
DE (1) DE602007009943D1 (de)
ES (1) ES2353263T3 (de)
FR (1) FR2897864B1 (de)
MY (1) MY148243A (de)
PL (1) PL1993978T3 (de)
RU (1) RU2417972C2 (de)
WO (1) WO2007096529A1 (de)

Families Citing this family (10)

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JP5458346B2 (ja) * 2008-07-16 2014-04-02 昭和金属工業株式会社 無鉛爆粉
BR112012026892A2 (pt) * 2010-04-22 2016-07-19 Pacific Scient Energetic Materials Co alternativa para tetrazeno
CN102675008A (zh) * 2012-05-29 2012-09-19 北方爆破工程有限责任公司 一种起爆具及其制备方法
KR101326921B1 (ko) 2012-11-30 2013-11-11 한국교통대학교산학협력단 구명기능을 구비한 의류용 구명끈
GB2517119B (en) 2013-01-17 2021-03-03 Utm Ltd Explosive composition for use in telescopically expanding non-lethal training ammunition
CN104045494B (zh) * 2014-06-25 2016-08-17 中国工程物理研究院化工材料研究所 一种高密度低爆速炸药及其制备方法
CN104447140A (zh) * 2014-11-26 2015-03-25 雅化集团绵阳实业有限公司 一种ddnp连续自动化生产线整线安全联锁装置
RU2607211C2 (ru) * 2014-12-03 2017-01-10 Акционерное общество "Ульяновский патронный завод" (АО "УПЗ") Мощный некорродирующий ударно-воспламеняющий состав для капсюля-воспламенителя к патронам стрелкового оружия
CN104529682A (zh) * 2014-12-09 2015-04-22 湖南省浏阳金生花炮有限公司 环保发射药
CN104792591B (zh) * 2015-04-10 2018-02-16 泽龙 一种用1‑乙基‑3‑甲基咪唑四氟硼酸盐离子液体作导电处理剂的sem‑edx检测方法

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Also Published As

Publication number Publication date
MY148243A (en) 2013-03-29
RU2008133760A (ru) 2010-03-27
ES2353263T3 (es) 2011-02-28
CA2641938A1 (fr) 2007-08-30
RU2417972C2 (ru) 2011-05-10
AU2007217337A1 (en) 2007-08-30
EP1993978A1 (de) 2008-11-26
CN101384524A (zh) 2009-03-11
BRPI0708248B1 (pt) 2018-04-03
WO2007096529A1 (fr) 2007-08-30
DE602007009943D1 (de) 2010-12-02
FR2897864A1 (fr) 2007-08-31
BRPI0708248A2 (pt) 2011-05-24
PL1993978T3 (pl) 2011-07-29
FR2897864B1 (fr) 2008-04-11
US8052813B2 (en) 2011-11-08
CN101384524B (zh) 2011-08-17
CA2641938C (fr) 2016-07-05
JP2009527453A (ja) 2009-07-30
AU2007217337B2 (en) 2011-08-18
ATE485252T1 (de) 2010-11-15
US20090151825A1 (en) 2009-06-18

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