Patent ID: 6656425
Filing Date: 2003-12-02
Classification: A61L,B01J,C08K,C09D,F24C

Abstract:
A domestic appliance comprising a catalytic composition for deodorizing or oxidizing purposes, the catalytic composition comprising a coating of a coating material containing particles of at least one catalytically active transition metal oxdie on a support, prepared by a process comprising the steps of:(i) applying to the support a coating material comprising: (1) a polycondensate of (A) at least one silane of the formula Raâ€”Siâ€”X(4-a) where each R, which may be the same or different, is a non-hydrolyzable group; each X, which may be the same or different, is a hydroxy group or hydrolyzable group; and a is an integer of 0 to 3 and is greater than 0 for at least 50 mol % of the silanes; or an oligomer derived therefrom, and (B) optionally, at least one compound of a glass-forming element, and (2) particles of at least one catalytically active transition metal oxide, the weight ratio of the particles of the at least one catalytically active transition metal oxide to the polycondensate being from 10:1 to 1:10; and (ii) thermally treating the applied coating material to form the coating, the catalytic composition being a component of the domestic appliance or of a device connected to the domestic appliance.