IP Library Granted Patent US 11,920,910
Granted Patent B2
US 11,920,910 · App. 14/190,417 · Granted Mar 5, 2024

Compositions usable as flare compositions, countermeasure devices containing the flare compositions, and related methods

Inventors: Daniel B. Nielson (Tremonton, UT); Curtis W. Fielding (Hyrum, UT)
Assignee: Northrop Grumman Systems Corporation
F42B4/26C06B33/06C06C15/00F41J2/02
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Quick Facts
Patent No.
US 11,920,910
App. No.
14/190,417
Granted
Mar 5, 2024
Kind
B2
Abstract

A composition comprising boron, potassium ferricyanide, and at least one of an oxidizer, a nitramine, a binder, and an additive. Also disclosed are additional compositions, countermeasure devices including the composition, and a method of using the countermeasure device.

Claims (77)

1. A composition comprising boron at from about 1 wt % to about 17.5 wt %, potassium ferricyanide at from about 1 wt % to about 8 wt %, potassium perchlorate at from about 30 wt % to about 60 wt %, an energetic binder, and one of dibutyltin dilaurate, triphenylbismuth, magnesium carbonate, or dibutyltin diacetate.

2. The composition of claim 1 , further comprising strontium nitrate.

3. The composition of claim 1 , wherein the energetic binder comprises glycidyl azide polymer.

4. The composition of claim 1 , further comprising calcium silicide.

5. The composition of claim 1 , comprising magnesium carbonate.

6. The composition of claim 1 , further comprising iron oxide.

7. The composition of claim 1 , further comprising at least one additive.

8. The composition of claim 7 , wherein the composition comprises 1,8-bis(dimethylamino)naphthalene and glycidyl azide polymer.

9. The composition of claim 7 , wherein the composition comprises iron oxide, and further comprises nitrocellulose.

10. A countermeasure device comprising a casing and a flare composition contained in the casing, the flare composition comprising boron at from about 1 wt % to about 17.5 wt %, potassium ferricyanide at from about 1 wt % to about 8 wt %, potassium perchlorate at from about 30 wt % to about 60 wt %, an energetic binder, and one of dibutyltin dilaurate, triphenylbismuth, magnesium carbonate, or dibutyltin diacetate.

11. A method of using a countermeasure device, comprising:

deploying a countermeasure device against a heat-seeking device, the countermeasure device

comprising a casing and a flare composition contained in the casing, the flare

composition consisting of:

boron at from about 1 wt % to about 17.5 wt %,

potassium

ferricyanide at from about 1 wt % to about 8 wt %,

potassium perchlorate at from about 30 wt % to about 60 wt %,

glycidyl azide polymer,

one of dibutyltin dilaurate, triphenylbismuth, magnesium carbonate, or dibutyltin diacetate at from about 0.1 wt % to about 1 wt %; and

one or more additives selected from the group consisting of:

an isocyanate or an epoxide,

strontium nitrate,

an amine base,

a nitramine,

nitrocellulose,

ball powder,

magnesium,

aluminum, and

one or more of an alkali metal ferricyanide and a potassium salt;

and

igniting the flare composition.

12. The composition of claim 1 , further comprising nitrocellulose.

13. The composition of claim 7 , wherein the at least one additive comprises iron oxide.

14. The composition of claim 1 , wherein the composition comprises glycidyl azide polymer.

15. The composition of claim 1 , wherein the composition comprises the potassium ferricyanide at from about 1 wt % to about 4 wt %.

16. The composition of claim 1 , further comprising a nitramine.

17. The composition of claim 16 , wherein the composition comprises cyclo-1,3,5-trimethylene-2,4,6-trinitramine and glycidyl azide polymer, and further comprises 1,8-bis(dimethylamino)naphthalene.

