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EP0710637A1 - Matière pyrotechnique en feuille - Google Patents

Matière pyrotechnique en feuille Download PDF

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Publication number
EP0710637A1
EP0710637A1 EP95307127A EP95307127A EP0710637A1 EP 0710637 A1 EP0710637 A1 EP 0710637A1 EP 95307127 A EP95307127 A EP 95307127A EP 95307127 A EP95307127 A EP 95307127A EP 0710637 A1 EP0710637 A1 EP 0710637A1
Authority
EP
European Patent Office
Prior art keywords
substrate
layer
oxidizable
gas
generating
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.)
Ceased
Application number
EP95307127A
Other languages
German (de)
English (en)
Inventor
Sek Kwan Chan
Steven John Graham
Graeme Allan Leiper
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.)
PPG Architectural Coatings Canada Inc
Imperial Chemical Industries Ltd
Original Assignee
ICI Canada Inc
Imperial Chemical Industries Ltd
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
Priority claimed from GB9422402A external-priority patent/GB9422402D0/en
Priority claimed from GB9423445A external-priority patent/GB9423445D0/en
Application filed by ICI Canada Inc, Imperial Chemical Industries Ltd filed Critical ICI Canada Inc
Publication of EP0710637A1 publication Critical patent/EP0710637A1/fr
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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
    • C06B45/18—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component
    • C06B45/20—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component
    • C06B45/22—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component the coating containing an organic compound
    • C06B45/24—Compositions or products which are defined by structure or arrangement of component of product comprising a coated component the component base containing an organic explosive or an organic thermic component the coating containing an organic compound the compound being an organic explosive or an organic thermic component
    • 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
    • C06B45/12—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones
    • C06B45/14—Compositions or products which are defined by structure or arrangement of component of product having contiguous layers or zones a layer or zone containing an inorganic explosive or an inorganic explosive or an inorganic thermic component

Definitions

  • this effect can be achieved by the application of the deflagration material over a small portion of the pyrotechnic sheet material adjacent to an ignition point and the amount of deflagrating material need not be sufficient to produce a significant amount of gaseous products on combustion.
  • the preferred oxidizing substrate comprises polymeric film preferably containing atoms chemically bound therein selected from the group consisting of halogens (especially fluorine), oxygen, sulphur, nitrogen and phosphorous.
  • One preferred film substrate comprises fluoropolymer such as polytetrafluoroethylene (PTFE) which produces a high energy pyrotechnic sheet, but other suitable polymeric films include those comprising polychlorotrifluoroethylene, polyhexafluoropropylene, copolymers of trifluoroethylene and hexafluoropropylene, copolymers of trifluoroethylene and tetrafluoroethylene, copolymers of hexafluoropropylene and tetrafluoroethylene, copolymers of hexafluoropropylene and vinylidene fluoride, copolymers of tetrafluoroethylene and partially fluorinated propylene, copolymers of chlorotrifluoroethylene and vinylidene
  • a preferred pyrotechnic sheet of the invention has discontinuous portions in the oxidizing substrate and/or the layer of oxidizable material, preferably in the oxidizable material, these portions having flame-permeable apertures through which the interface between the oxidising substrate and the oxidizable material is exposed as described in United Kingdom patent specification no.GB 2,282,136A which is incorporated herein by reference. Such exposure of portions of the interface enhances the ease of ignition and rate of combustion of the pyrotechnic sheet.
  • the substrate and the oxidizable material are permanently deformable and have different strains for rupture value thereby enabling one of the materials to be ruptured by stretching to expose flame-permeable apertures at the interface.
  • the oxidizable material may advantageously comprise metal selected from the group consisting of lithium, sodium, magnesium, beryllium, calcium, strontium, barium, aluminium, titanium, zirconium and alloys thereof, which metal may be advantageously be vapour-deposited on the substrate.
  • a metal layer is especially advantageous as it significantly enhances the dimensional stability of the pyrotechnic sheet and is easily ruptured.
  • a most preferred metal for high heat generation is magnesium or an alloy thereof preferably coated on to a substrate film comprising fluoropolymer.
  • the ratio of metal to the substrate of oxidizing polymeric film is substantially stoichiometric or there is a small excess of metal at the location of the film underlying the metal.
  • the reaction between PTFE and magnesium can be represented empirically as (C2F4)n - 2nMg --> 2nMgF2 + 2nC This reaction releases 5.98 megajoules/kilogram of reactant pyrotechnic material.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Automotive Seat Belt Assembly (AREA)
EP95307127A 1994-11-07 1995-10-09 Matière pyrotechnique en feuille Ceased EP0710637A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB9422402 1994-11-07
GB9422402A GB9422402D0 (en) 1994-11-07 1994-11-07 Pyrotechnic sheet material
GB9423445A GB9423445D0 (en) 1994-11-21 1994-11-21 Pyrotechnic sheet material
GB9423445 1994-11-21

Publications (1)

