IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
UP-0920976
(2004-08-18)
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등록번호 |
US-7578482
(2009-09-08)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
2 인용 특허 :
1 |
초록
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A high energy, e.g., ultraviolet (UV), catalyzed decomposing foam encapsulating a payload to be boosted in space provides an ultra-light weight, adaptable means to facilitate survival of much lighter, smaller satellites and space hardware under boost environment. The decomposable foam is to contain
A high energy, e.g., ultraviolet (UV), catalyzed decomposing foam encapsulating a payload to be boosted in space provides an ultra-light weight, adaptable means to facilitate survival of much lighter, smaller satellites and space hardware under boost environment. The decomposable foam is to contain multiple satellites within a booster payload in lieu of the traditionally heavy and complex structural framework. The catalyzed decomposing foam significantly lowers the weight and structure of all space hardware. This packaging system is especially beneficial where several or even hundreds of satellites are required for a constellation system, thereby significantly benefiting all technologies applied in space, ranging from the telecommunication industry to DOD applications. In addition to weight and cost savings, advantages of this foam are many in that it is adaptable to any payload shape as it may be injected, sprayed, formed, molded, easily cut or manufactured to support any geometry required.
대표청구항
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What is claimed is: 1. A payload for launching into space by a vehicle, said payload contained within said vehicle and at least partially surrounded by a high energy catalyzed sublimating structural foam decomposable into post-reactive by-products comprising alcohols, carbon dioxide, and water by h
What is claimed is: 1. A payload for launching into space by a vehicle, said payload contained within said vehicle and at least partially surrounded by a high energy catalyzed sublimating structural foam decomposable into post-reactive by-products comprising alcohols, carbon dioxide, and water by high energy electromagnetic radiation that is less than about 10-7 meters, said sublimating structural foam including a free radical initiator. 2. The payload of claim wherein said high energy electromagnetic radiation is ultraviolet radiation. 3. The payload of claim 2 wherein said high energy electromagnetic radiation is low wave ultraviolet radiation of less than 290 nanometers. 4. The payload of claim 1 wherein said decomposable foam comprises a polymer selected from the group consisting of expanded polystyrenes, extruded polystyrenes, polyethylenes, polypropylenes, propylene copolymers, and polyurethanes. 5. The payload of claim 1 wherein said free radical initiator is selected from the group consisting of aluminum oxide, hydrogen peroxide, sulfur trioxide, sulfur fluoride, nitrous oxide, benzil dimethyl ketal, benzoyl peroxide, di-iso-propyl peroxydicarbonate, di-sec-butyl peroxydicarbonate, tert-butylperoxy pivalate, caprylyl peroxide, lauroyl peroxide, acetyl peroxide, tert-butyl peroxyisobutyrate, p-chlorobenzoyl peroxide, hydroxyheptyl peroxide, di-tert-butyl diperphthalate, tert-butyl peracetate, t-butylperoxy iso-propyl carbonate, tert-butyl perbenzoate, dicumyl peroxide, tert-butyl hydroperoxide, methyl ethyl ketone peroxide, di-tert-butyl peroxide, p-menthane hydroperoxide, pinane hydroperoxide, cumene hydroperoxide, 2,5-dimethyl-2,5-dihydroperoxide, tert-butyl hydroperoxide-90, ammonium persulfate, potassium persulfate, azo compounds, tert-butyl peroxy-2-ethylhexanoate, and di(tert-butylcyclohexyl)peroxydicarbonate, and organic peroxides. 6. The payload of claim 5 wherein said azo compounds are selected from the group consisting of 2,2'-azobisiso-butyronitrile, 4,4'-azobis(cyclohexanecarbonitrile), 4,4'-azobis(4-cyano-valeric acid) and 2,2'-azobis(2-methylpropane), and wherein said organic peroxides are selected from the group consisting of dicumyl peroxide, dioctanoyl peroxide, dimyristyl peroxide, dilauroyl peroxide, 1,1-di(tert-butylperoxycyclohexane), tert-butyl peroxydiethylacetate, and cumyl hydroperoxide. 7. The payload of claim 1 wherein said free radical initiator is present in an amount sufficient to initiate decomposition of said decomposable foam upon exposure to said high energy radiation. 8. The payload of claim 1 wherein structural media are embedded within said decomposable foam. 9. The payload of claim 8 wherein said structural media are selected from the group consisting of glass, metal flakes, fibers, plastics, and rubber. 10. A vehicle for launching a payload into space, said payload protected within said vehicle against launching forces by a high energy catalyzed sublimating structural foam that at least partially surrounds said payload, wherein said sublimating structural foam is decomposable into post-reactive by-products comprising alcohols, carbon dioxide, and water by exposure to high energy electromagnetic radiation that is less than about 10-7 meters, said sublimating structural foam including a free radical initiator. 11. The vehicle of claim 10 wherein said high energy electromagnetic radiation is ultraviolet radiation. 12. The vehicle of claim 11 wherein said high energy electromagnetic radiation is low wave ultraviolet radiation of less than 290 nanometers. 