Perchlorate free flash bang compositions for pyrotechnic training rounds
First Claim
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1. A perchlorate-free solid pyrotechnic flash bang composition consisting essentially of:
- an oxidizer component consisting essentially of;
an oxidizer component consisting essentially of from about forty-five weight percent (45.0%) to about sixty weight percent (60.0%) potassium nitrate, and wherein the mean particle size of the oxidizer particles is from about twenty microns (20.0 μ
m) to about thirty-five microns (35 μ
m);
a pH stabilizer component consisting essentially of from about five-tenths of one weight percent (0.5%) to about one an one-half weight percent (1.5%) boric acid; and
a free flow/anti-caking component consisting essentially of from about two-tenths of one weight percent (0.2%) to about eight-tenths of one weight percent (0.8%), and has a mean particle length of from about one-tenths micron (0.1 μ
m) to about four-tenths micron (0.4 μ
m) and consists essentially of silicon dioxide;
a fuel component consisting essentially of;
a metallic fuel component consisting essentially of from about thirty-five weight percent (35%) to about forty-five weight percent (45.0%) flaked aluminum particles coated with carbon or graphite comprising up to about one-half of one weight percent (0.5%) of the composition, and wherein said flaked aluminum particles have a mean particle size from about three-tenths micron (0.3 μ
m) to about twenty-five microns (25.0 μ
m), and a surface area of from about seven square meters per gram (7 m2/g) to about twelve square meters per gram (12 m2/g); and
a non-metallic fuel component consisting essentially of about five weight percent (5.0%) to about ten weight percent (10.0%) of a non-metallic fuel consisting essentially of sulfur, wherein said sulfur has a mean particle size no greater than about fifty microns (50.0 μ
m); and
a ballistic accelerant component consisting essentially of from about zero weight percent (0.0%) to about ten weight percent (10.0%), said ballistic accelerant component selected from the group consisting of nitrocellulose, black powder, and commercially available single or double base propellants.
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Abstract
A perchlorate-free solid pyrotechnic flash bang composition is disclosed, which comprises an oxidizer component selected from the group comprising potassium nitrate, strontium nitrate, and basic copper nitrate and combinations thereof, a metallic fuel component selected from the group comprising aluminum, magnesium, magnesium-aluminum alloys, silicon, zirconium, and combinations thereof, and a non-metallic fuel component comprising sulfur. The flash bang pyrotechnic composition may also further comprise a ballistic accelerant component, a pH stabilizer, and a free flow/anti-caking component.
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Citations
2 Claims
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1. A perchlorate-free solid pyrotechnic flash bang composition consisting essentially of:
-
an oxidizer component consisting essentially of; an oxidizer component consisting essentially of from about forty-five weight percent (45.0%) to about sixty weight percent (60.0%) potassium nitrate, and wherein the mean particle size of the oxidizer particles is from about twenty microns (20.0 μ
m) to about thirty-five microns (35 μ
m);a pH stabilizer component consisting essentially of from about five-tenths of one weight percent (0.5%) to about one an one-half weight percent (1.5%) boric acid; and a free flow/anti-caking component consisting essentially of from about two-tenths of one weight percent (0.2%) to about eight-tenths of one weight percent (0.8%), and has a mean particle length of from about one-tenths micron (0.1 μ
m) to about four-tenths micron (0.4 μ
m) and consists essentially of silicon dioxide;a fuel component consisting essentially of; a metallic fuel component consisting essentially of from about thirty-five weight percent (35%) to about forty-five weight percent (45.0%) flaked aluminum particles coated with carbon or graphite comprising up to about one-half of one weight percent (0.5%) of the composition, and wherein said flaked aluminum particles have a mean particle size from about three-tenths micron (0.3 μ
m) to about twenty-five microns (25.0 μ
m), and a surface area of from about seven square meters per gram (7 m2/g) to about twelve square meters per gram (12 m2/g); anda non-metallic fuel component consisting essentially of about five weight percent (5.0%) to about ten weight percent (10.0%) of a non-metallic fuel consisting essentially of sulfur, wherein said sulfur has a mean particle size no greater than about fifty microns (50.0 μ
m); anda ballistic accelerant component consisting essentially of from about zero weight percent (0.0%) to about ten weight percent (10.0%), said ballistic accelerant component selected from the group consisting of nitrocellulose, black powder, and commercially available single or double base propellants. - View Dependent Claims (2)
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Specification
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Current AssigneeUnited States Secretary of the Army
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Original AssigneeThe United States Of America As Represented By The Secretary Of The Army
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InventorsPoret, Jay C., Motyka, Mark, Chen, Gary
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Primary Examiner(s)Lorengo; Jerry
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Assistant Examiner(s)McDonough; James E
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Application NumberUS10/907,206Time in Patent Office1,615 DaysField of Search149/37, 149/43, 149/45, 149/61, 149/62, 149/63US Class Current149/37CPC Class CodesC06B 33/04 the material being an inorg...C06C 15/00 Pyrophoric compositions; Fl...
