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    • 1. 发明授权
    • Perforated propellant and method of manufacturing same
    • 穿孔推进剂及其制造方法
    • US6444062B2
    • 2002-09-03
    • US88240201
    • 2001-06-16
    • GEN DYNAMICS ORDNANCE & TACTIC
    • O'MEARA WILLIAM LHOWARD JONATHON MGONZALEZ ANTONIO FWILLIAMSON JOHN J
    • C06B21/00C06B25/18D03D23/00
    • C06B25/18C06B21/0066C06B21/0075
    • The present invention is directed to a propellant composition made from a lacquer, the lacquer comprising: (a) from about 15 to about 70 wt % of an organic solvent; (b) from about 0.1 to about 2.5 wt % of a stabilizer; (c) optionally, from about 0% to about 40 wt % of an energetic plasticizer; (d) optionally, from about 0 to about 10 wt % of a nonenergetic plasticizer; (e) optionally, from about 0 to about 10 wt % water; (f) optionally, from about 0 to about 15 wt % of additional additives; and balance being nitrocellulose; all weight percents based on the total weight of the composition, and wherein the lacquer has a viscosity of less than 10 million centipoise when processed. The present invention is also directed to an efficient and safe method of making perforated propellant grains using the above lacquer composition, as well as propellant grains having ellipsoidal cross sections or outwardly extending ridges.
    • 本发明涉及由漆制成的推进剂组合物,所述漆包含:(a)约15至约70重量%的有机溶剂; (b)约0.1至约2.5重量%的稳定剂; (c)任选地,约0%至约40%重量的能量增塑剂; (d)任选的约0至约10重量%的非易失性增塑剂; (e)任选地,约0至约10重量%的水; (f)任选地,约0至约15重量%的其它添加剂; 余量为硝酸纤维素; 基于组合物的总重量的所有重量百分数,并且其中所述漆在加工时具有小于1000万厘泊的粘度。 本发明还涉及使用上述漆组合物制造穿孔推进剂颗粒的有效和安全的方法,以及具有椭圆形横截面或向外延伸的脊的推进剂颗粒。