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Iron oxide as a coolant and residue former in an organic propellant

  • US 5,817,972 A
  • Filed: 11/13/1995
  • Issued: 10/06/1998
  • Est. Priority Date: 11/13/1995
  • Status: Expired due to Fees
First Claim
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1. A gas generating composition for inflating a vehicle occupant restraint comprising:

  • (a) a dicyandiamide fuel;

    (b) an oxidant for the fuel;

    (c) coolant in an amount in the range of about 10% to about 25% based on the weight of the gas generating composition to cool the products of combustion of (a) and (b), said coolant being iron oxide (Fe2 O3) and having a major portion which is substantially free of catalytic or paint grade iron oxide.

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