Low-smoke pyrotechnic compositions
AssigneeThe Regents of the University of California
InventorsMichael A. Hiskey, David E. Chavez, Darren L. Naud
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Abstract
A low-smoke producing pyrotechnic composition including a high-nitrogen content, low-carbon content energetic material, an oxidant and a colorant is disclosed together with the use of selected metal salts of a high-nitrogen content, low-carbon content energetic material as the colorant.
Claims14
A low-smoke producing pyrotechnic composition comprising:
- a high-nitrogen content, low-carbon content energetic material selected from the group consisting of 5,5′-bis-1H-tetrazole, salts of 5,5′-bis-1H-tetrazole, bis(1(2)H-tetrazol-5-yl)-amine, the monohydrate of bis(1(2)H-tetrazol-5-yl)-amine, salts of bis(1(2)H-tetrazol-5-yl)-amine;
- an oxidizing agent;
- and,
- a barium salt as a colorant.
A low-smoke producing pyrotechnic composition comprising:
- a high-nitrogen content, low-carbon content energetic material of the 3,6-dihydrazino-s-tetrazinium salt of 5,5′-bis-1H-tetrazole dihydrate;
- an oxidizing agent;
- and,
- a colorant.
A low-smoke producing pyrotechnic composition comprising:
- about 46.5 weight percent of bis(1(2)H-tetrazol-5-yl)-amine monohydrate;
- about 46.5 weight percent of ammonium perchlorate;
- about 0.3 weight percent of a copper salt of bis(1(2)H-tetrazol-5-yl)-amine dihydrate;
- and,
- about 6.7 weight percent of a barium salt of 5,5′-Bis-1H-tetrazolate tetrahydrate.
A low-smoke producing pyrotechnic composition comprising:
- about 47.5 weight percent of bis(1(2)H-tetrazol-5-yl)-amine monohydrate;
- about 47.5 weight percent of ammonium perchlorate;
- about 2.1 weight percent of a copper salt of bis(1(2)H-tetrazol-5-yl)-amine dihydrate;
- and,
- about 3.1 weight percent of a strontium salt of bis(1(2)H-tetrazol-5-yl)-amine tetrahydrate.
A low-smoke producing pyrotechnic composition comprising:
- about 46.5 weight percent of a high-nitrogen content, low-carbon content energetic material selected from the group consisting of the dihydroxylammonium salt of 5,5′-Bis-1H-tetrazolate, the hydroxylammonium salt of 5,5′-Bis-1H-tetrazolate, and the 3,6-dihydrazino-s-tetrazinium salt of 5,5′-Bis-1H-tetrazolate dihydrate;
- about 46.5 weight percent of ammonium perchlorate;
- and,
- about 7 weight percent of a colorant selected from the group consisting of the barium salt of 5,5′-Bis-1H-tetrazolate tetrahydrate and barium fluoride.
A low-smoke producing pyrotechnic composition comprising:
- from about 47.5 to about 49.75 weight percent of a high-nitrogen content, low-carbon content energetic material selected from the group consisting of bis(1(2)H-tetrazol-5-yl)-amine monohydrate, 3,6-dihydrazino-s-tetrazine and the dihydroxylammonium salt of 5,5′-Bis-1H-tetrazolate;
- from about 47.5 to about 49.75 weight percent of ammonium perchlorate;
- and,
- from about 0.5 to about 5.0 weight percent of a strontium salt of 5,5′-Bis-1H-tetrazolate tetrahydrate.
A low-smoke producing pyrotechnic composition comprising:
- from about 46.25 to about 49.5 weight percent of a high-nitrogen content, low-carbon content energetic material selected from the group consisting of bis(1(2)H-tetrazol-5-yl)-amine monohydrate, 3,6-dihydrazino-s-tetrazine, the hydroxylammonium salt of 5,5′-Bis-1H-tetrazolate, the dihydroxylammonium salt of 5,5′-Bis-1H-tetrazolate and the 3,6-dihydrazino-s-tetrazinium salt of 5,5′-Bis-1H-tetrazolate dihydrate;
- from about 46.25 to about 49.5 weight percent of ammonium perchlorate;
- and,
- from about 1.0 to about 7.0 weight percent of a copper salt of 5,5′-Bis-1H-tetrazolate dihydrate.
Dependencies are inferred from the claim text.