Autoignition composition

C - Chemistry – Metallurgy – 06 – B

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C06B 47/00 (2006.01) C06B 29/00 (2006.01) C06B 31/00 (2006.01) C06B 33/00 (2006.01) C06C 9/00 (2006.01) C06D 5/06 (2006.01)

Patent

CA 2254903

The present invention relates to an autoignition composition for safely initiating combustion of a main pyrotechnic charge in a gas generator or pyrotechnic device exposed to flame or a high temperature environment. The autoignition compositions of the invention include a mixture of an oxidizer composition and a powdered metal, wherein the oxidizer composition includes at least one of an alkali metal or an alkaline earth metal nitrate, a complex salt nitrate, such as Ce(NH4)2(NO3)6 or ZrO(NO3)2, a dried, hydrated nitrate, such as Ca(NO3)2.4H2O or Cu(NO3)2.2.5 H2O, silver nitrate, an alkali or alkaline earth chlorate, an alkali or alkaline earth metal perchlorate, ammonium perchlorate, a nitrite of sodium, potassium or silver, or a solid organic nitrate, nitrite, or amine, such as guanidine nitrate, nitroguanidine and 5-aminotetrazole, respectively. The present invention also relates to a method for initiating a gas generator or pyrotechnic composition in a gas generator or pyrotechnic device exposed to flame or a high temperature environment. In the method of the invention, the gas generator or pyrotechnic composition is placed in thermal contact with an autoignition composition of the invention.

Composition à inflammation spontanée permettant d'amorcer de manière sûre la combustion d'une charge pyrotechnique principale dans un dispositif générateur de gaz ou dans un dispositif pyrotechnique exposé à des flammes ou à un environnement à températures élevées. Les compositions à inflammation spontanée selon l'invention contiennent un mélange d'une composition oxydante et d'un métal en poudre, ladite composition oxydante comprenant au moins un élément choisi parmi un métal alcalin ou un nitrate de métal alcalino-terreux, un nitrate de sel complexe tel que Ce(NH¿4?)¿2?(NO¿3?)¿6? ou ZrO(NO¿3?)¿2?, un nitrate hydraté puis déshydraté, tel que Ca(NO¿3?)¿2?4H¿2?O ou Cu(NO¿3?)¿2?.2.5 H¿2?O, du nitrate d'argent, un chlorate alcalin ou alcalino-terreux, un perchlorate alcalin ou alcalino-terreux, un perchlorate d'ammonium, un nitrite de sodium, de potassium ou d'argent, ou un nitrate de guanidine, la nitroguanidine et le 5-aminotétrazole respectivement. La présente invention se rapporte également à un procédé d'amorçage d'une composition pyrotechnique ou de génération de gaz dans un dispositif générateur de gaz ou un dispositif pyrotechnique exposé à des flammes ou à un environnement à températures élevées. Selon ce procédé, la composition de génération de gaz ou la composition pyrotechnique est mise en contact thermique avec la composition à inflammation spontanée selon l'invention.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Autoignition composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Autoignition composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Autoignition composition will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1645589

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.