Ammunition with protective surface layer and method of making same
AssigneeRheinmetall GmbH
InventorsManfred Luebben, Wolfram Witt
Life of this patent
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Abstract
A protective surface coating for ammunition having no cartridge casing and ammunition having a combustible cartridge casing. A body of highly porous nitrocellulose is permeated from the outside with a polymer carried by a solvent to form a binder for the body. A layer of metal platelets containing air-pockets is bound to the body with a binding polymer. The metal platelets are covered with an outer coating of a rapidly curing resin. The protective coating is used to prevent the penetration of moisture into the porous cartridge casing or into the powder mass itself and to provide improved stability to heat and flames.
Claims14
Porous nitrocellulose combustible ammunition cartridge permeated with a first polymer, said cartridge having deposited thereon a protective coating including successively a first layer of metal particles bonded to said cartridge with a second polymer containing air pockets, and a second layer comprising a cured resin.
Dependencies are inferred from the claim text.