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Machine translation
1. (WO1997039980) PROCESS FOR PRODUCING TUNGSTEN OXIDE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1997/039980    International Application No.:    PCT/US1997/004408
Publication Date: 30.10.1997 International Filing Date: 19.03.1997
Chapter 2 Demand Filed:    24.10.1997    
IPC:
C01G 41/00 (2006.01), C01G 41/02 (2006.01), C23C 18/12 (2006.01)
Applicants: MINNESOTA MINING AND MANUFACTURING COMPANY [US/US]; 3M Center, P.O. Box 33427, Saint Paul, MN 55133-3427 (US)
Inventors: BAILEY, John; (US).
BUDD, Kenton, D.; (US).
TRAN, Tai, T.; (US)
Agent: BARDELL, Scott, A.; Minnesota Mining and Manufacturing Company, Office of Intellectual Property Counsel, P.O. Box 33427, Saint Paul, MN 55133-3427 (US).
WERNER, Hans-Karsten; P.O. Box 102241, D-50462 Koln (DE)
Priority Data:
08/639,020 24.04.1996 US
Title (EN) PROCESS FOR PRODUCING TUNGSTEN OXIDE
(FR) PROCEDE DE FABRICATION D'OXYDE DE TUNGSTENE
Abstract: front page image
(EN)A process for producing a tungsten oxide precursor solution that includes converting a peroxypolytungstate solution to a stable oxide polytungstate solution. The precursor solution may subsequently be transformed to tungsten oxide having electrochromic properties.
(FR)Le procédé faisant l'objet de la présente invention consiste à produire une solution précurseur d'oxyde de tungstène par conversion d'une solution de péroxypolytungstate en une solution de polystungstate d'oxyde stable. La solution précurseur peut ensuite être transformée en oxyde de tungstène doté de propriétés électrochromatiques.
Designated States: CA, JP.
European Patent Office (AT, BE, CH, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE).
Publication Language: English (EN)
Filing Language: English (EN)