C - Chemistry – Metallurgy – 25 – B
Patent
C - Chemistry, Metallurgy
25
B
C25B 1/02 (2006.01) B01D 53/00 (2006.01) G03C 5/26 (2006.01) G03C 5/31 (2006.01) G03C 7/44 (2006.01) G03D 3/00 (2006.01) G03D 13/00 (2006.01)
Patent
CA 2248670
The invention concerns a method for decreasing the oxygen content of the atmosphere above photographic processing baths. The method consists of using a solid electrolyte which is a compound of bismuth, vanadium or another transition metal. The oxidation in air is thus minimized and the life of the bath is extended.
Boivin Jean-Claude Freddy
Mairesse Gaetan Jean-Marie
Martin Didier Jean
Nowogrocki Guy Jean
Poncelet Olivier Jean
Eastman Kodak Company
Gowling Lafleur Henderson Llp
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