Solid propellant compositions containing unsaturated polyester resin

Claim 1

A SOLID PROPELLANT COMPOSITION CONSISTING ESSENTIALLY OF A CURED, INTIMATE MIXTURE OF FROM ABOUT 50% TO ABOUT 80% BY WEIGHT OF THE TOTAL PROPELLANT COMPOSITION OF AN AMMONIUM SALT SELECTED FROM THE GROUP CONSISTING OF AMMONIUM CHLORATE, PERCHLORAE AND NITRATE AND AN UNSATURATED POLYESTER RESIN CONSISTING OF THE CONDENSATION PRODUCT OF A SATURATED POLYHYDRIC ALCOHOL AND POLYCARBOXYLIC ACID HETEROPOLYMERIZED WITH AN UNSATURATED COMPOUND SELECTED FROM THE GROUP CONSISTING OF LOWER ALKENES, LOWER ALKYNES, PHENYL SUBSTITUTED LOWER ALKENES, LOWER ALKYL DIENES, LOWER ALKENYL ESTERS OF LOWER ALKANOIC ACIDS, LOWER ALKYL ESTERS OF LOWER ALKENOIC ACIDS, LOWER ALKENYL ESTERS OF LOWER ALKENOIC ACIDS, ALLYL DIGLYCOL CRBONATE, DIALLYL DIGLOYCOLLATE AND MIXTURES THEREOF; AND FROM ABOUT 0.5% TO ABOUT 5% BY WEIGHT OF A BURNING RATE ACCELERATION CATALYST COMPRISING A MIXTURE OF ABOUT EQUAL AMOUNTS POTASSIUM NITRITE AND A SODIUM SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM SULFATE AND SODIUM THIOSULFATE.