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Gas generant compositions

  • US 5,431,103 A
  • Filed: 09/21/1994
  • Issued: 07/11/1995
  • Est. Priority Date: 12/10/1993
  • Status: Expired due to Term
First Claim
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1. A method of producing high volumes of gas to an automotive airbag during a vehicular collision and also provide for generation of high volumes of gas during vehicular fire conditions, the method comprising providing an inflator unit comprising a housing, gas generant contained within said housing, means for igniting said gas generant during a vehicular collision, and means to vent gases generated by gas generant combustion to the airbag, said gas generant comprising between about 20 and about 40 wt % of fuel, said fuel comprising a tetrazole and/or triazole compound at between about 50 and about 85 wt % of said fuel and a water-soluble fuel at between about 15 and about 50 wt % of said fuel;

  • between about 20 and about 80 wt % of oxidizer, at least about 20 wt % and up to 100% of said oxidizer being a transition metal oxide or mixture of transition metal oxides, the balance of said oxidizer being an alkali and/or alkaline earth metal nitrate, chlorate, perchlorate or mixture thereof; and

    , any balance comprising additional gas generant-compatible components, said gas generant autoigniting at temperatures of between about 155°

    C. and about 180°

    C., whereby autoignition occurs in the absence of other autoignition material.

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