18. The composition of claim 16 , wherein the nitramine comprises cyclo-1,3,5-trimethylene-2,4,6-trinitramine.

19. A composition consisting of:

boron at from about 1 wt % to about 17.5 wt %;

potassium ferricyanide at from about 1 wt % to 8 wt %;

potassium perchlorate at from about 30 wt % to about 60 wt %;

glycidyl azide polymer;

one of dibutyltin dilaurate, triphenylbismuth, magnesium carbonate, or dibutyltin diacetate; and

one or more additives selected from the group consisting of:

an isocyanate or an epoxide,

strontium nitrate,

an amine base,

a nitramine,

nitrocellulose,

ball powder,

magnesium,

aluminum, and

one or more of an alkali metal ferricyanide and a potassium salt,

wherein the composition exhibits a fuel:oxidizer ratio of between about 1.4 and about 2.3.

20. A composition comprising boron, potassium ferricyanide, potassium perchlorate, glycidyl azide polymer, and 1,8-bis(dimethylamino)-naphthalene, the composition comprising the potassium ferricyanide at from 1% by weight to 8% by weight.

21. The composition of claim 7 , wherein the at least one additive comprises an amine base, a curative, iron oxide, or combinations thereof.

22. The composition of claim 16 , wherein the nitramine comprises cyclo-1,3,5-trimethylene-2,4,6-tri-nitramine.

23. A composition consisting of:

boron at from about 1 wt % to about 17.5 wt %;

potassium ferricyanide at from about 1 wt % to about 8 wt %;

potassium perchlorate at from about 30 wt % to about 60 wt %;

glycidyl azide polymer;

one of dibutyltin dilaurate, triphenylbismuth, magnesium carbonate, or dibutyltin diacetate at from about 0.1 wt % to about 1 wt %; and

one or more additives selected from the group consisting of:

an isocyanate or an epoxide,

strontium nitrate,

an amine base,

a nitramine,

nitrocellulose,

ball powder,

magnesium,

aluminum, and

one or more of an alkali metal ferricyanide and a potassium salt.

24. A composition consisting of boron at from about 1 wt % to about 17.5 wt %, potassium ferricyanide at from about 1 wt % to about 8 wt %, potassium perchlorate at from about 30 wt % to about 60 wt %, glycidyl azide polymer, a curative, and one of dibutyltin dilaurate, triphenylbismuth, magnesium carbonate, or dibutyltin diacetate.

25. The composition of claim 1 , comprising the one of dibutyltin dilaurate, triphenylbismuth, magnesium carbonate, or dibutyltin diacetate at from about 0.1 wt % to about 1 wt %.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 8, 2021
From: NORTHROP GRUMMAN INNOVATION SYSTEMS LLC
To: NORTHROP GRUMMAN SYSTEMS CORPORATION
Reel/Frame 055256/0892 →
CHANGE OF NAME Recorded Feb 4, 2021
From: NORTHROP GRUMMAN INNOVATION SYSTEMS, INC.
To: NORTHROP GRUMMAN INNOVATION SYSTEMS LLC
Reel/Frame 055223/0425 →
CHANGE OF NAME Recorded Nov 1, 2018
From: ORBITAL ATK, INC.
To: NORTHROP GRUMMAN INNOVATION SYSTEMS, INC.
Reel/Frame 047400/0381 →
TERMINATION AND RELEASE OF SECURITY INTEREST IN PATENTS Recorded Jun 6, 2018
From: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
To: ORBITAL ATK, INC.
Reel/Frame 046477/0874 →
SECURITY AGREEMENT Recorded Sep 30, 2015
From: ORBITAL ATK, INC.; ORBITAL SCIENCES CORPORATION
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT
Reel/Frame 036732/0170 →
CHANGE OF NAME Recorded May 22, 2015
From: ALLIANT TECHSYSTEMS INC.
To: ORBITAL ATK, INC.
Reel/Frame 035752/0471 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2014
From: NIELSON, DANIEL B.; FIELDING, CURTIS W.
To: ALLIANT TECHSYSTEMS INC.
Reel/Frame 032643/0380 →
Continuity (1)
Related Publication 20150259262A1 · Sep 17, 2015