US2004216824A1PendingUtilityA1

Gas generating mixtures

44
Assignee: BLEY ULRICHPriority: Sep 13, 1999Filed: Mar 19, 2004Published: Nov 4, 2004
Est. expirySep 13, 2019(expired)· nominal 20-yr term from priority
Inventors:Ulrich BleyRainer HagelSimon LechnerKlaus Redecker
C06D 5/06C06B 21/0066C06B 23/005
44
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Claims

Abstract

Producing gas-generating mixtures and gas-generating mixtures produced thereby.

Claims

exact text as granted — not AI-modified
1 - 14 . (canceled).  
     
     
         15 . A method for producing gas generating mixtures comprising_grinding a nitrogenous fuel together with an oxidizing agent and optionally additional additives, in the presence of at least one passivator, wherein a portion of said oxidizing agent acts as a passivator.  
     
     
         16 . The method according to  claim 15 , wherein said passivator is at least one friction agent selected from the group consisting of iron oxide, aluminum oxide, tin dioxide and titanium dioxide.  
     
     
         17 . The method according to  claim 15 , wherein said passivator is a burn moderator selected from the group consisting of a metal, metal oxide, metal carbonate and metal sulfide.  
     
     
         18 . The method according to  claim 15 , wherein said oxidizing agent is selected from the group consisting of tungsten trioxide, cerium-IV oxide, ammonium cerium nitrate and luteonitrate.  
     
     
         19 . The method according to  claim 15 , wherein the mixture comprises between 1 and 15 wt.-% of the passivator.  
     
     
         20 . The method according to  claim 25 , wherein said grinding is conducted with a ball or pinned disk mill.  
     
     
         21 . The method according to  claim 15 , wherein the components are ground to an average grain size of <20 μm.  
     
     
         22 . The method according to  claim 15 , wherein said fuel is selected from the group consisting of tetrazoles, triazoles, triazines, cyanic acid, ureas, derivatives thereof and salts thereof.  
     
     
         23 . The method according to  claim 15 , wherein said fuel is selected from the group consisting of nitroguanidine and 5-aminotetrazole.  
     
     
         24 . The method according to  claim 15 , wherein said oxidizing agent is a nitrate.  
     
     
         25 . The method according to  claim 15 , wherein said oxidizing agent is selected from the group consisting of iron oxide, tungsten trioxide, cerium-IV oxide, ammonium cerium nitrate and luteonitrate.  
     
     
         26 . A gas generating agent comprising at least one nitrogen-containing fuel, at least one oxidizing agent, optionally an additional, and at least one passivator, prepared by the process of  claim 15 .  
     
     
         27 . The gas generating agent according to  claim 26 , wherein said fuel is nitroguanidine and said oxidizing agent is an alkali nitrate.  
     
     
         28 . The gas generating agent according to  claim 27 , wherein said passivator is iron oxide.  
     
     
         29 . The method according to  claim 15 , wherein the components are ground to an average grain size of 10 to 15 μm.  
     
     
         30 . The method according to  claim 15 , wherein said oxidizing agent is at last one nitrate selected from the group consisting of ammonium nitrate, an alkali metal nitrate or an alkaline earth metal nitrate.  
     
     
         31 . The method of  claim 30 , wherein said nitrate is at least one nitrate selected from the group consisting of lithium nitrate, sodium nitrate, potassium nitrate and strontium nitrate.

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