| 摘要 |
<p>PCT No. PCT/GB90/00360 Sec. 371 Date Nov. 6, 1991 Sec. 102(e) Date Nov. 6, 1991 PCT Filed Mar. 9, 1990 PCT Pub. No. WO90/10724 PCT Pub. Date Sep. 20, 1990.A pyrotechnic material consists of an oxidizable metal vapor-deposited onto a substrate film of an oxidizing polymeric material the metal and polymeric substrate being conjointly capable of exothermic reaction on ignition. The substrate may be provided in flexible film tape form and coated on both sides with metal to provide a flash transfer medium with flash velocities typically within the range 10-100 ms-1. The substrate is preferably PTFE and the metal magnesium.</p> |
