Containing Nitrogen Bonded Directly To Carbon Patents (Class 558/487)
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Patent number: 8609880Abstract: A process for the preparation of an energetic nitrate ester compound and related intermediates is provided.Type: GrantFiled: September 4, 2012Date of Patent: December 17, 2013Inventors: David E. Chavez, Darren L. Naud, Michael A. Hiskey
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Patent number: 8324421Abstract: Preparation of an energetic nitrate ester compound and related intermediates is provided.Type: GrantFiled: September 24, 2009Date of Patent: December 4, 2012Assignee: U.S. Department of EnergyInventors: David E. Chavez, Darren L. Naud, Michael A. Hiskey
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Publication number: 20120108838Abstract: Preparation of an energetic nitrate ester compound and related intermediates is provided.Type: ApplicationFiled: September 24, 2009Publication date: May 3, 2012Applicant: US Department of EnergyInventors: David E. Chavez, Darren L. Naud, Michael A. Hiskey
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Patent number: 6325876Abstract: A compound has the structure of 3,3-bis(difluoroamino)-1,5-dinitratopentane and is useful in energetic materials.Type: GrantFiled: March 2, 2000Date of Patent: December 4, 2001Assignee: The United States of America as represented by the Secretary of the NavyInventors: Horst G. Adolph, Nirupam J. Trivedi
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Publication number: 20010011074Abstract: New camitine derivatives of general formula (I) are described in racemic and/or optically active form, as well as the process for their preparation and their use as pharmaceutical anti-angina active ingredients for the treatment of ischaemic heart disease.Type: ApplicationFiled: March 13, 2001Publication date: August 2, 2001Inventors: Oreste Piccolo, Roberto Castagnani, Paolo De Witt
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Patent number: 5955629Abstract: Liquid nitromalonate polyesters and methods for their preparation are disclosed. Solid propellants are provided which employ as the binder a nitromalonate polyester. These propellants are resistant to plasticizer syneresis and crystallization and provide an increase in the specific impulse of the propellant.Type: GrantFiled: April 26, 1989Date of Patent: September 21, 1999Assignee: Cordant Technologies Inc.Inventors: J. B. Canterberry, W. H. Graham
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Patent number: 5892067Abstract: Synthesis of a vinyl terminated polymer by reacting a cationically polymeable monomer in the form of a cyclic ether with an acid chloride in a suitable solvent and in the presence of a Lewis acid. The vinyl-terminated polymers can be polymerized with other appropriate monomers resulting in thermoplastic elastomers having suitable properties for use as binders for explosives and propellants.Type: GrantFiled: June 9, 1997Date of Patent: April 6, 1999Assignee: The United States of America as represented by the Secretary of the NavyInventor: Mostafa A. H. Talukder
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Patent number: 4985584Abstract: A process for the production of a high energy nitrate ester involves reacting, in an inert organic solvent, a heterocyclic compound, selected from oxiranes, oxetanes, N-substituted aziridines and N-substituted azetidines, with either N.sub.2 O.sub.4 or N.sub.2 O.sub.5, and when the compound is reacted with N.sub.2 O.sub.4, oxidizing the O- or N-nitrate substituents or substituent in the product to O- or N-nitrate substituent or substituents. The remaining ring carbon atoms on the heterocyclic compound may be substituted or unsubstituted. Preferred substituent groups for the C and/or N ring atoms on the compound include alkyl, cyanoalkyl, haloalkyl, nitroalkyl, and substituted aryl.Several novel nitrate ester are also provided, including nitrated derivatives of polybutadiene, in which between 1% and 25% of the carbon atoms in the polymer are substituted by vicinal nitrate ester (--ONO.sub.2) groups.Type: GrantFiled: October 27, 1986Date of Patent: January 15, 1991Assignee: Secretary of State for DefenceInventors: Ross W. Millar, Norman C. Paul, David H. Richards
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Patent number: 4820859Abstract: A process for the production of a high energy material involves reacting, in an inert organic solvent, a heterocyclic compound selected from oxirane, aziridine, oxetane or azetidine with a nitrogen oxide selected from dinitrogen tetroxide (N.sub.2 O.sub.4) and dinitrogen pentoxide (N.sub.2 O.sub.5) and, when the nitrogen oxide is N.sub.2 O.sub.4, oxidizing the O- or N- nitroso substituent or substituents in the product obtained to O- or N- nitro substituent or substituents. The heterocyclic compounds may be substituents or unsubstituted. In the former case the preferred substituents groups are halogen, alkyl, alkenyl, nitro and epoxy (as in epoxidized polybutadiene). The solvent is preferably a chlorinated alkane.Novel nitrated derivatives of polybutadiene, in which between 1% and 25% of the carbon atoms in the polymer are substituted by nitrate (ONO.sub.2), are also provided. These novel materials are liquid rubbers when the polybutadiene starting material has a molecular weight between 2000 and 10000.Type: GrantFiled: November 5, 1985Date of Patent: April 11, 1989Assignee: Secretary of State for Defence in Her Majesty's Government of the United KingdomInventors: Ross W. Millar, Norman C. Paul, David H. Richards
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Patent number: 4761250Abstract: A process for producing 1,5-diazido-3-nitrazapentane (DANPE) which comprises the steps of nitrating diethanolamine with nitric acid in a halogenated solvent such as methylene chloride to form 1,5-dinitrato-3-nitrazapentane (DINA) as intermediate, solvent transferring such intermediate from the halogenated solvent to dimethylsulfoxide, adding sodium azide to the resulting solution to form DANPE as product, and solvent transferring such product from the dimethylsulfoxide to another halogenated solvent, e.g. methylene chloride. Thus, both DINA intermediate and DANPE product are prepared in solution, and both can also be purified in solution, eliminating the necessity for isolating the neat, hazardous compounds. The DANPE product can be further solvent transferred from the halogenated solvent to ethyl acetate to form an ethyl acetate solution of DANPE, which can be used to furnish the DANPE as an energetic plasticizer, e.g. in the production of gun propellants.Type: GrantFiled: August 9, 1985Date of Patent: August 2, 1988Assignee: Rockwell International CorporationInventors: Milton B. Frankel, Edward F. Witucki