Composition for generating nitrogenous gas and including azodicarbonamide, and method for generating nitrogen gas by decomposition of said composition
US8287834B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2009 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Apr 3, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J9/103
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.