Low-smoke pyrotechnic compositions
First Claim
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1. 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.
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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.
39 Citations
14 Claims
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1. A low-smoke producing pyrotechnic composition comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A low-smoke producing pyrotechnic composition comprising:
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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.
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10. A low-smoke producing pyrotechnic composition comprising:
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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.
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11. A low-smoke producing pyrotechnic composition comprising:
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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.
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12. A low-smoke producing pyrotechnic composition comprising:
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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.
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13. A low-smoke producing pyrotechnic composition comprising:
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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.
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14. A low-smoke producing pyrotechnic composition comprising:
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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.
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Specification
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Current AssigneeLos Alamos National Security LLC (Government of the United States of America)
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Original AssigneeRegents of the University of California (University of California)
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InventorsHiskey, Michael A., Naud, Darren L., Chavez, David E.
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Primary Examiner(s)Carone, Michael J.
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Assistant Examiner(s)FELTON, AILEEN BAKER
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Application NumberUS09/295,728Time in Patent Office721 DaysField of Search149/36, 149/76, 149/109.2, 102/335, 102/334US Class Current149/36CPC Class CodesC06B 43/00 Compositions characterised ...C06B 47/08 a component containing hydr...C06C 15/00 Pyrophoric compositions; Fl...
