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1. (WO2016049724) THERMAL SPARK-CONDUCTING TUBE USING NANOSCALE PARTICLES

Pub. No.:    WO/2016/049724    International Application No.:    PCT/BR2015/050164
Publication Date: Fri Apr 08 01:59:59 CEST 2016 International Filing Date: Fri Oct 02 01:59:59 CEST 2015
IPC: C06C 5/04
C06B 33/12
C06B 45/02
B82Y 30/00
Applicants: PARI SA
FALQUETE, Marco Antonio
Inventors: FALQUETE, Marco Antonio
Title: THERMAL SPARK-CONDUCTING TUBE USING NANOSCALE PARTICLES
Abstract:
The present application discloses a thermal spark-conducting tube (shock tube) provided with a pyrotechnical composition with nanoscale particles containing 35-62% by weight aluminium (with a particle size of 5-18 µm or 20-100 nm), 32-60% by weight iron oxide (with a particle size of 10-100 nm), 0-25% by weight potassium perchlorate and 0.8-1.5% by weight talc. The reduction in the size of the particles of oxidizing agent and reducer in the pyrotechnical composition made it possible to reduce or eliminate substances with low Tammann temperatures (potassium perchlorate), achieving greater safety (friction and impact resistance) and preserving spark propagation even in the presence of cuts or holes in the tubes.