Pyrotechnic fire extinguishing method

• US 4,601,344 A
• Filed: 09/29/1983
• Issued: 07/22/1986
• Est. Priority Date: 09/29/1983
• Status: Expired due to Term

• Current Assignee: the united states of america as represented by the secretary of the navy
• Original Assignee: the united states of america as represented by the secretary of the navy
• Inventors: Chan, May L., Reed, Russell Jr., Moore, Kenneth L.
• Primary Examiner(s): Miller, Edward A.
• Application Number:
  US06/548,899
• Time in Patent Office: 1,027 Days
• Field of Search: 252/4, 169/47, 169/44, 149/19.6, 102/531
• US Class Current: 169/47
• CPC Class Codes: A62C 5/006 Extinguishants produced by combustion
• CPC Class Codes: C06D 5/06 by reaction of two or more solids

Abstract

A gas generating composition containing glycidyl azide polymer and a high trogen content additive selected from the group consisting of guanylaminotetrazole nitrate, bis(triaminoguanidinium)5,5'"'"'azotetrazole, ammonium 5-nitraminotetrazole and high bulk density nitro guanidine generates large quantities of nitrogen gas upon burning and can be used to extinguish fires.

Claims

1. A method of extinguishing a fire comprising the steps of:

providing a gas generating composition comprises glycidyl azide polymer and a high nitrogen content additive selected from the group consisting of guanylaminotetrazole nitrate, bis(triaminoguanidium) 5,5'"'"'-azotetrazole, ammonium 5-nitraminotetrazole and high bulk density nitro guanidine in a reservoir;

igniting said composition to generate nitrogen gas; and

conveying said nitrogen gas from said reservoir to said fire.

2. A method of extinguishing a fire according to claim 1 wherein said high nitrogen content additive is guanylaminotetrazole nitrate.

3. A method of extinguishing a fire according to claim 1 wherein said high nitrogen content is ammonium 5-nitraminotetrazole.

4. A method of extinguishing a fire according to claim 1 wherein said high nitrogen content additive is high bulk density nitro guanidine.

5. A method of extinguishing a fire according to claim 1 wherein said high nitrogen content additive is bis(triaminoguanidinium) 5,5'"'"'-azotetrazole.

6. A method of extinguishing a fire according to claim 1 wherein said composition comprises about 5 to 50 weight percent glycidyl azide polymer and 50 to 95 weight percent additive.