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US 4,057,441 AGranted
Solid propellant with burning rate catalyst
AssigneeThiokol Corporation
InventorRichard A. Biddle
Life of this patent
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Abstract
Finely divided cupric sulfide increases the burning rate, and reduces the pressure exponent of solid propellant compositions.
Claims5
A solid propellant composition comprising a hydroxy terminated polybutadiene based binder component, an oxygen containing inorganic oxidizer component, and finely divided cupric sulfide.
A process for preparing a solid propellant composition having increased burning rate and a reduced pressure exponent, said propellant composition comprising a hydroxy terminated polybutadiene based binder component, and an oxygen containing inorganic oxidizer component, which comprises
- a. adding to and mixing with said propellant composition, while said propellant composition is in an uncured condition, from 0.1% to 1.0% of final propellant weight of finely divided cupric sulfide;
- and
- b. curing said uncured cupric sulfide containing propellant composition of step a.
Dependencies are inferred from the claim text.