Process for preparing rocket fuel containing polymerized olefins and boron

Claim 1

PROCESS FOR PREPARING A HIGH ENERGY FUEL COMPOSITION WHICH COMPRISES FORMING A DISPERSION, IN AN INERT LIQUID REACTION MEDIUM, OF FINELY DIVIDED BORON AND A SOLID METAL HALIDE CATALYST IN WHICH THE METAL IS SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM, CHROMIUM, VANADIUM, MOLYBDENUM AND TITANIUM TOGETHER WITH AN ALUMINUM ALKYL ACTIVATOR, THE MOLAR PROPORTION OF THE ACTIVATOR TO THE METAL HALIDE BEING IN THE APPROXIMATE RANGE OF 0.6:1 TO 12:1, CONTACTING THE DISPERSION UNDER POLYMERIZING CONDITIONS WITH A NORMALLY GASEOUS OLEFIN SELECTED FROM THE GROUP CONSISTING OF ETHYLENE, PROPYLENE AND MIXTURES THEREOF TO FORM SOLID POLYMERS OF MOLECULAR WEIGHT IN THE RANGE OF 5000-300,000, THE AMOUNT OF SAID OLEFIN SO CONTACTED WITH THE DISPERSION BEING SUFFICIENT TO PRODUCE A REACTION MIXTURE IN WHICH THE WEIGHT PROPORTION OF BORON TO POLYMER IS FROM 10:90 TO 80:20, AND RECOVERING FROM THE REACTION MEDIUM SOLID POLYMERS HAVING BORON DISPERSED THEREIN.