Composition for generating nitrogenous gas and including azodicarbonamide, and method for generating nitrogen gas by decomposition of said composition
First Claim
1. A composition which is capable of generating nitrogenous gas by decomposition, comprising:
- from 20 to 80% by weight of azodicarbonamide,from 20 to 80% by weight of a nitrogenous reducing charge,from 0 to less than 10% by weight of at least one additive;
said azodicarbonamide and said nitrogenous reducing charge representing at least 90% by weight of the composition, and the composition is devoid of oxidizing charge, andsaid nitrogenous reducing charge comprising at least one selected from the group consisting of;
at least one compound from a first family of reducing components chosen from tetrazole, tetrazole derivatives and their salts, salts of bitetrazole and of its derivatives, 5,5′
-azobitetrazole salts, polyvinyltetrazoles and their mixtures; and
at least one compound from a second family of reducing components chosen from dicyandiamide, 1-hydrobenzotriazole, silicon nitride, nitroguanidine, guanidine nitrate and their mixtures.
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Accused Products
Abstract
Compositions to generate nitrogenous gas, with a low decomposition temperature, and processes for the generation of nitrogenous gas comprising the decomposition of such compositions, are provided. The compositions include azodicarbonamide, a nitrogenous reducing charge, and at least one additive. The azodicarbonamide and the nitrogenous reducing charge represent at least 90% of their weight. The nitrogenous reducing charge includes at least one compound from a first family of reducing components chosen from tetrazole, tetrazole derivatives and their salts, salts of bitetrazole and of its derivatives, 5,5′-azobitetrazole salts, polyvinyltetrazoles and their mixtures; and/or at least one compound from a second family of reducing components chosen from dicyandiamide, 1-hydrobenzotriazole, silicon nitride, nitroguanidine, guanidine nitrate and their mixtures. a nitrogenous reducing charge and azodicarbonamide.
12 Citations
17 Claims
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1. A composition which is capable of generating nitrogenous gas by decomposition, comprising:
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from 20 to 80% by weight of azodicarbonamide, from 20 to 80% by weight of a nitrogenous reducing charge, from 0 to less than 10% by weight of at least one additive; said azodicarbonamide and said nitrogenous reducing charge representing at least 90% by weight of the composition, and the composition is devoid of oxidizing charge, and said nitrogenous reducing charge comprising at least one selected from the group consisting of; at least one compound from a first family of reducing components chosen from tetrazole, tetrazole derivatives and their salts, salts of bitetrazole and of its derivatives, 5,5′
-azobitetrazole salts, polyvinyltetrazoles and their mixtures; andat least one compound from a second family of reducing components chosen from dicyandiamide, 1-hydrobenzotriazole, silicon nitride, nitroguanidine, guanidine nitrate and their mixtures. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification