Process for the manufacture of high performance gun propellants

Details Process for the manufacture of high performance gun propellants Process for the manufacture of high performance gun propellants

1996-07-26

1998-06-02

Nelson, Peter A.

Plastic and nonmetallic article shaping or treating: processes

Explosive or propellant article shaping or treating

Extrusion to form sheet or rod

C06B 2100

Patent

active

057594589

ABSTRACT:
A process for manufacturing a high performance gun propellant containing an energetic thermoplastic elastomeric binder and a high-energy oxidizer is disclosed. The process includes preparing or obtaining a molding powder of the high-energy oxidizer particles coated with the energetic thermo-plastic elastomeric binder and extruding the molding powder into the desired gun propellant configuration. The high-energy oxidizer has a concentration in the range from 70% to 85%, by weight, and the energetic thermoplastic elastomeric binder has a concentration in the range from 15% to 30%, by weight. The molding powder has a particle size in the range from 200 .mu. to 2000 .mu.. Typical thermoplastic elastomeric binders include oxetane, oxirane, and nitramine backbone polymers, copolymers, and mixtures thereof. Typical high-energy oxidizers include nitramine oxidizers.

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L.E. Harris, S. Moy, T. Manning, R. B. Wardle, A. Haaland, J. A. Hartwell, T. Cordeschi, and J. G. Buzzett, "Plasma Ignition of Advanced Solid Propellants", JANNAF Propulsion Meeting (Dec. 8, 1995).

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