METHOD OF PRODUCING BALL POWDER Russian patent published in 2017 - IPC C06B21/00 C06B25/18 

FIELD: weapons and ammunition.

SUBSTANCE: polyvinyl nitrate (PVN) is first added to the water to obtain a ball powder and ethyl acetate is dosed during stirring. The mass is mixed at increasing temperature, then nitrates of cellulose (NC) of fibrous form are injected, with the ratio of PVN and NC (10-15):(90-85), and the powder laquer is prepared. Then the powder lacquer is dispersed, an emulsifier and sodium sulfate are introduced to dewater the lacquer particles. After that, the ethyl acetate is removed, the powder elements are washed, sorted and dried.

EFFECT: method makes it possible to obtain ball powder granules by water dispersion technology on the basis of the bipolymer binder PVN-NC and thereby increase the processability of production of ball powders, provide the required quality of granules for ethyl acetate content and shorten the lacquer formation time.

1 tbl, 5 ex