Solid propellant

Claim 1

A CASTABLE SOLID PROPELLANT OF THE COMPOSITE TYPE, CONSISTING ESSENTIALLY OF 65 TO 95 WEIGHT PERCENT OF A SOLID INORGANIC OXIDZER AND 5 TO 35 WEIGHT PERCENT OF A POLYURETHANE FUEL-BINDER FORMED BY THE REACTION OF A POLYISOCYANATE WITH A POLYOL COPOLYMER OF MIXED CYCLIC ETHERS AND A POLYHYDROXY CROSSLINKING COMPOUND, SAID POLYISOCYANATE BEING SELECTED FROM THE GROUP CONSISTING OF BENZENE - 1,3-DIISOCYANATE, BENEZENE-1-4-DIISOCYANATE, HEXAMETHYLENE DIISOCYANATE, TOLUENE-2,4-DIISOCYANATE, TOLUENE2,5-DIISOCYANATE, DIPHENYLMETHANE-4,4''-DIISOCYANATE, DIPHENYL - 4,4''-DIISOCYANATE, DIPHENYL-3,3''-DIMETHYL-4-4''-DIISOCYANATE, 2-CHLOROPROPANE-1,3-DIISOCYANATE, DIPHENYL3,3''-DIMETHOXY-4,4'' -DIISOCYANTE, NAPTHTHALENE-1,5-DIISOCYANATE, PENTAMETHYLENE DIISOCYANATE, TETRAMETHYLENEDIISOCYANATE, OCTAMETHYLENE DIISOCYANATE, TETRAMETHYLENEDIISOCYCYANATE, PROPYLENE-1,2-DIISOCYANATE, BENZENE-1,2,4-TRIISOCYANATE, TOLUENE-2,3-DIISOCYANATE, DIPHENYL-2,2''-DIISOCYANATE, NAPTHALENE-2,7-DIISOCYANATE, NAPHTHALENE-1,8-DIISOCYANATE, TOLUENE-2,4,6-TRIISOCYANATE, BENZENE-1,3,5-TRIISOCYANATE, BENZENE-1,2,3-TRIISOCYANATE, AND TOLUENE-2,3,4-TRIISOCYANATE, SAID CYCLIC ETHER BEING SELECTED FROM THE GROUP CONSISTING OF EPOXYETHANE, 1-PHENYL-EPOXYETHANE, 1-CYCLOHEXYL-2-(4-CHLOROCYCLOHEXYL)-EPOXYETHANE, 1,2-DIPHENYL - EPOXYETHANE, 1,2 - DIPHENYL-1-CHLOROEPOXYETHANE, 1-CYCLOHEXYL-2,3-EPOXYPROPANE, 1,2-EPOXYPROPANE, 1,3EPOZYPROPANE, 1,2-EPOXY-2-METHYLPROPANE, 3-CHLORO-1,2EPOXYPROPANE, 3-BROMO-1,2-EPOXYPROPANE, 2-METHYL-1,2EPOXYPROPANE, 3-PHENYL-1,2-EPOXYPROPANE, 3-CYCLOHEXYL1,3-EPOXCYPROPANE, 3-BROMO-1,3-EPOXYPROPANE, 1-PHENYL3-(3-ETHYLCYCLOHEXYL) -1,2-EPOXYPROPANE, 1-(3-CHLOROCYCLOHEXYL)-3-CYCLOPENTYL-1,2-EPOXYPROPANE, 1,2-EPOXYBUTANE, 2,3-EPOXYBUTANE, 1,3-EPOXYBUTANE, 1, 1,4-EPOXYBUTANE, 3,4DICHLORO-1,2-EPOXYBUTANE, 3-METHYL-1,2-EPOXYBUTANE, 2,3DIMETHYL-2,3-EPOXYBUTANE, 3-(3-METHYLPHENYL)-1,2-EPOXYBUTANE, 1- PHENYL - 4 - (3-CHLOROPHENYL) -1,2-EPOXYBUTANE, 1-(3-ETHYLCYCLOHEXYL)-4-CYCLOPENTYL -1,2-EPOXYPENTANE, 1,2EPOXYPENTANE, 1,3-EPOXYPENTANE, 1,4-EPOXYPENTANE, 2,3EPOXYHEXANE, 1,2-EPOXYHJEPTANE, 3,4 EPOXYDECANE, 1,2EPOXYDODECANE, 5,6-EPOXYHEPTANE, 1,2-EPOXYPENTADECANE, 1,3-EPOXYOCTADECANE, 1,3-EPOXYEICOSANE, 1,2-EPOXYPENTACOSANE, 1,3-EPOXYTRIACONTANE, 1,2-EPOXYDOTRIACONTANE, 1,3EPOXY-HEXATRIACONTANE, 1,2-EPOXY-3-BUTENE, 1,2-EPOXY-3,5HEXADIENE, 5-METHYL-6-PHENYL-3,4-EPOXY-1,5-HEXADIENE, 1,2-EPOXY-3-BUTYNE, 2,3-EPOXY-4-PENTYNE, AND 3,4-EPOXY1-HEPTENE-6-YNE, AND SAID POLYHYDROXY CROSSLINKING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF 1,2,3-PROPANETRIOL, 1,2,6-HEXANETRIOLA, TRIMETHYLOPROPANE, ERYTHRITOL PENTAERYTHRITOL, RIBITOL, XYLITOL,SORBITOL, MANNITOL, TRIMETHYLOPHENOL, TRIISOPROPANOLAMINE TRIMETHYLOLAMINE, TRIETHANOLAMINE, TRIISOPROPANOLAMINE, TRI-N-PROPANOLAMINE, N,N,N'',N''-TETRAKIS(2-HYDROXYPROPYL) ETHYLENE DIAMINE, N(2-HYDROXYETHY)-N,N''N''-TRIS(2-HYDROXYPROPLY) ETHYLENE DIAMINE, CASTOR OIL, GLYCERYL MONO-, DI, AND TRIRICINOLEATE, GLYCERYL MONO-DI-,AND TRI(12-HYDROXYSTEARPENTAERYTHRITOL MONO-, DI-, TRI-, AND TETRA(12-HYDROXYSTEARATE), 2,3-DIHYDROXYPROPYL-12-HYDROXYSTEARATE, 2,3-DIHYDROXY RICINOLEATE, ETHYLENE OXIDE ADDUCTS OF GLYCEROL, 1,2,6-HEXANETRIOL, AND PENTAERYTHRITOL, PROPYLENE OXIDE ADDUCTS OF GLYCEL, PROPYLENE OXIDE ADDUCTS OF 1,2,6HEXANETRIOL, CONDENSATION PRODUCTS OF 1,2,6-HEXANETRIOL AND GLYCEROL AND THE OCTAKIS(2-HYDROXYPROPYL) DERIVATIVE OF SUCROSE.