EP3218330A1 - Produit de mise à feu à basse température de mise à feu - Google Patents

Produit de mise à feu à basse température de mise à feu

Info

Publication number
EP3218330A1
EP3218330A1 EP15801695.6A EP15801695A EP3218330A1 EP 3218330 A1 EP3218330 A1 EP 3218330A1 EP 15801695 A EP15801695 A EP 15801695A EP 3218330 A1 EP3218330 A1 EP 3218330A1
Authority
EP
European Patent Office
Prior art keywords
thermal
ignition
nitrate
thermal pre
frühzündmittels
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.)
Withdrawn
Application number
EP15801695.6A
Other languages
German (de)
English (en)
Inventor
Aleksej Hoschenko
Ulrich Bley
Peter Simon Lechner
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.)
RWS GmbH
Original Assignee
RUAG Ammotec GmbH
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 RUAG Ammotec GmbH filed Critical RUAG Ammotec GmbH
Publication of EP3218330A1 publication Critical patent/EP3218330A1/fr
Withdrawn legal-status Critical Current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
    • C06B25/00—Compositions containing a nitrated organic compound
    • C06B25/04—Compositions containing a nitrated organic compound the nitrated compound being an aromatic
    • 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
    • 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
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C9/00—Chemical contact igniters; Chemical lighters
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D273/00—Heterocyclic compounds containing rings having nitrogen and oxygen atoms as the only ring hetero atoms, not provided for by groups C07D261/00 - C07D271/00
    • C07D273/02—Heterocyclic compounds containing rings having nitrogen and oxygen atoms as the only ring hetero atoms, not provided for by groups C07D261/00 - C07D271/00 having two nitrogen atoms and only one oxygen atom

Definitions

  • the subject of the present invention is a thermal pre-ignition agent.
  • Thermal ignition agents in the context of the invention are pyrotechnic substances or mixtures which have ignition temperatures below 200 ° C. Areas of application of such thermal pre-ignition agents are, for example, safety systems, preferably thermal fuses in gas generators or separating elements for batteries. Such security systems are again preferably used in motor vehicles.
  • the thermal pre-ignition agents are used to ignite the generally thermally very stable gas-generating mixtures of a gas generator in the event of a vehicle fire controlled.
  • Thermal pre-ignition agents are also used as a pyrotechnic set in separating elements, preferably for battery terminals. These dividing elements should interrupt the power supply in the event of a fire, in particular a vehicle fire, or in a motor vehicle accident in which the gas generator is triggered.
  • nitrocellulose-containing thermal ignition agent and derived propellant charge powder have ignition temperatures of about 160 ° C and are insufficiently long-term stability.
  • the document DE 197 30 873 A1 describes mixtures based on nitrotriazolone and guanidine nitrate which are nitrocellulose-free.
  • WO 99/41213 discloses early ignition powders which, even after hot storage for 400 hours at 107 ° C., show a weight loss of ⁇ 3% by weight and an autoignition temperature (decomposition temperature) in the range between 150 ° C. and 200 ° C. to sit.
  • Object of the present invention is to provide an alternative thermal ignition agent with a deflagration ⁇ 180 ° C, a friction sensitivity> 250 N, a shock sensitivity> 3 J and a long-term stability expressed as weight loss ⁇ 1 wt .-% after hot storage at 125 ° C 1000 hours.
  • ignition temperature, autoignition temperature, decomposition temperature and deflagration temperature are used as synonyms for the purposes of the present invention.
  • a further object of the present invention was to provide a thermal pre-ignition agent which can be used for gas generators in motor vehicle safety systems or in separator elements for battery terminals.
  • this object is surprisingly achieved by the features of the main claim.
  • Preferred embodiments can be found in the subclaims.
  • mixtures of 20 to 50 wt .-% dinitrobenzofuroxan (DNBF) with 50 to 80 wt .-% of an oxidizing agent and a nitrogen-containing compound can control the deflagration temperatures in the range of 140 ° C to 175 ° C.
  • the deflagration temperatures of the mixtures may be lower than those of individual components.
  • the melting point or decomposition point of pure DNBF is for example about 170 ° C.
  • the oxidants and nitrogenous compounds are selected from the groups consisting of: 1. Oxidizing agents (individually or in mixtures)
  • Nitrates of alkali or alkaline earth metals or ammonium such as sodium, potassium or ammonium nitrate, perchlorates of alkali or alkaline earth metals or of ammonium, peroxides of alkali or alkaline earth metals or zinc.
  • Nitrogen-containing compounds (individually or in mixtures)
  • tetrazole such as 5-aminote
  • additives may be included, selected from the groups consisting of: 3. Reducing agents (individually or in mixtures)
  • Binders (individually or in mixtures)
  • Burn-off moderators, stabilizers and processing aids (individually or in mixtures)
  • Ferrocene and derivatives acetonyl acetates, salicylates, barium carbonate, strontium carbonate, magnesium carbonate, melamine, zinc oxide, zinc carbonate, silicates, silica gels, silicas, boron nitride.
  • the production and processing takes place according to known and customary methods. These include, for example, kneading, extrusion, extrusion, tableting or granulation.
  • the subject of the present invention is: a thermal pre-ignition agent containing as components 20 to 50% by weight of dinitrobenzofuroxan and 50 to 80% by weight of an oxidizing agent and a nitrogen-containing compound;
  • thermal preignition agent containing from 30 to 70% by weight of an oxidizing agent selected from one or more of the nitrates of the alkali and / or alkaline earth metals and / or ammonium, the perchlorates of the alkali and / or alkaline earth metals and / or of the Ammonium, the peroxides of the alkali and / or alkaline earth metals and / or zinc; a thermal preignition agent containing from 10 to 50% by weight of a nitrogenous compound selected from one or more of ammonium picrate, aminoguanidinium picrate, guanidinium picrate, aminoguanidinium stannate, guanidinium styrenate, nitroguanidine, nitroaminoguanidine, nitrotriazolone, derivatives of tetrazole and / or their salts, nitraminotetrazole and / or its salts, amino guanidine nitrate, diamino-gu
  • thermal preignition agent containing from 1 to 15% by weight of a reducing agent selected from one or more of aluminum, titanium, titanium hydride, boron, borohydride, zirconium, zirconium hydride, silicon, graphite, activated carbon, carbon black;
  • thermal pre-ignition agent containing from 1 to 20% by weight of a binder selected from one or more of cellulose and derivatives thereof, polyvinyl butyrals, polynitropolyphenylene, polynitrophenyl ether, plexigum, polyvinyl acetate and its copolymers; a thermal pre-ignition agent containing from 0.1 to 15% by weight, more preferably from 1 to 10% by weight, of burnout moderators and processing aids selected from one or more of ferrocene and its derivatives, acetonylacetates, salicylates, barium carbonate, strontium carbonate , Magnesium carbonate, melamine, zinc oxide, zinc carbonate, silicates, silica gels and / or boron nitride; - Use of the thermal Appelzündffens invention as a thermal fuse;
  • Table 1 lists the compositions of 6 different mixtures of thermal pre-ignition agent. The components were weighed in the stated weight ratios (in percent by weight (% by weight)) in plastic containers and homogenized in a tumble mixer for 30 minutes.
  • Table 2 shows the deflagration points, friction and impact sensitivities of the mixtures.
  • the measurement of the friction and impact sensitivities was carried out according to methods of the Federal Institute for Materials Research (BAM), while the measurement of the deflagration points was carried out with the thermogravimetric analysis (Mettler) at a heating rate of 10 ° C. per minute.
  • Table 2 Overview of the deflagration temperatures, friction and impact sensitivities
  • Table 3 summarizes the weight losses and deflagration points after thermal stress (24 h, 125 ° C and 400 h, 110 ° C) of some of the mixtures selected from the examples.
  • the weight loss was measured analogously to the Holland test.
  • the measurement of the deflagration points was carried out by thermogravimetric analysis (Mettler) at a heating rate of 10 ° C. per minute.

