IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0716980
(2003-11-14)
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발명자
/ 주소 |
- Chan, May L.
- Turner, Alan D.
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출원인 / 주소 |
- The United States of America as represented by the Secretary of the Navy
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인용정보 |
피인용 횟수 :
3 인용 특허 :
7 |
초록
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This invention relates to energetic compositions, which offer increased performance in conjunction with a total absence of halogen based oxidizers to eliminate exhaust products, such as hydrogen chloride. The oxidizers of choice are various combinations neat ammonium dinitramide, ammonium dinitramid
This invention relates to energetic compositions, which offer increased performance in conjunction with a total absence of halogen based oxidizers to eliminate exhaust products, such as hydrogen chloride. The oxidizers of choice are various combinations neat ammonium dinitramide, ammonium dinitramide prills and CL-20, because these oxidizers do not produce halogen containing exhaust products, such as the HCl gas of ammonium perchlorate. The exhaust these novel propellants consist mostly of CO2, H2O, N2, and small amounts of CO. These exhaust species are friendlier and much less hazardous to the environment than those emitted by conventional AP-based propellants. The plasticizers are selected from energetic plasticizers that do not contain halogens, but maintain other desirable properties.
대표청구항
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1. A minimum signature solid propellant formulation comprising:about 6.0 to about 9.0 weight % of at least one polymeric binder, wherein said binder comprises at least one of polycaprolactone; about 21 to about 25 weight % of at least one energetic plasticizer; about 25 to about 45 weight % of ammon
1. A minimum signature solid propellant formulation comprising:about 6.0 to about 9.0 weight % of at least one polymeric binder, wherein said binder comprises at least one of polycaprolactone; about 21 to about 25 weight % of at least one energetic plasticizer; about 25 to about 45 weight % of ammonium dinitramide prills having a particle size of about 100 μm to about 200 μm as an ADN prills oxidizer; and about 15 to about 25 weight % of CL-20. 2. The solid propellant formulation of claim 1, wherein said CL-20 has a particle size of about 3 μm.3. The solid propellant formulation of claim 1, wherein said binder is further selected from the group consisting of poly(diethyleneglycol-4,8-dinitrazaundecanoate) and polyglycidyl nitrate.4. The solid propellant formulation of claim 1, wherein said plasticizer is selected from the group consisting of butanetriol trinitrate, trimethylolethane trinitrate, n-butyl-2-nitratoethyl-nitramine and any combination thereof.5. The solid propellant formulation of claims 1, further comprising at least one member selected from a curative, a stabilizer, a cure catalyst, crosslinker, a burn rate modifier and a bonding agent.6. The solid propellant formulation of claim 5, wherein said curative is selected from the group consisting of hexamethylene diisocyanate, m-tetramethylxylene diisocyanate, dimeryl diisocyanate, toluene diisocyanate, polymeric hexamethylene diisocyanate, isophorone diisocyanate, biuret triisocyanate and any combination thereof.7. The solid propellant formulation of claim 5, wherein said cure catalyst is selected from the group consisting of triphenyl bismuth triphenyltin chloride, dibutyltin diacetate and dibutyltin dilaurate.8. The solid propellant formulation of claim 5, wherein said stabilizer is selected from the group consisting of N-methyl-p-nitroaniline and 2-NDPA (2-nitrodiphenylamine).9. The solid propellant formulation of claim 5, wherein said burn rate modifier is carbon black.10. The solid propellant formulation of claim 5, wherein said crosslinker is nitrocellulose.11. A minimum signature solid propellant formulation comprising:about 6.0 to about 9.2 weight % of at least one polymeric binder, wherein said polymeric binder is polycaprolactone; about 21 to about 28 weight % of at least one energetic plasticizer; about 35 to about 45 weight % of ammonium dinitramide prills having a particle size of about 100 μm to about 200 μm as an ADN prills oxidizer; and about 15 to about 25 weight % of CL-20. 12. The solid propellant formulation of claim 11, wherein said energetic plasticizer comprises:about 4.0 to about 6.0 weight % of butanetriol trinitrate; about 7.0 to about 9.0 weight % of trimethylolethane trinitrate; and about 10.0 to about 13.0 weight % of n-butyl-2-nitratoethyl-nitramine. 13. The solid propellant formulation of claim 11, further comprising at least one member selected from a curative, a stabilizer, a cure catalyst, crosslinker, a burn rate modifier and a bonding agent.
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