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 urea group, R2 is a tetrazolyl group with a C—N bond to the urea group, and R3 may be defined as a non-tetrazolyl, triazolyl, heterocyclic, heterocyclic amine, aliphatic, aliphatic amine, aryl, alkyl, hydrogen, or nitrogen group linked to the free nitrogen on the urea group. A method of making the compound is also provided. A gas generating composition 12 containing the novel compound as a fuel, and an oxidizer is also provided. The novel compound may be contained within a gas generant composition 12, within a gas generator 10. The gas generator 10 may be contained within a gas generating system such as an airbag inflator 10 or seat belt assembly 150, or more broadly within a vehicle occupant protection system 180.
1. A compound defined as having the structural formula of R 3 —R 1 —R 2 , wherein R1 is a urea group, R2 is a tetrazolyl group with a C—N bond to the urea group, and R3 is an N-tetrazolyl, triazolyl, heterocyclic-triazine, heterocyclic amine, aromatic amine, alkenyl, alkynyl, or nitramine group linked to the free nitrogen on the urea group.
2. The compound of claim 1 wherein said compound is tetrazolo, triazolo urea.
3. A composition comprising:
a first fuel defined as a compound having the structural formula of R 3 —R 1 —R 2 , wherein R1 is a urea group, R2 is a tetrazolyl group with a C—N bond to the urea group, and R3 is an, N-tetrazolyl, triazolyl, heterocyclic-triazines, heterocyclic amine, aromatic amine alkenyl, alkynyl, or nitramine group linked to the free nitrogen on the urea group, said fuel provided at about 5-50 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 50-95 weight percent.
4. The composition of claim 3 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 0.1-45 percent.
5. An automotive gas generating system containing the compound of claim 1 .
6. A vehicle occupant protection system containing the compound of claim 1 .
7. An automotive gas generating system containing the composition of claim 3 .
8. A vehicle occupant protection system containing the composition of claim 3 .
9. A composition containing the compound of claim 1 and an oxidizer.
10. A compound defined as having the structural formula of R 3 —R 1 —R 2 , as a compound having the structural formula of R 3 —R 1 —R 2 , wherein R1 is a urea group, R2 is a tetrazolyl group with a C—N bond to the urea group, and R3 is a triazolyl, heterocyclic-triazine, heterocyclic amine, aromatic amine, alkenyl, alkynyl, or nitramine group linked to the free nitrogen on the urea group.