Electrically primable igniter charges for caseless ammunition and propellant cartridges

US4956029A · kind A · utility

Assignee

• Dynamit Nobel GmbH · DE

Inventors

• Rainer Hagel · Erlangen, DE
• Klaus Redecker · Nuremberg, DE
• Horst Penner · Fürth, DE

Key dates

• Filing date: Mar 11, 1988
• Grant date: Sep 11, 1990
• Expiry date: Mar 11, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C06C9/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

An electrically primable igniter charge yield has a composition that yields a reduced proportion of toxic vapors after the deflagration. The composition of the charges contains, as the oxidizing agent, zinc peroxide and, as a component providing additional energy, initiating explosives of the kind which do not trigger a detonation in direct contact with press-molded elements of nitrocellulose propellant charge powders. Among these initiating exposives are the potassium salts of trinitrophenol or trinitroresorcinol. The components of the igniter charges are mixed with fibers of an electrically conductive material. Suitable conductive materials are carbon or metals, such as iron or copper, or metal alloys, such as brass, for example. The igniter charges furthermore contain a binder which is preferably a secondary explosive, such as, for example, nitrocellulose.