Explosive and thermic compositions or charges – Containing free phosphorus or binary compound of phosphorus – With free metal – or alloy or metalloid
Reexamination Certificate
2006-03-02
2010-12-28
Lorengo, Jerry (Department: 1793)
Explosive and thermic compositions or charges
Containing free phosphorus or binary compound of phosphorus
With free metal, or alloy or metalloid
C149S002000, C149S003000, C149S029000, C149S037000, C149S087000, C149S109400
Reexamination Certificate
active
07857921
ABSTRACT:
A primer composition that includes stabilized, encapsulated red phosphorus, at least one oxidizer, at least one secondary explosive composition, at least one light metal, and at least one acid resistant binder. The stabilized, encapsulated red phosphorus may include particles of red phosphorus, a metal oxide coating, and a polymer layer. The metal oxide coating may be a coating of aluminum hydroxide, bismuth hydroxide, cadmium hydroxide, cerium hydroxide, chromium hydroxide, germanium hydroxide, magnesium hydroxide, manganese hydroxide, niobium hydroxide, silicon hydroxide, tin hydroxide, titanium hydroxide, zinc hydroxide, zirconium hydroxide, or mixtures thereof. The polymer layer may be a layer of epoxy resin, melamine resin, phenol formaldehyde resin, polyurethane resin, or mixtures thereof. A percussion cap primer that includes the primer composition, a tertiary explosive composition, and a cup is also disclosed, as are ordnance devices including the primer composition.
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Botcher Tod R.
Busky Randall T.
Erickson Jack
Sandstrom Joel
Alliant Techsystems Inc.
Lorengo Jerry
McDonough James E
Traskbritt
LandOfFree
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