Dispersion of fine ammonium perchlorate,aluminum or ferric oxide particles in propellants
Abstract
Abstract 1. A METHOD FOR DISPERSING FINE ANMONIUM PERCHLORATE, ALUMINUM OR FERRIC OXIDE PARTICLES OF LESS THAN 50U WEIGHT MEDIAN DIAMETER COMPRISING THE STEPS OF MIXING A SLURRY OF SAID FINE AMMONIUM PERCHLORATE, ALUMINUM OR FERRIC OXIDE PARTICLES, AN ORGANIC LIQUID AND A SURFACTANT, SAID SURFACTANT BEING OF ABOUT 0.1 TO ABOUT 0.5 PERCENT BY WEIGHT ON A TOTAL SOLIDS BASIS, WHICH LOWERS THE INTERFACIAL SURFACE TENSION BETWEEN SAID FINE ANMONIUM PERCHLORATE, ALUMINUM OR FERRIC OXIDE PARTICLES AND SAID ORGANIC LIQUID, AND ALLOWING SAID SLURRY TO STAND UNTIL SAID SURFACTANT REACTS WITH SAID AMMONIUM PERCHLORATE, ALUMINUM OR FERRIC OXIDE PARTICLEES TO EFFECTIVELY DISPERSE SAID AMMONIUM PERCHLORATE, ALUMINUM OR FERRIC OXIDE PARTICLES IN SAID SLURRY SAID SURFACTANT BEING SELECTED FROM THE GROUP CONSISTING OF SODIUM SULFONATE OF MINERAL OIL, LECITHIN, AND A MIXTURE CONSISTING ESSENTIALLY OF APPROXIMATELY EQUAL PARTS BY WEIGHT OF PHOSPHATIDYL CHOLINES, ETHANOLAMINES AND INOSITOLS, AND SAID ORGANIC LIQUID BEING SELECTED FROM THE GROUP CONSISTING OF NORMAL-HEPTANE, NORMAL-HEXANE, 1,1,2-TRICHLORO-1,2,2-TRIFLUOROETHANE, 1,1,2,2-TETRACHLORO-1,2,-DIFLUOROETHANE, ETHYL ACETATE, TETRAHYDROFURAN, BENZENE, TOLUENE, HEXANE, ACETONE, AND ETHYL ALCOHOL.
Inventors
- 👤 B Alley
- 👤 H Carter
Bibliographic Details
Claims Analysis
Total Claims: 2References Cited (Backward Citations)
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