US2020024211A1PendingUtilityA1

Pyrotechnic delay composition

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Assignee: NEXTER MUNITIONSPriority: Jan 17, 2018Filed: Jan 9, 2019Published: Jan 23, 2020
Est. expiryJan 17, 2038(~11.5 yrs left)· nominal 20-yr term from priority
Inventors:Arthur Biesse
C06C 5/06C06B 29/06C06B 33/12
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Claims

Abstract

A pyrotechnic delay composition comprising at least one oxidant and at least one reducing agent. This composition comprises tungsten as the first reducing agent, a first oxidant consisting of triiron tetraoxide, and a second oxidant having an oxygen content greater than that of the first oxidant.

Claims

exact text as granted — not AI-modified
1 . Pyrotechnic delay composition comprising at least one oxidant and at least one reducing agent, wherein the pyrotechnic delay composition comprises tungsten as the first reducing agent, a first oxidant consisting of triiron tetraoxide and a second oxidant having an oxygen content greater than that of the first oxidant. 
     
     
         2 . Pyrotechnic delay composition according to  claim 1 , wherein the second oxidant is selected from among the following oxidants: potassium perchlorate, barium peroxide, bismuth oxide, diiodine pentoxide. 
     
     
         3 . Pyrotechnic delay composition according to  claim 1 , wherein the pyrotechnic delay composition comprises a second reducing agent consisting of aluminum. 
     
     
         4 . Pyrotechnic delay composition according to  claim 1 , wherein the pyrotechnic delay composition comprises: from 20% to 60% by weight of tungsten, and from 30% to 70% by weight of triiron tetraoxide. 
     
     
         5 . Pyrotechnic delay composition according to  claim 4 , wherein the pyrotechnic delay composition comprises:
 20% to 60% by weight of tungsten,   30% to 70% by weight of triiron tetraoxide,   1% to 30% by weight of potassium perchlorate,   0% to 14% by weight of aluminum.   
     
     
         6 . Pyrotechnic delay composition according to  claim 5 , wherein the pyrotechnic delay composition comprises:
 30% to 40% by weight of tungsten,   45% to 55% by weight of triiron tetraoxide,   5% to 15% by weight of potassium perchlorate,   0% to 14% by weight of aluminum.   
     
     
         7 . Pyrotechnic delay composition according to  claim 6 , wherein the pyrotechnic delay composition comprises:
 39% by weight of tungsten,   50% by mass of triiron tetraoxide,   11% by weight of potassium perchlorate.   
     
     
         8 . Pyrotechnic delay composition according to  claim 6 , wherein the pyrotechnic delay composition comprises:
 31% by weight of tungsten,   8% by weight of aluminum,   50% by weight of triiron tetraoxide,   11% by weight of potassium perchlorate.   
     
     
         9 . Pyrotechnic delay composition according to  claim 5 , wherein the pyrotechnic delay composition comprises:
 25% by weight of tungsten,   14% by weight of aluminum,   50% by weight of triiron tetraoxide,   11% by weight of potassium perchlorate.   
     
     
         10 . Pyrotechnic delay composition according to  claim 5 , wherein the pyrotechnic delay composition comprises:
 25% by weight of tungsten,   8% by weight of aluminum,   56% by weight of triiron tetraoxide,   11% by weight of potassium perchlorate.   
     
     
         11 . Pyrotechnic delay composition according to  claim 6 , wherein the pyrotechnic delay composition comprises:
 38% by weight of tungsten,   1% by weight of aluminum,   50% by weight of triiron tetraoxide,   11% by weight of potassium perchlorate.   
     
     
         12 . Pyrotechnic delay composition according to  claim 6 , wherein the pyrotechnic delay composition comprises:
 35% by weight of tungsten,   4% by weight of aluminum,   50% by weight of triiron tetraoxide,   11% by weight of potassium perchlorate.

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