Stable, nitrogen-rich composition

• US 5,198,046 A
• Filed: 03/10/1992
• Issued: 03/30/1993
• Est. Priority Date: 03/14/1991
• Status: Expired due to Term

• Current Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Original Assignee: Fraunhofer Gesellschaft Zur Foerderung Der Angewandten Forsching E.V.
• Inventors: Wasmann, Friedrich-Wilhelm, Menke, Klaus, Bucerius, Klaus M.
• Primary Examiner(s): Miller, Edward A.
• Application Number:
  US07/848,929
• Time in Patent Office: 385 Days
• Field of Search: 534/765, 149/61, 149/36, 149/109.4
• US Class Current: 149/61
• CPC Class Codes: C06B 43/00 Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00
• CPC Class Codes: C06D 5/06 by reaction of two or more solids

Abstract

A stable, nitrogen-rich organic compound in the form of diguanidinium-5,5zotetrazolate having the empirical formula C₄ H₁₂ N₁₆, is with a pulverulent, chemically stable oxidizer as a pyrotechnic mixture for spontaneously generating environmentally friendly, non-toxic gases.

Claims

1. A pyrotechnic mixture for generating environmentally friendly, non-toxic gases, comprising diguanidinium- 5,5'"'"'-azotetrazolate (GZT) mixed with a pulverulent, chemically stable oxidizer.

2. A pyrotechnic mixture according to claim 1, wherein the oxidizer is KNO₃.

3. A pyrotechnic mixture according to claim 1 or 2, wherein the mixture is finely ground.

4. A pyrotechnic mixture according to claim 3, wherein more than 50% of the particles in the mixture have a particle diameter smaller than 15 μ

m.

5. A pyrotechnic mixture according to claim 1 or 2, wherein the mixture is compacted to blanks.

6. A pyrotechnic mixture according to claim 5, wherein organic or inorganic binders are added in a proportion up to 5% by weight for forming the blanks.

7. A pyrotechnic mixture according to claim 1, further comprising a catalytic burn-off regulator for controlling gas generation in a proportion of 0.1 to 5% by weight.

8. A pyrotechnic mixture according to claim 7, wherein the burn-off regulator is an oxide of heavy metals of auxiliary groups of the periodic system.

9. A pyrotechnic mixture according to claim 8, wherein the burn-off regulator is an oxide of heavy metals of auxiliary groups I or VIII of the periodic system of elements.

10. A pyrotechnic mixture according to claim 8 or 9, wherein the burn-off regulator is an iron oxide.

11. A pyrotechnic mixture according to claim 6, wherein the burn-off regulator at least one of organic or inorganic salts of heavy metals of auxiliary groups of the periodic system.

12. A pyrotechnic mixture according to claim 3, wherein the mixture is compacted to blanks.

13. A pyrotechnic mixture according to claim 4, wherein the mixture is compacted to blanks.

14. A method for generating environmentally friendly, non-toxic gases comprising reacting a pyrotechnic mixture comprising diguanidinium-5,5'"'"'-azotetrazolate (GZT) and a pulverulent, chemically stable oxidizer.