WO1998006682A3 - Selective non-catalytic reduction (sncr) of toxic gaseous effluents in airbag inflators - Google Patents

Selective non-catalytic reduction (sncr) of toxic gaseous effluents in airbag inflators Download PDF

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Publication number
WO1998006682A3
WO1998006682A3 PCT/US1997/013501 US9713501W WO9806682A3 WO 1998006682 A3 WO1998006682 A3 WO 1998006682A3 US 9713501 W US9713501 W US 9713501W WO 9806682 A3 WO9806682 A3 WO 9806682A3
Authority
WO
WIPO (PCT)
Prior art keywords
gas
combustion
sncr
catalytic reduction
toxic
Prior art date
Application number
PCT/US1997/013501
Other languages
French (fr)
Other versions
WO1998006682A2 (en
Inventor
Sean P Burns
Larry A Moquin
Paresh S Khandhadia
Original Assignee
Automotive Systems Lab
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 Automotive Systems Lab filed Critical Automotive Systems Lab
Priority to EP97937077A priority Critical patent/EP0950040A4/en
Priority to AU39679/97A priority patent/AU3967997A/en
Priority to JP50978998A priority patent/JP3426250B2/en
Publication of WO1998006682A2 publication Critical patent/WO1998006682A2/en
Publication of WO1998006682A3 publication Critical patent/WO1998006682A3/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D5/00—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06B—EXPLOSIVES OR THERMIC COMPOSITIONS; MANUFACTURE THEREOF; USE OF SINGLE SUBSTANCES AS EXPLOSIVES
    • C06B23/00—Compositions characterised by non-explosive or non-thermic constituents
    • C06B23/02—Compositions characterised by non-explosive or non-thermic constituents for neutralising poisonous gases from explosives produced during blasting
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D5/00—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets
    • C06D5/06—Generation of pressure gas, e.g. for blasting cartridges, starting cartridges, rockets by reaction of two or more solids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Air Bags (AREA)

Abstract

NH2 radical-generating compounds, independent of the gas generant composition, reduce the toxicity of effluent gases produced by combustion of nonazide gas generating compositions used to inflate vehicle occupant restraint systems. By selective reactive of the NH2 radical with NO in the combustion gas, N2 is formed thereby decreasing the concentration of toxic nitrogen oxides therein. Placement of the reducing compounds proximate to the gas generant bed ensures intimate contact with the combustion gases, and yet still provides a noninvasive method of toxic gas reduction.
PCT/US1997/013501 1996-08-12 1997-07-31 Selective non-catalytic reduction (sncr) of toxic gaseous effluents in airbag inflators WO1998006682A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP97937077A EP0950040A4 (en) 1996-08-12 1997-07-31 Selective non-catalytic reduction (sncr) of toxic gaseous effluents in airbag inflators
AU39679/97A AU3967997A (en) 1996-08-12 1997-07-31 Selective non-catalytic reduction (sncr) of toxic gaseous effluents in airbag inflators
JP50978998A JP3426250B2 (en) 1996-08-12 1997-07-31 Selective non-catalytic reduction (SNCR) of toxic effluents of airbag inflators

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US69595496A 1996-08-12 1996-08-12
US08/695,954 1996-08-12

Publications (2)

Publication Number Publication Date
WO1998006682A2 WO1998006682A2 (en) 1998-02-19
WO1998006682A3 true WO1998006682A3 (en) 1998-07-09

Family

ID=24795123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1997/013501 WO1998006682A2 (en) 1996-08-12 1997-07-31 Selective non-catalytic reduction (sncr) of toxic gaseous effluents in airbag inflators

Country Status (6)

Country Link
EP (1) EP0950040A4 (en)
JP (1) JP3426250B2 (en)
KR (1) KR19990037956A (en)
AU (1) AU3967997A (en)
CA (1) CA2261969A1 (en)
WO (1) WO1998006682A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6332404B1 (en) 1996-04-15 2001-12-25 Autoliv Asp, Inc. Airbag inflation gas generation via a dissociating material and the moderation thereof
US7575648B1 (en) * 1996-08-12 2009-08-18 Automotive Systems Laboratory, Inc. Selective non-catalytic reduction (SNCR) of toxic gaseous effluents
CN1253538A (en) * 1997-05-02 2000-05-17 狄纳米特诺贝尔爆炸材料和系统技术股份有限公司 Reducing pollutant gases in gas mixtures from pyrotechnic reactions
CN1272102A (en) * 1998-04-20 2000-11-01 大赛璐化学工业株式会社 Method of reducing NOx
US6673173B1 (en) 2000-02-02 2004-01-06 Autoliv Asp. Inc. Gas generation with reduced NOx formation
US6634302B1 (en) 2000-02-02 2003-10-21 Autoliv Asp, Inc. Airbag inflation gas generation
JP2002302010A (en) * 2001-04-04 2002-10-15 Daicel Chem Ind Ltd Reduction method of nitrogen oxides for hybrid inflator
DE102004001625B4 (en) * 2004-01-12 2014-02-13 Trw Airbag Systems Gmbh A method of inflating an airbag and airbag module for use in the method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3715131A (en) * 1971-06-04 1973-02-06 Hercules Inc Chemical gas generating device for an automobile safety system
US3721102A (en) * 1969-12-04 1973-03-20 Rocket Research Corp Cool working gas generator
US3785674A (en) * 1971-06-14 1974-01-15 Rocket Research Corp Crash restraint nitrogen generating inflation system
US3797854A (en) * 1971-06-14 1974-03-19 Rocket Research Corp Crash restraint air generating inflation system
US5460668A (en) * 1994-07-11 1995-10-24 Automotive Systems Laboratory, Inc. Nonazide gas generating compositions with reduced toxicity upon combustion
US5501823A (en) * 1993-08-02 1996-03-26 Thiokol Corporation Preparation of anhydrous tetrazole gas generant compositions
US5538567A (en) * 1994-03-18 1996-07-23 Olin Corporation Gas generating propellant

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0519485A1 (en) * 1991-06-21 1992-12-23 Dynamit Nobel Aktiengesellschaft Propellant for gas generators
DE19505568A1 (en) * 1995-02-18 1996-08-22 Dynamit Nobel Ag Gas generating mixtures

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721102A (en) * 1969-12-04 1973-03-20 Rocket Research Corp Cool working gas generator
US3715131A (en) * 1971-06-04 1973-02-06 Hercules Inc Chemical gas generating device for an automobile safety system
US3785674A (en) * 1971-06-14 1974-01-15 Rocket Research Corp Crash restraint nitrogen generating inflation system
US3797854A (en) * 1971-06-14 1974-03-19 Rocket Research Corp Crash restraint air generating inflation system
US5501823A (en) * 1993-08-02 1996-03-26 Thiokol Corporation Preparation of anhydrous tetrazole gas generant compositions
US5538567A (en) * 1994-03-18 1996-07-23 Olin Corporation Gas generating propellant
US5460668A (en) * 1994-07-11 1995-10-24 Automotive Systems Laboratory, Inc. Nonazide gas generating compositions with reduced toxicity upon combustion

Also Published As

Publication number Publication date
JP3426250B2 (en) 2003-07-14
AU3967997A (en) 1998-03-06
WO1998006682A2 (en) 1998-02-19
EP0950040A2 (en) 1999-10-20
KR19990037956A (en) 1999-05-25
EP0950040A4 (en) 1999-12-22
CA2261969A1 (en) 1998-02-19
JP2000514395A (en) 2000-10-31

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