发明授权
- 专利标题: Pyrotechnic delay compositions
- 专利标题(中): 烟火延迟成分
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申请号: US320772申请日: 1989-03-08
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公开(公告)号: US4963204A公开(公告)日: 1990-10-16
- 发明人: Gunther Faber , Hans Florin , Peter-Josef Grommes , Peter Roh
- 申请人: Gunther Faber , Hans Florin , Peter-Josef Grommes , Peter Roh
- 申请人地址: DEX Troisdorf
- 专利权人: Dynamit Nobel Aktiengesellschaft
- 当前专利权人: Dynamit Nobel Aktiengesellschaft
- 当前专利权人地址: DEX Troisdorf
- 优先权: DEX3808366 19880312
- 主分类号: C06B33/12
- IPC分类号: C06B33/12 ; C06C5/06
摘要:
Pyrotechnic delay compositions with delays in the seconds range are based on a pyrotechnic delay mixture of powdered metallic tungsten, barium chromate an potassium perchlorate, and additionally contain either barium hexafluorosilicate or calcium fluoride pyrogenic silica. The additives cause these compositions to burn completely even under severe environmental conditions, such as very fast rotation, vibration, impact, shock, and, at the same time, extremely low below-freezing temperatures. The effect of the barium hexafluorosilicate is still further improved if the delay compositions additionally contain pyrogenic silica.