Propellant compositions including stabilized red phosphorus, a method of forming same, and an ordnance element including the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C06B-045/00
C06B-045/18
C06B-045/30
C06B-045/32
C06B-039/00
D03D-023/00
D03D-043/00
출원번호
US-0222751
(2011-08-31)
등록번호
US-8641842
(2014-02-04)
발명자
/ 주소
Hafner, Matthew T.
Balangue, Ruben
Clark, Danny D.
Westbrook, III, John William
출원인 / 주소
Alliant Techsystems Inc.
대리인 / 주소
TraskBritt
인용정보
피인용 횟수 :
32인용 특허 :
48
초록▼
Propellant compositions include an energetic binder, such as nitrocellulose, and a stabilized, encapsulated red phosphorous as a ballistic modifier. The propellant composition may additionally include an energetic plasticizer, such as nitroglycerine. For example, the propellant composition may be fo
Propellant compositions include an energetic binder, such as nitrocellulose, and a stabilized, encapsulated red phosphorous as a ballistic modifier. The propellant composition may additionally include an energetic plasticizer, such as nitroglycerine. For example, the propellant composition may be formed by mixing a double or multi base propellant that includes nitrocellulose plasticized with nitroglycerine with the stabilized, encapsulated red phosphorus. The propellant compositions may be substantially lead-free and may exhibit improved ballistic properties. Methods of forming such propellant compositions and an ordnance device including such propellant compositions are also disclosed.
대표청구항▼
1. A propellant composition, comprising: nitrocellulose;at least one of hydroxyl-terminated polybutadiene, carboxy-terminated polybutadiene, a glycidyl azide polymer, an oxetane, and an oxirane polymer;at least one stabilizer selected from the group consisting of 1,3-diethyl-1,3-diphenylurea, diphen
1. A propellant composition, comprising: nitrocellulose;at least one of hydroxyl-terminated polybutadiene, carboxy-terminated polybutadiene, a glycidyl azide polymer, an oxetane, and an oxirane polymer;at least one stabilizer selected from the group consisting of 1,3-diethyl-1,3-diphenylurea, diphenylamine, N-nitrosodiphenylamine, a carbonate, and N-methyl-p-nitroaniline; anda stabilized red phosphorous encapsulated by a polymer other than nitrocellulose. 2. The propellant composition of claim 1, further comprising at least one energetic plasticizer comprising a nitrate ester. 3. The propellant composition of claim 2, wherein the at least one energetic plasticizer comprises nitroglycerine. 4. The propellant composition of claim 1, further comprising at least one of an inert liquid, an oxidizer, a flash suppressor, a metal fuel, a carbon compound, a solvent, and a surfactant. 5. An ordnance element, comprising: a propellant composition comprising a stabilized red phosphorus, at least one stabilizer selected from the group consisting of 1,3-diethyl-1,3-diphenylurea, diphenylamine, N-nitrosodiphenylamine, a carbonate, and N-methyl-p-nitroaniline, at least one of hydroxyl-terminated polybutadiene, carboxy-terminated polybutadiene, a glycidyl azide polymer, an oxetane, and an oxirane polymer, and nitrocellulose, the stabilized red phosphorus encapsulated by a polymer other than nitrocellulose; anda primer. 6. The ordnance element of claim 5, wherein the primer comprises stabilized, encapsulated red phosphorus, at least one oxidizer, at least one secondary explosive composition, at least one metal, and at least one acid resistant binder. 7. The ordnance element of claim 5, wherein the primer comprises red phosphorus stabilized by an acid scavenger and a polymer. 8. The ordnance element of claim 5, further comprising an energetic plasticizer. 9. The ordnance element of claim 8, wherein the energetic plasticizer comprises nitroglycerine. 10. The ordnance element of claim 8, wherein the nitrocellulose is plasticized with the energetic plasticizer. 11. The ordnance element of claim 5, wherein the stabilized red phosphorus is present in an amount of between about 1 wt % and about 10 wt % of a total weight of the propellant composition. 12. A propellant composition, comprising: nitrocellulose;a stabilized, encapsulated red phosphorous;at least one inert liquid selected from the group consisting of an alkyl acetate, a phthalate, an adipate, triacetin, a citric acid ester, a phosphoric acid ester, and urethane;at least one energetic plasticizer comprising a nitrate ester; andnitroglycerin, dibutyl phthalate, polyester adipate, 1,3-diethyl-1,3-diphenylurea, rosin, ethyl acetate, diphenylamine, N-nitrosodiphenylamine, potassium nitrate, potassium sulfate, tin dioxide, graphite, and calcium carbonate. 13. A propellant composition, comprising: nitrocellulose;a stabilized, encapsulated red phosphorous; andat least one of hydroxyl-terminated polybutadiene, carboxy-terminated polybutadiene, a glycidyl azide polymer, an oxetane, and an oxirane polymer. 14. A propellant composition, comprising: nitrocellulose;at least one surfactant comprising rosin; anda stabilized, encapsulated red phosphorous comprising red phosphorus coated with a metal oxide and a polymer comprising an epoxy resin, melamine resin, phenol formaldehyde resin, polyurethane resin, or mixtures thereof. 15. The propellant composition of claim 4, wherein the surfactant comprises rosin. 16. The propellant composition of claim 14, further comprising: diphenylamine, dinitrotoluene, potassium sulfate, and graphite. 17. The propellant composition of claim 14, further comprising: 1,3-diethyl-1,3-diphenylurea, diphenylamine, N-nitrosodiphenylamine, and calcium carbonate. 18. The propellant composition of claim 14, further comprising: nitroglycerin, dibutyl phthalate, polyester adipate, 1,3-diethyl-1,3-diphenylurea, rosin, ethyl acetate, diphenylamine, N-nitrosodiphenylamine, potassium nitrate, potassium sulfate, tin dioxide, graphite, and calcium carbonate. 19. A propellant composition, comprising: nitrocellulose;at least one of hydroxyl-terminated polybutadiene, carboxy-terminated polybutadiene, a glycidyl azide polymer, an oxetane, and an oxirane polymer; anda stabilized, encapsulated red phosphorous encapsulated by a polymer other than nitrocellulose. 20. The propellant composition of claim 12, further comprising at least one of hydroxyl-terminated polybutadiene, carboxy-terminated polybutadiene, a glycidyl azide polymer, an oxetane, and an oxirane polymer. 21. The propellant composition of claim 14, further comprising at least one of hydroxyl-terminated polybutadiene, carboxy-terminated polybutadiene, a glycidyl azide polymer, an oxetane, and an oxirane polymer.
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