USA As Represented by Secretary of the Navy

Nancy C Johnson

Carl Gotzmer

Robert C Gill

Harold T Fillman

John F Leahy

Mark Graff

A method of melt casting plastic bonded explosives by:

Melt cast thermoplastic elastomeric plastic bonded explosive

An energetic composition useful in transferring detonation through thin cnels in a logic pattern comprises a binder comprising vinyl-terminated polybutadiene-acrylonitrile copolymer crosslinked with a monofunctional unsaturated ester monomer in an amount from about 50 to about 90 percent of the binder weight and a plasticizer selected from the group consisting of dioctyl phthalate, maleate and adipate, isodecyl pelargonate, dibutyl phthalate and maleate in an amount from about 10 to 50 percent of the binder weight, and pentaerythritol tetranitrate in amount from about 76 to 84 percent of the total composition weight. The composition is cured with ionizing radiation in a dose from about 0.6.times.10.sup.6 to 1.2 to 10.sup.6 rads.

Detonation-transfer energetic composition

Diferrocenyl piperazines represented by the formula: ##STR1## wherein Fc represents a ferrocene radial R represents alkylene radical hng from 1 to 7 carbon atoms, and x and y are 0 or 1 are disclosed as burning rate modifiers for ammonium perchlorate composite propellants. Coating ammonium perchlorate crystals with the differocenyl piperazines significantly decreases migration of the piperazines in the propellant.

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Waldorf, MD, United States of America

Nancy C Johnson