EP0710637A1 - Pyrotechnisches folienartiges Material - Google Patents
Pyrotechnisches folienartiges Material Download PDFInfo
- 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
Links
Images
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)
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 |
GB9423445 | 1994-11-21 | ||
GB9423445A GB9423445D0 (en) | 1994-11-21 | 1994-11-21 | Pyrotechnic sheet material |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0710637A1 true EP0710637A1 (de) | 1996-05-08 |
Family
ID=26305939
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95307127A Ceased EP0710637A1 (de) | 1994-11-07 | 1995-10-09 | Pyrotechnisches folienartiges Material |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0710637A1 (de) |
JP (1) | JPH08217588A (de) |
KR (1) | KR960017594A (de) |
AU (1) | AU3663795A (de) |
CA (1) | CA2161279A1 (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2312492A (en) * | 1996-04-26 | 1997-10-29 | Ici Canada | Hybrid inflatator for an air bag |
EP0805073A2 (de) * | 1996-05-01 | 1997-11-05 | Morton International, Inc. | Haftbare Selbstzündungs-Folie |
WO1999010301A1 (en) * | 1997-08-29 | 1999-03-04 | The Ensign-Bickford Company | Signal transmission fuse and method of making the same |
US6527297B1 (en) | 2000-08-30 | 2003-03-04 | Autoliv Asp, Inc. | Inflator device ignition of gas generant |
WO2005016850A2 (en) * | 2002-07-12 | 2005-02-24 | The Regents Of The University Of California | Nano-laminate-based ignitors |
WO2009042287A1 (en) * | 2007-09-25 | 2009-04-02 | Ensign-Bickford Aerospace & Defense Company | Heat generating structures |
US7951247B2 (en) | 2002-10-01 | 2011-05-31 | Lawrence Livermore National Security, Llc | Nano-laminate-based ignitors |
Citations (6)
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 (en) | 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 | Pyrotechnic materials |
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 |
GB2282136A (en) | 1993-09-27 | 1995-03-29 | Ici Plc | Pyrotechnic material |
-
1995
- 1995-10-09 EP EP95307127A patent/EP0710637A1/de not_active Ceased
- 1995-10-24 CA CA002161279A patent/CA2161279A1/en not_active Abandoned
- 1995-11-03 AU AU36637/95A patent/AU3663795A/en not_active Abandoned
- 1995-11-06 KR KR1019950039860A patent/KR960017594A/ko not_active IP Right Cessation
- 1995-11-07 JP JP7288765A patent/JPH08217588A/ja active Pending
Patent Citations (8)
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 (en) | 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 | Pyrotechnic materials |
WO1990010611A1 (en) | 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 | Pyrotechnic materials |
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 |
GB2282136A (en) | 1993-09-27 | 1995-03-29 | Ici Plc | Pyrotechnic material |
EP0645354A1 (de) * | 1993-09-27 | 1995-03-29 | Imperial Chemical Industries Plc | Pyrotechnisches Material |
Cited By (15)
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 (de) * | 1996-05-01 | 1999-05-06 | Morton International, Inc. | Haftbare Selbstzündungs-Folie |
EP0805073A2 (de) * | 1996-05-01 | 1997-11-05 | Morton International, Inc. | Haftbare Selbstzündungs-Folie |
US6347566B1 (en) * | 1997-08-29 | 2002-02-19 | The Ensign-Bickford Company | Method of making a signal transmission fuse |
WO1999010300A3 (en) * | 1997-08-29 | 1999-06-10 | Ensign Bickford Co | Signal transmission fuse and method of making the same |
US6170398B1 (en) | 1997-08-29 | 2001-01-09 | The Ensign-Bickford Company | Signal transmission fuse |
WO1999010301A1 (en) * | 1997-08-29 | 1999-03-04 | The Ensign-Bickford Company | Signal transmission fuse and method of making the same |
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 |
US6527297B1 (en) | 2000-08-30 | 2003-03-04 | 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 |
US6739621B2 (en) | 2000-08-30 | 2004-05-25 | Autoliv Asp, Inc. | Inflator device ignition of gas generant |
WO2005016850A2 (en) * | 2002-07-12 | 2005-02-24 | The Regents Of The University Of California | Nano-laminate-based ignitors |
WO2005016850A3 (en) * | 2002-07-12 | 2005-06-16 | Univ California | Nano-laminate-based ignitors |
US7951247B2 (en) | 2002-10-01 | 2011-05-31 | Lawrence Livermore National Security, Llc | Nano-laminate-based ignitors |
WO2009042287A1 (en) * | 2007-09-25 | 2009-04-02 | Ensign-Bickford Aerospace & Defense Company | Heat generating structures |
Also Published As
Publication number | Publication date |
---|---|
JPH08217588A (ja) | 1996-08-27 |
CA2161279A1 (en) | 1996-05-08 |
KR960017594A (ko) | 1996-06-17 |
AU3663795A (en) | 1996-05-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE ES FR GB IT SE |
|
17P | Request for examination filed |
Effective date: 19960704 |
|
17Q | First examination report despatched |
Effective date: 19970402 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 19981108 |