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Machine translation
1. (WO2011139384) BORON NITRIDE AND BORON NITRIDE NANOTUBE MATERIALS FOR RADIATION SHIELDING
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2011/139384    International Application No.:    PCT/US2011/000809
Publication Date: 10.11.2011 International Filing Date: 09.05.2011
IPC:
G21F 3/02 (2006.01)
Applicants: NATIONAL INSTITUTE OF AEROSPACE ASSOCIATES [US/US]; 100 Exploration Way Hampton, VA 23666-6147 (US) (For All Designated States Except US).
UNITED STATES OF AMERICA as represented by THE ADMINISTRATOR OF THE NATIONAL AERONAUTICS AND SPACE ADMINISTRATION [US/US]; Washington, D.C.20546 (US) (For All Designated States Except US).
JEFFERSON SCIENCE ASSOCIATES, LLC [US/US]; 12000 Jefferson Avenue Newport News, VA 23606 (US) (For All Designated States Except US).
KANG, Jin Ho [KR/US]; (US) (For US Only).
KIM, Jae-Woo [KR/US]; (US) (For US Only).
HARRISON, Joycelyn, S. [US/US]; (US) (For US Only).
SMITH, Michael, W. [US/US]; (US) (For US Only).
JORDAN, Kevin [US/US]; (US) (For US Only).
LOWTHER, Sharon, E. [US/US]; (US) (For US Only).
LILLEHEI, Peter, T. [US/US]; (US) (For US Only).
THIBEAULT, Sheila, A. [US/US]; (US) (For US Only)
Inventors: KANG, Jin Ho; (US).
KIM, Jae-Woo; (US).
HARRISON, Joycelyn, S.; (US).
SMITH, Michael, W.; (US).
JORDAN, Kevin; (US).
LOWTHER, Sharon, E.; (US).
LILLEHEI, Peter, T.; (US).
THIBEAULT, Sheila, A.; (US).
SAUTI, Godfrey; (US).
PARK, Cheol; (US)
Agent: CHASTEEN, Kimberly, A.; C/o Kaufman & Canoles 150 West Main Street, P.o.box 3037 Norfolk, VA 23514-3037 (US)
Priority Data:
61/395,113 07.05.2010 US
13/068,329 09.05.2011 US
Title (EN) BORON NITRIDE AND BORON NITRIDE NANOTUBE MATERIALS FOR RADIATION SHIELDING
(FR) NITRURE DE BORE ET MATÉRIAUX DE NANOTUBE DE NITRURE DE BORE PROTÉGEANT DU RAYONNEMENT
Abstract: front page image
(EN)Effective radiation shielding is required to protect crew and equipment in various fields including aerospace, defense, medicine and power generation. Light elements and in particular hydrogen are most effective at shielding against high-energy particles including galactic cosmic rays, solar energetic particles and fast neutrons. However, pure hydrogen is highly flammable, has a low neutron absorption cross-section, and cannot be made into structural components. Nanocomposites containing the light elements Boron, Nitrogen, Carbon and Hydrogen as well dispersed boron nano-particles, boron nitride nanotubes (BNNTs) and boron nitride nano- platelets,in a matrix, provide effective radiation shielding materials in various functional forms. Boron and nitrogen have large neutron absorption cross-sections and wide absorption spectra. The incorporation of boron and nitrogen containing nanomaterials into hydrogen containing matrices provides composites that can effectively shield against neutrons and a wide range of radiation species of all energies without fragmentation and the generation of harmful secondary particles.
(FR)Une protection efficace contre le rayonnement est nécessaire pour protéger le personnel et le matériel dans divers domaines dont l'aérospatiale, la défense, la médecine et la production d'énergie. Les éléments légers, notamment l'hydrogène, sont très efficaces en termes de protection contre des particules de haute énergie telles que des rayons cosmiques galactiques, des particules énergétiques solaires et des neutrons rapides. En revanche, l'hydrogène pur est hautement inflammable, comporte une section transversale à faible absorption de neutrons et ne peut pas servir à la fabrication de composants structuraux. Selon l'invention, des nanocomposites contenant les éléments légers tels que bore, azote, carbone et hydrogène, ainsi que des nanoparticules de bore correctement dispersées, des nanotubes de nitrure de bore (BNNT) et des nanoplaquettes de nitrure de bore, dans une matrice, sont des matériaux de protection efficaces contre le rayonnement sous diverses formes fonctionnelles. Le bore et l'azote comportent des sections transversales à absorption élevée de neutrons et un grand spectre d'absorption. L'intégration de bore et d'azote contenant des nanomatériaux dans de l'hydrogène contenant des matrices procure des composites qui peuvent efficacement protéger des neutrons et une grande plage de types de rayonnement de toutes sortes d'énergie sans fragmentation ni génération de particules secondaires nocives.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)