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 comp
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(NH.sub.4).sub.2 (NO.sub.3).sub.6 or ZrO(NO.sub.3).sub.2, a dried, hydrated nitrate, such as Ca(NO.sub.3).sub.2.4H.sub.2 O or Cu(NO.sub.3).sub.2.2.5 H.sub.2 O, 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.
대표청구항▼
[ We claim:] [1.] A low temperature 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 consisting essentially of:an intimate mixture of an oxidizer composition and a powder
[ We claim:] [1.] A low temperature 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 consisting essentially of:an intimate mixture of an oxidizer composition and a powdered molybdenum metal fuel, wherein the oxidizer composition is selected from the group consisting of an alkali metal nitrate, an alkaline earth metal nitrate, a complex salt nitrate, a dried, hydrated nitrate, silver nitrate, an alkali metal chlorate, an alkali metal perchlorate, an alkaline earth metal chlorate, an alkaline earth metal perchlorate, ammonium perchlorate, sodium nitrite, potassium nitrite, silver nitrite, a complex salt nitrite, a solid organic nitrate, a solid organic nitrite, and mixtures and comelts thereof, wherein the molybdenum metal fuel is present in an amount at least sufficient to provide a substantially stoichiometric mixture of molybdenum metal fuel and oxidizer, and wherein the oxidizer and metal fuel are sufficiently intimately mixed to ensure a sufficient degree of contact in the composition between the oxidizer and the metal fuel, such that the autoignition composition has an autoignition temperature of no more than about 232.degree. C. [21.] A low temperature 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 comprising:a mixture of an oxidizer composition and a powdered metal fuel, wherein the oxidizer composition comprises a mixture or a comelt of at least two components selected from the group consisting of an alkali metal nitrate, an alkaline earth metal nitrate, a complex salt nitrate, a dried, hydrated nitrate, silver nitrate, an alkali metal chlorate, an alkali metal perchlorate, an alkaline earth metal chlorate, an alkaline earth metal perchlorate, ammonium perchlorate, sodium nitrite, potassium nitrite, silver nitrite, a complex salt nitrite, a solid organic nitrate, and a solid organic nitrite.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (5)
Henry ; III Guy H. (Centralia IL) Solverson Matthew S. (Carbondale IL), Gas generating propellant.
Hinshaw Jerald C. (Farr West UT) Blau Reed J. (Richmond UT), Thermite compositions for use as gas generants comprising basic metal carbonates and/or basic metal nitrates.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.