PROCESS OF PRODUCTION OF POLYMER-COATED LEAD SHOTS Russian patent published in 2003 - IPC

FIELD: manufacture of projectiles, specifically lead shots, coated with layer of chemically inert polymer. SUBSTANCE: invention can find use in production of ammunition of hunting and sporting guns. Polyolefins or their mixtures in the form of powder or flakes are utilized in the capacity of polymer. Shots contact polymer under mode of vibrocomminution for which polymer powder with addition of 13-40% of sulfur from mass of polymer is poured into vibratory-ball mill, is mixed with addition of dry lead shots with mass relationship shots:polymer equal to (10-25):1, then graphite or carbon black are added and mixture is agitated again. EFFECT: high strength of adhesion of polymer shell with surface of shots, preservation of traditional ballistic characteristics. 2 cl, 1 tbl