http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6210504-B1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2a6a9431aa1fe5109ca95ad4e332231b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C06D5-04 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C06B47-00 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C06B47-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C06D5-04 |
| filingDate | 1999-05-21^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2001-04-03^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4b4e5f6dce97c71e615b799952d3bf33 |
| publicationDate | 2001-04-03^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | US-6210504-B1 |
| titleOfInvention | Tertiary amine azides in liquid or gel fuels in gas generator systems |
| abstract | A liquid gas generator system supplies gas pressure only when it is needed. Hydrazine and hydrazine blends have been considered for liquid gas generators because of their ability to decompose at ambient conditions on an iridium catalyst to form warm (1000° F. to 1500° F.) gases. Hydrazine is undesirable because of its toxicity and high melting point (34° F.). The tertiary amine azides, which are defined hereinabove and below, are non-carcinogenic alternatives to hydrazine in liquid or gel gas generator systems. These tertiary amines azides are non-carcinogenic alternatives for use with a thermal reactor bed where exothermic reaction releases enough heat to sustain decomposition for furnishing gases for gas generator systems employed. A tertiary amine typically has three hydrocarbons moieties attached to the nitrogen atom. The tertiary amine azides of this invention can have no more than seven carbon atoms in the molecules. Further, these tertiary amine azides can contain no more than two azide moieties that are attached at the opposite end of the hydrocarbon portions from the amine nitrogen atom. A special case that still meet these requirements is pyrollidine moiety (five atom cyclic structure wherein each end of a linear four carbon atom structure is attached to a common nitrogen atom), and the common nitrogen atom has as attached ethyl azide moiety. A fuel gel propellant fuel that would be a suitable replacement for MMH must be less toxic and have a competitive density impulse for the same engine operating conditions. Three compounds meeting the specified requirements have been synthesized and their physical and chemical properties are evaluated herein as shown in Table 1. The chemical names for these compounds are dimethylaminoethylazide (DMAZ), pyrollidinylethylazide (PYAZ), and bis(ethyazide)methylamine (BAZ). DMAZ has a density of 0.933 and a heat of formation of 580 (cal/g) as compared with MMH having a density of 0.88 and heat of formation of 276 (cal/g). |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6652682-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013133242-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/DE-102017202207-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6962633-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6635131-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8685186-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8382922-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8425700-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2012168046-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7896987-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105198773-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-8435364-B2 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6299654-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2009320973-A1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7338540-B1 http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10974172-B2 |
| priorityDate | 1999-05-21^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
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