Solid propellant compositions

Claim 1

IN A ROCKET PROPELLANT CONSISTING ESSENTIALLY OF A RUBBERY BINDER PREPARED BY POLYMERIZING BUTADIENE AND A COPOLYMERIZABLE MONOMER SELECTED FROM THE GROUP CONSISTING OF STYRENE, ALPHA-METHYLSTYRENE, ACRYLONITRILE, METHACRYLONITRILE, METHYL, ACRYLATE METHYL METHACRYLATE ETHYL ACRYLATE, BUTYL ACRYLATE, 2-VINYLPYRIDINE; 2,5-DIVINYLPYRIDINE; 2-METHYL-5-VINYLPYRIDINE; 2,3,4-TRIMETHYL-5-VINYLPYRIDINE; 3,4,5,6-TETRAMETHYL-2-VINYLPYRIDINE; 3-ETHYL5-VINYLPYRIDINE; 2,6-DIETHYL-4-VINYLPYRIDINE; 2-ISOPROPYL 4-NONYL-5-VINYLPYRIDINE; 2-METHYL-5-UNDECYL-3-BINYLPYRIDINE; 3-DODECYL-4,5-DIVINYLPYRIDINE; 2,4-DIMETHYL-5-6-DIPENTYL-3-VINYLPYRIDINE; 2-DECYL-5(A-METHYLVINYL) PYRIDINE 3,5-DI (A-METHYLVINYL)PYRIDINE; A SOLID INORGANIC OXIDIZING SALT; A COMBUSTION RATE CATALYST SELECTED FROM THE GROUP CONSISTING OF METAL FERROCYANIDES AND METALL FERRICYANDIDES; AND A VULCANIZING AGENT; SAID SOLID INORGANIC OXIDIZING SALT COMPRISING A MAJOR AMOUNT OF SAID PROPELLANT; THE IMPROVEMENT COMPRISING ADDING 0.5 TO 40 PARTS BY WEIGHT PER 100 PARTS OF SAID BINDER OF AN EPOXY COMPOUND SELECTED FROM THE GROUP CONSISTING OF ETHYLENE OXIDE, PROPYLENE OXIDE, BUTYLENE OXIDE, 1,2:EPOXYPENTANE, 1,2-EPOXY-3-METHYLBUTANE, STYRENE OXIDE, EPICHLOROHYDRIN, EPIBROMOHYDRIN, BUTADIENE MONOXIDE, AND EPOXY RESINS HAVING A MOLECULAR WEIGHT RANGE OF 250 TO 10,000.