Extrudable gun propellant composition
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United States of America Patent
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-
May 8, 2001
Grant Date -
N/A
app pub date -
Jun 28, 1991
filing date -
Jul 2, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention provides an extrudable gun propellant having a specific energy content of at least 1100 kJ/kg and typically over 1200 kJ/kg, but with reduced vulnerability to shaped charge attack compared to known colloidal propellants. This is achieved by using an energetic binder prepolymer and an energetic plasticiser with a reduced content of explosive filler. The composition comprises 65-85% by weight particulate explosive filler, 10-30% by weight of a mixture of a funtionally-terminated poly(nitratoalkyl-substituted)alkyl ether prepolymer and a cross-linking agent, and 1-12% by weight of energetic plasticiser.
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