Process for the manufacture of oxalyl dihydrazide and the use of same as a coolant in gas generating compositions
First Claim
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1. A process for the preparation of oxalyl dihydrazide which comprises reacting diethyloxalate and hydrazine at a temperature between about 30°
- C and about 70°
C in a medium consisting substantially of distilled water.
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Abstract
A curable homogeneous gas-generating composition composed essentially of oxalyl dihydrazide coolant combined with: (a) a perchlorate oxidizer selected from the group consisting of ammonium perchlorate, the alkali metal perchlorates, and the alkali earth metal perchlorates, (b) a combustible fuel binder, and (c) propellant adjuvants.
A process for the preparation of oxalyl dihydrazide is also disclosed.
The gas-generating compositions of the present invention have greatly improved combustion characteristics and exhibit reduced flame temperatures.
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5 Claims
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1. A process for the preparation of oxalyl dihydrazide which comprises reacting diethyloxalate and hydrazine at a temperature between about 30°
- C and about 70°
C in a medium consisting substantially of distilled water. - View Dependent Claims (2, 3)
- C and about 70°
- 4. In a method for making oxalyl dihydrazide wherein a dialkyl oxalate is reacted with hydrazine in a solvent medium, the improvement comprising conducting said reaction in a substantially distilled water solvent medium.
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