Gas generant compositions
View Patent ↗A novel compound, used for example, as a gas generating fuel, is defined as a compound having the structural formula of R 3 —R 1 —R 2 , wherein R1 is a benzene ring with nitro substitution, R2 is a tetrazolyl group with a C—C bond to the benzene ring, and R3 is a tetrazolyl group with a C—C bond to the benzene ring. A method of making the compound is also provided. A gas generating composition containing the novel compound as a fuel, and an oxidizer is also provided. The novel compound is contained within a gas generant composition, within a gas generator. The gas generator may be contained within a gas generating system such as an airbag inflator or seat belt assembly, or more broadly within a vehicle occupant protection system.
1. A compound defined as consisting of the structural formula of R 3 —R 1 —R 2 , wherein R1 is a benzene ring with nitro substitution, R2 is a tetrazolyl group with a C—C bond to the benzene ring, and R3 is a tetrazolyl group with a C—C bond to the benzene ring.
2. The compound of claim 1 wherein said compound is 2,3-Bis(tetrazolo)Nitro benzene.
3. The compound of claim 1 wherein said compound is 3,4-Bis(tetrazolo)Nitro benzene.
4. A composition comprising:
a first fuel defined as having the structural formula of R 3 —R 1 —R 2 , wherein R1 is a benzene ring with nitro substitution, R2 is a tetrazolyl group with a C-C bond to the benzene ring, and R3 is a tetrazolyl group with a C—C bond to the benzene ring, said first fuel provided at about 5-95 weight percent;
an oxidizer selected from basic metal nitrates, and, metal and nonmetal nitrates, chlorates, perchlorates, nitrites, oxides, and peroxides, said oxidizer provided at about 5-95 weight percent.
5. The composition of claim 4 further comprising:
a second fuel selected from carboxylic acids; amino acids; tetrazoles; triazoles; guanidines; azoamides; metal and nonmetal salts thereof; and mixtures thereof said second fuel provided at about 0.1-30 percent.
6. A gas generating system containing the compound of claim 1 .
7. A vehicle occupant protection system containing the compound 1.
8. A gas generating system containing the composition of claim 4 .
9. A vehicle occupant protection system containing the composition of claim 4 .
10. A composition containing the compound of claim 1 and an oxidizer.
11. A method of forming a compound comprising the steps of:
providing a sufficient amount of water within a reaction vessel;
providing a predetermined molar amount of a dicyano Nitrobenzene compound in the reaction vessel and mixing the contents;
providing a molar amount of zinc bromide, equivalent to that of dicyano Nitrobenzene, within the reaction vessel and continuing to mix;
providing a molar amount of sodium azide, about two to three hines that of dicyano Nitrobenzene, to the reaction vessel and continuing to mix;
mixing the contents of the vessel to create a solution, and refluxing; and
acidifying the solution to form a compound, said compound defined as having the structural formula of R 3 —R 1 —R 2 , wherein R1 is a benzene ring with nitro substitution, R2 is a tetrazolyl group with a C—C bond to the benzene ring, and R3 is a tetrazolyl group with a C—C bond to the benzene ring.
12. The compound formed by the method of claim 11 .
13. A gas generant composition containing an oxidizer and the compound formed by the method of claim 11 .
14. A gas generating system containing the compound formed by the method of claim 11 .