Heat resistant butadiene-acrylonitrile propellants

Claim 1

A METHOD FOR MANUFACTURING GRANULATED PROPELLANTS CAPABLE OF WITHSTANDING ELEVATED TEMPERATURES FOR EXTENDED PERIODS COMPRISING THE STEPS OF MIXING ABOUT 12.3 TO 29.6% OF A COPOLYMER BINDER COMPRISING ABOUT 60% BUTADIENE AND 40% ACRYLONTRILE WITH SOLVENT IN A MIXER, MIXNG THEREINTO ABOUT 0.2 TO 0.4% OF A CATALYST CMPRISNG BENZOLYL PERIOXIDE AND TRICRESYL PHOSPHATE, ADDING THEREINTO ABOUT 70.0 TO 87.5% OF HMX IN A PLURALITY OF INCREMENTS IN THE PRESENCE OF A VOLATILE SOLVENT THEREFOR TO FORM A MIXTURE, SOLVENT EXTRUDING SAID MIXTURE, CUTTING THE EXTRUDED PROPELLANT MIXTURE INTO GRANULES OF DESIRED GEOMETRY, DRYING THE PROPELLANT GRANULES AT ELEVATED TEMPERATURE, AND CURING THE PROPELLANT GRANULES AT A TEMPERATURE ABOVE THE BOILING POINT OF THE VOLATILE SOLVENT.

Claim 2

A METHOD FOR MANUFACTURING GRANULATED PROPELLANTS CAPABLE OF WITHSTANDING ELEVATED TEMPERATURES FOR EXTENDED PERIODS COMPRISING THE STEPS OF MIXING ABOUT 12.3 TO 29.6% OF A COPOLYMER BINDER COMPRISING ABOUT 60% BUTADIENE AND 40% ACRYLONTRILE WITH SOLVENT IN A MIXER, MIXNG THEREINTO ABOUT 0.2 TO 0.4% OF A CATALYST CMPRISNG BENZOLYL PERIOXIDE AND TRICRESYL PHOSPHATE, ADDING THEREINTO ABOUT 70.0 TO 87.5% OF HMX IN A PLURALITY OF INCREMENTS IN THE PRESENCE OF A VOLATILE SOLVENT THEREFOR TO FORM A MIXTURE, SOLVENT EXTRUDING SAID MIXTURE, CUTTING THE EXTRUDED PROPELLANT MIXTURE INTO GRANULES OF DESIRED GEOMETRY, DRYING THE PROPELLANT GRANULES AT ELEVATED TEMPERATURE, AND CURING THE PROPELLANT GRANULES AT A TEMPERATURE ABOVE THE BOILING POINT OF THE VOLATILE SOLVENT.