Publication Number Publication Date
EP0710637A1 true EP0710637A1 (fr) 1996-05-08

Family

ID=26305939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95307127A Ceased EP0710637A1 (fr) 1994-11-07 1995-10-09 Matière pyrotechnique en feuille

Country Status (5)

Country Link
EP (1) EP0710637A1 (fr)
JP (1) JPH08217588A (fr)
KR (1) KR960017594A (fr)
AU (1) AU3663795A (fr)
CA (1) CA2161279A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2312492A (en) * 1996-04-26 1997-10-29 Ici Canada Hybrid inflatator for an air bag
WO1999010301A1 (fr) * 1997-08-29 1999-03-04 The Ensign-Bickford Company Meche de transmission de signaux et procede de fabrication de cette meche
EP0805073A3 (fr) * 1996-05-01 1999-05-06 Morton International, Inc. Feuille à auto-allumage adhésive
US6527297B1 (en) 2000-08-30 2003-03-04 Autoliv Asp, Inc. Inflator device ignition of gas generant
WO2005016850A3 (fr) * 2002-07-12 2005-06-16 Univ California Inflammateurs a base de nanolamines
WO2009042287A1 (fr) * 2007-09-25 2009-04-02 Ensign-Bickford Aerospace & Defense Company Structures génératrices de chaleur
US7951247B2 (en) 2002-10-01 2011-05-31 Lawrence Livermore National Security, Llc Nano-laminate-based ignitors

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213793A (en) * 1961-07-24 1965-10-26 Kimberly Clark Co Manufacture of cellulosic propellant
US3549436A (en) * 1967-12-13 1970-12-22 Gen Electric Layered propellant composition consisting of an electrical conductor and an insulator
WO1990010724A1 (fr) 1989-03-13 1990-09-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Matieres pyrotechniques
GB2269379A (en) * 1992-08-06 1994-02-09 Ici Plc Pyrotechnic sheet metal
GB2269380A (en) * 1992-08-04 1994-02-09 Ici Plc Pyrotechnic sheet material
EP0645354A1 (fr) * 1993-09-27 1995-03-29 Imperial Chemical Industries Plc Matière pyrotechnique

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3213793A (en) * 1961-07-24 1965-10-26 Kimberly Clark Co Manufacture of cellulosic propellant
US3549436A (en) * 1967-12-13 1970-12-22 Gen Electric Layered propellant composition consisting of an electrical conductor and an insulator
WO1990010724A1 (fr) 1989-03-13 1990-09-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Matieres pyrotechniques
WO1990010611A1 (fr) 1989-03-13 1990-09-20 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Matieres pyrotechniques
GB2269380A (en) * 1992-08-04 1994-02-09 Ici Plc Pyrotechnic sheet material
GB2269379A (en) * 1992-08-06 1994-02-09 Ici Plc Pyrotechnic sheet metal
EP0645354A1 (fr) * 1993-09-27 1995-03-29 Imperial Chemical Industries Plc Matière pyrotechnique
GB2282136A (en) 1993-09-27 1995-03-29 Ici Plc Pyrotechnic material

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2312492A (en) * 1996-04-26 1997-10-29 Ici Canada Hybrid inflatator for an air bag
EP0805073A3 (fr) * 1996-05-01 1999-05-06 Morton International, Inc. Feuille à auto-allumage adhésive
CN1301940C (zh) * 1997-08-29 2007-02-28 戴诺.诺贝尔公司 信号传输引信及其制备方法
WO1999010301A1 (fr) * 1997-08-29 1999-03-04 The Ensign-Bickford Company Meche de transmission de signaux et procede de fabrication de cette meche
WO1999010300A3 (fr) * 1997-08-29 1999-06-10 Ensign Bickford Co Meche a transmission de signaux et procede de fabrication
US6170398B1 (en) 1997-08-29 2001-01-09 The Ensign-Bickford Company Signal transmission fuse
US6347566B1 (en) * 1997-08-29 2002-02-19 The Ensign-Bickford Company Method of making a signal transmission fuse
US6527297B1 (en) 2000-08-30 2003-03-04 Autoliv Asp, Inc. Inflator device ignition of gas generant
US6739621B2 (en) 2000-08-30 2004-05-25 Autoliv Asp, Inc. Inflator device ignition of gas generant
US6666476B2 (en) 2000-08-30 2003-12-23 Autoliv Asp, Inc. Expandable fluid inflator device with pyrotechnic coating
WO2005016850A3 (fr) * 2002-07-12 2005-06-16 Univ California Inflammateurs a base de nanolamines
US7951247B2 (en) 2002-10-01 2011-05-31 Lawrence Livermore National Security, Llc Nano-laminate-based ignitors
WO2009042287A1 (fr) * 2007-09-25 2009-04-02 Ensign-Bickford Aerospace & Defense Company Structures génératrices de chaleur

Also Published As

Publication number Publication date
AU3663795A (en) 1996-05-30
CA2161279A1 (fr) 1996-05-08
KR960017594A (ko) 1996-06-17
JPH08217588A (ja) 1996-08-27

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