13. The vehicle of claim 10 wherein said decomposable foam comprises a polymer selected from the group consisting of expanded polystyrenes, extruded polystyrenes, polyethylenes, polypropylenes, propylene copolymers, and polyurethanes. 14. The vehicle of claim 10 wherein said free radical initiator is selected from the group consisting of aluminum oxide, hydrogen peroxide, sulfur trioxide, sulfur fluoride, nitrous oxide, benzil dimethyl ketal, benzoyl peroxide, di-iso-propyl peroxydicarbonate, di-sec-butyl peroxydicarbonate, tert-butylperoxy pivalate, caprylyl peroxide, lauroyl peroxide, acetyl peroxide, tert-butyl peroxyisobutyrate, p-chlorobenzoyl peroxide, hydroxyheptyl peroxide, di-tert-butyl diperphthalate, tert-butyl peracetate, t-butylperoxy iso-propyl carbonate, tert-butyl perbenzoate, dicumyl peroxide, tert-butyl hydroperoxide, methyl ethyl ketone peroxide, di-tert-butyl peroxide, p-menthane hydroperoxide, pinane hydroperoxide, cumene hydroperoxide, 2,5-dimethyl-2,5-dihydroperoxide, tert-butyl hydroperoxide-90, ammonium persulfate, potassium persulfate, azo compounds, tert-butyl peroxy-2-ethylhexanoate, and di(tert-butylcyclohexyl)peroxydicarbonate, and organic peroxides. 15. The vehicle of claim 14 wherein said azo compounds are selected from the group consisting of 2,2'-azobisiso-butyronitrile, 4,4'-azobis(cyclohexanecarbonitrile), 4,4'-azobis(4-cyano-valeric acid) and 2,2'-azobis(2-methylpropane), and wherein said organic peroxides are selected from the group consisting of dicumyl peroxide, dioctanoyl peroxide, dimyristyl peroxide, dilauroyl peroxide, 1,1-di(tert-butylperoxycyclohexane), tert-butyl peroxydiethylacetate, and cumyl hydroperoxide. 16. The vehicle of claim 10 wherein said free radical initiator is present in an amount sufficient to initiate decomposition of said decomposable foam upon exposure to said high energy radiation. 17. The vehicle of claim 10 wherein structural media are embedded within said decomposable foam. 18. The vehicle of claim 17 wherein said structural media are selected from the group consisting of glass, metal flakes, fibers, plastics, and rubber. 19. A method for protecting a payload during launch into space, said method comprising: at least partially surrounding said payload with a high energy catalyzed sublimating structural foam that is decomposable into post-reactive by-products comprising alcohols, carbon dioxide, and water by high energy electromagnetic radiation that is less than about 10-7 meters, said sublimating structural foam including a free radical initiator; and decomposing said foam once said payload is in space by exposure to said high energy electromagnetic radiation. 20. The method of claim 19 wherein said high energy electromagnetic radiation is ultraviolet radiation. 21. The method of claim 20 wherein said high energy electromagnetic radiation is low wave ultraviolet radiation of less than 290 nanometers. 22. The method of claim 19 wherein said decomposable foam comprises a polymer selected from the group consisting of expanded polystyrenes, extruded polystyrenes, polyethylenes, polypropylenes, propylene copolymers, and polyurethanes. 23. The method of claim 19 wherein said free radical initiator is selected from the group consisting of aluminum oxide, hydrogen peroxide, sulfur trioxide, sulfur fluoride, nitrous oxide, benzil dimethyl ketal benzoyl peroxide, di-iso-propyl peroxydicarbonate, di-sec-butyl peroxydicarbonate, tert-butylperoxy pivalate, caprylyl peroxide, lauroyl peroxide, acetyl peroxide, tert-butyl peroxyisobutyrate, p-chlorobenzoyl peroxide, hydroxyheptyl peroxide, di-tert-butyl diperphthalate, tert-butyl peracetate, t-butylperoxy iso-propyl carbonate, tert-butyl perbenzoate, dicumyl peroxide, tert-butyl hydroperoxide, methyl ethyl ketone peroxide, di-tert-butyl peroxide, p-menthane hydroperoxide, pinane hydroperoxide, cumene hydroperoxide, 2,5-dimethyl-2,5-dihydroperoxide, tert-butyl hydroperoxide-90, ammonium persulfate, potassium persulfate, azo compounds, tert-butyl peroxy-2-ethylhexanoate, and di(tert-butylcyclohexyl)peroxydicarbonate, and organic peroxides. 24. The method of claim 23 wherein said azo compounds are selected from the group consisting of 2,2'-azobisiso-butyronitrile, 4,4'-azobis(cyclohexanecarbonitrile), 4,4'-azobis(4-cyano-valeric acid) and 2,2'-azobis(2-methylpropane), and wherein said organic peroxides are selected from the group consisting of dicumyl peroxide, dioctanoyl peroxide, dimyristyl peroxide, dilauroyl peroxide, 1,1-di(tert-butylperoxycyclohexane), tert-butyl peroxydiethylacetate, and cumyl hydroperoxide. 25. The method of claim 19 wherein said free radical initiator is added in an amount sufficient to initiate decomposition of said decomposable foam upon exposure to said high energy radiation. 26. The method of claim 19 wherein structural media are embedded within said decomposable foam. 27. The method of claim 26 wherein said structural media are selected from the group consisting of glass, metal flakes, fibers, plastics, and rubber. 28. The payload of claim 1 wherein said free radical initiator generates an oxygen atom free radical upon exposure to said high energy electromagnetic radiation that causes decomposition of said foam. 29. The vehicle of claim 10 wherein said free radical initiator generates an oxygen atom free radical upon exposure to said high energy electromagnetic radiation that causes decomposition of said foam. 30. The method of claim 19 wherein said free radical initiator generates an oxygen atom free radical upon exposure to said high energy electromagnetic radiation that causes decomposition of said foam.
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