Explosive and thermic compositions or charges – Structure or arrangement of component or product – Solid particles dispersed in solid solution or matrix
Patent
1979-04-17
1987-04-07
Miller, Edward A.
Explosive and thermic compositions or charges
Structure or arrangement of component or product
Solid particles dispersed in solid solution or matrix
149 192, 149 194, 149 199, 149 20, C06B 4510
Patent
active
046558586
ABSTRACT:
Preformed metal/oxidant agglomerates for enhancement of propellant burning ate are prepared from a finely divided metal (aluminum, boron, titanium, etc.), ammonium perchlorate, and a small quantity of the same binder material that goes into the manufacture of the propellant, such as, hydroxyl-terminated polybutadiene crosslinked with a polyisocyanate. Additional ingredients can be incorporated into the agglomerates to bring about further enhancement of burning rate, such as, an ammonium perchlorate decomposition accelerator triphenylbismuthine, a carboranyl burning rate enhancer, iron oxide, etc. Agglomerates are prepared in a fluorinated and/or chlorinated hydrocarbon solvent in which the agglomerate formulation ingredients are insoluble. Any remaining solvent is then evaporated under reduced pressure and the agglomerates are subsequently cured. Optimum mesh size of the agglomerates is 300-500 micrometers. These agglomerates cause a major increase in the burning rate of solid propellants when incorporated therein in percentages of 1-5%.
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Bellamy Werten F. W.
Gapcynski William G.
Miller Edward A.
The United States of America as represented by the Secretary of
Voigt Jack W.
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