Abstract

Produit de mise à feu à basse température de mise à feu qui contient en tant que constituants 20 à 50 % en poids de dinitrobenzofuroxane et 50 à 80 % en poids d'un agent oxydant et d'un composé contenant de l'azote.
EP15801695.6A 2014-11-10 2015-11-10 Produit de mise à feu à basse température de mise à feu Withdrawn EP3218330A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014016513 2014-11-10
PCT/EP2015/076245 WO2016075159A1 (fr) 2014-11-10 2015-11-10 Produit de mise à feu à basse température de mise à feu

Publications (1)

Publication Number Publication Date
EP3218330A1 true EP3218330A1 (fr) 2017-09-20

Family

ID=54707747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15801695.6A Withdrawn EP3218330A1 (fr) 2014-11-10 2015-11-10 Produit de mise à feu à basse température de mise à feu

Country Status (4)

Country Link
US (1) US20180127328A1 (fr)
EP (1) EP3218330A1 (fr)
DE (1) DE102015014428A1 (fr)
WO (1) WO2016075159A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3523266A4 (fr) * 2016-10-05 2020-06-10 Olin Corporation Compositions pyrotechniques
DE102017118416A1 (de) * 2017-08-11 2019-02-14 Ruag Ammotec Gmbh Pyrotechnische Trenneinrichtung, System zum elektrischen Laden einer elektrischen Energiezelle, Mobilgerät und Ladegerät
CN114539011B (zh) * 2022-02-21 2023-03-28 张延松 一种安全高效的高能膨胀剂及其制备方法与应用

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2693721B1 (fr) * 1992-07-20 1994-10-21 Ncs Pyrotechnie Technologies Charge d'amorçage à percussion annulaire et son procédé de fabrication.
DE19540278A1 (de) * 1995-10-28 1997-04-30 Dynamit Nobel Ag Blei- und Barium-freie Anzündsätze
US20010001970A1 (en) * 1995-10-28 2001-05-31 Rainer Hagel Lead- and barium-free propellant charges
WO1998003448A1 (fr) 1996-07-20 1998-01-29 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Fusible thermique
US6453816B2 (en) * 1996-07-20 2002-09-24 Dynamit Nobel Gmbh Explosivstoff-Und Systemtechnik Temperature fuse with lower detonation point
DE19805976C1 (de) 1998-02-13 1999-04-29 Nigu Chemie Gmbh Frühzündpulver für thermische Sicherungen für Airbag-Gasgeneratoren
WO1999048842A1 (fr) * 1998-03-20 1999-09-30 Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik Explosifs d'amorçage et amorces pouvant etre amorces par declenchement electrique
ATA75099A (de) * 1999-04-28 2001-03-15 Hirtenberger Ag Anzündmischung
US6230624B1 (en) * 1999-08-13 2001-05-15 Trw Inc. Igniter having a hot melt ignition droplet
US8784583B2 (en) * 2004-01-23 2014-07-22 Ra Brands, L.L.C. Priming mixtures for small arms

Also Published As

Publication number Publication date
WO2016075159A1 (fr) 2016-05-19
DE102015014428A1 (de) 2016-05-12
US20180127328A1 (en) 2018-05-10

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