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1. (WO2002028544) SUPPORTED TUNGSTEN CARBIDE MATERIAL
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/028544    International Application No.:    PCT/US2001/026874
Publication Date: 11.04.2002 International Filing Date: 30.08.2001
Chapter 2 Demand Filed:    15.03.2002    
IPC:
B01J 21/02 (2006.01), B01J 21/04 (2006.01), B01J 21/18 (2006.01), B01J 27/22 (2006.01), B01J 35/00 (2006.01), B01J 37/08 (2006.01), C01B 31/34 (2006.01), C04B 41/45 (2006.01), C04B 41/81 (2006.01)
Applicants: OSRAM SYLVANIA INC. [US/US]; 100 Endicott Street Danvers, MA 01923 (US)
Inventors: CHRISTIAN, Joel, B.; (US).
DANG, Tuan, A.; (US).
MENDENHALL, Robert, G.; (US)
Agent: PERKINS, Thomas, W.; Young & Thompson 745 South 23rd Street Arlington, VA 22202 (US)
Priority Data:
09/675,771 29.09.2000 US
Title (EN) SUPPORTED TUNGSTEN CARBIDE MATERIAL
(FR) MATERIAU SUPPORTE A BASE DE CARBURE DE TUNGSTENE
Abstract: front page image
(EN)A supported tungsten carbide material is provided. The material has a unique structure as defined by its x-ray diffraction pattern and consists of extremely small crystallites on the order of about 15 t about 30 angstroms in size. The tungsten carbide material is supported on a high-surface-area support to allow for a greater number of active sites for catalysis. The support consists preferably of a high-surface-area carbon.
(FR)L'invention concerne un matériau supporté à base carbure de tungstène. Ce matériau présente une structure unique définie par le diagramme de diffraction des rayons X et consiste en des cristallites extrêmement petites de l'ordre d'environ 15 à environ 30 angströms. Selon l'invention, le matériau à base carbure de tungstène est supporté par un support de surface active étendue afin de permettre à un plus grand nombre de sites actifs d'être catalysés. Le support consiste, de préférence, en un carbone de surface active étendue.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, UZ, VN, YU, ZA, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, 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)