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US 9,505,666 B2Granted
Methods to desensitize hydrazinium nitroformate (HNF)
AssigneeRaytheon Company
InventorsThomas M. Deppert, David R. Smith, Carl Shanholtz
Life of this patent
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Abstract
Disclosed herein are energetic compositions and methods of making thereof. A composition includes hydrazinium nitroformate (HNF) particles dispersed in a polymeric binder and a bonding agent bonded to a surface of at least a portion the HNF particles. The bonding agent disclosed is a Lewis acid.
Claims15
A composition comprising:
- hydrazinium nitroformate (HNF) particles dispersed in a polymeric binder;
- and
- a bonding agent bonded to a surface of at least a portion the HNF particles;
- wherein the bonding agent is a Lewis acid, and the Lewis acid is a boron-containing polymer having the following structure:
- wherein n is an integer from 1 to 20, and x and y are each independently a hydrogen, an acrylate group, an acyl halide group, an amide group, an amine group, a carboxylate group, a carboxylate thiol group, an ester group, an ether group, a hydroxamic acid group, a hydroxyl group, a methacrylate group, a nitrate group, a nitrile group, a phosphate group, a phosphine group, a phosphonic acid group, a silane group, a sulfate group, a sulfide group, a sulfite group, a thiolate group, an alkane group, an alkene group, an alkyne group, an azide group, an acetal group, an aldehyde group, a diene group, an anhydride group, a 3-membered ring group, 4-membered ring group, a 5-membered ring group, or a 6-membered ring group, or any combination thereof.
2 more elements
A composition comprising:
- HNF oxidizer particles dispersed in a polymeric binder;
- and
- a Lewis acid bonding agent bonded to at least a portion of a surface the HNF particles to form an encapsulating film, wherein the HNF particles have an average diameter in a range between about 5 and about 200 microns.
A method of making a composition, the method comprising:
- coating at least a portion of a surface of HNF particles with a Lewis acid bonding agent to form coated HNF particles with the Lewis acid bonding agent bonded to at least a portion of the surface of the HNF particles to form an encapsulating film, the HNF particles having an average diameter in a range between about 5 and about 200 microns;
- and
- mixing the coated HNF particles with a polymeric binder such that the coated HNF particles are dispersed in the polymeric binder to form the composition.
Dependencies are inferred from the claim text.