Solid combustible propellant composition

Patent metadata

Field	Value
Publication number	US-10934229-B2
Application number	US-201816146154-A
Country	US
Kind code	B2
Filing date	Sep 28, 2018
Priority date	Mar 18, 2016
Publication date	Mar 2, 2021
Grant date	Mar 2, 2021

Abstract

A combustible solid propellant composition is disclosed that includes an oxidizer of the reaction product under vacuum of potassium periodate and isocyanate, a polymer binder, a plasticizer, and a fuel.

First claim

The invention claimed is:

1. A method of making a solid combustible propellant composition, comprising
reacting potassium periodate with isocyanate under a vacuum; and
mixing the reaction product of the potassium periodate and isocyanate with a polymer binder, a plasticizer, and a fuel.

2. The method of claim 1 , further comprising reacting a polyol with a polyisocyanate to form the polymer binder.

3. The method of claim 2 , comprising reacting the polyol with the polyisocyanate in the presence of the potassium periodate.

4. The method of claim 2 , wherein the polyol, polyisocyanate, and potassium periodate are reacted together under vacuum.

5. The method of claim 2 , wherein the plasticizer comprises a nitrate ester plasticizer.

6. The method of claim 1 , wherein the vacuum is at a pressure of less than 20 mm Hg.

7. The method of claim 1 , wherein the vacuum is at a pressure of less than 5 mm Hg.

8. The method of claim 1 , wherein the oxidizer comprises potassium periodate particles with an outer surface that comprises the reaction product of potassium periodate and isocyanate.

9. The method of claim 1 , wherein the fuel comprises a metal powder.

10. The method of claim 1 , wherein the fuel comprises titanium hydride.

11. The method of claim 1 , wherein the fuel comprises a dodecaborate salt.

12. The method of claim 1 , wherein the fuel comprises boron.

13. The method of claim 1 , wherein the fuel comprises titanium hydride, a dodecaborate salt, and aluminum.

14. The method of claim 1 , wherein the solid combustible propellant composition comprises 40-72 wt. % oxidizer, 9-14.5 wt. % polymer binder, and 22-30 wt. % fuel, based on the total weight of the composition.

15. The method of claim 14 , wherein the oxidizer comprises 100 wt. % potassium periodate, based on the total weight of oxidizer.

16. The method of claim 1 , wherein the solid combustible propellant composition comprises 45-58 wt. % potassium periodate, 9.2-14.2 wt. % binder comprising the reaction product of a polyol and a polyisocyanate, 4-16.2 wt. % nitrate ester plasticizer, 0.4-12 wt. % aluminum, 5-20 wt. % titanium hydride, 1-15 wt. % dodecaborate salt, and 0-10 wt. % boron, based on the total weight of the composition.

Assignees

• Goodrich Corp

Inventors

• Reimer Karl G
• Rodriguez Jean C

Classifications

• C06B43/00

  Compositions characterised by explosive or thermic constituents not provided for in groups C06B25/00 - C06B41/00 · CPC title

• C06B45/10 Primary

  the organic component containing a resin · CPC title

• C06B21/0025

  the ingredient being a polymer bonded explosive or thermic component · CPC title