Process for Coating Crystalline Explosives with Polyethylene Wax.
Patent, Filed 20 May 81, patented 2 Nov 82,
DEPARTMENT OF THE NAVY WASHINGTON DC
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According, an object of this invention is to provide a new method of coating high crystalline explosives with polymeric waxes. Another object of this invention is to provide a method of coating crystalline high explosives with polymeric waxes without the use of heavy metals. Yet another object of this invention is to provide process for coating crystalline high explosives with polymeric waxes in which the effluent waters produced may be discharged into the environment without special treatment. These and other objects of this invention are accomplished by providing. A method of coating explosives with polyethylene wax comprising the steps of forming a slurry of finely divided crystalline explosive in water adding polyethylene wax-water emulsion to the slurry wherein the emission comprises a low molecular weight, emulsifible polyethylene wax having a softening point below 100 C., water, wherein the weight ratio of water to 45 polyethylene was is from 991 to 11, stearic acid, wherein the weight ratio of stearic acid to polyethylene wax is from 15 to 16, and potassium hydroxide in sufficient amount to adjust the pH of the emulsion to above 9 heating the slurry-emulsion mixture to from about 92 C with stirring adding acetic acid to the solution to adjust the pH to about 6 cooling the mixture and isolating the product polyethylene wax coated explosive crystals.
- Ammunition and Explosives