Patent ID: 7037596

Claim:
A catalytic composition for deodorizing or oxidizing purposes, the composition comprising a porous coating on a support, prepared by a process comprising: (i) applying to the support a coating material comprising: (1) a polycondensate of: (A) one or more silanes of formula R a SiX (4a) where each R independently represents a non-hydrolyzable group; each X independently represents a hydroxy group or a hydrolyzable group; and a is 0 or an integer of from 1 to 3 and is greater than 0 for at least 50 mol % of the one or more silanes; or an oligomer derived therefrom; (B) optionally, one or more compounds of glass-forming elements; (2) particles having an average diameter of from 1 μm to 20 μm and comprising transition metal oxides which comprise at least oxides of Mn and Ce and exhibit catalytic activity in at least one of a deodorization and an oxidation process, a weight ratio of the particles to the polycondensate being from 1:10 to 2:1; (ii) thermally treating the applied coating material at a temperature of from 300° C. to 400° C. to form a coating having a thickness of from 0.01 μm to 500 μm, wherein the support is located within, connected to or part of a transport means, a combustion unit, a caravan, a tank, a gas station, a digestion tower of a sewage treatment plant, a composting unit, a manure station, an animal stall, a silo, a waste air unit used in livestock farming, fish processing, cheese dairies, waste Processing and chemical industry plants, a gas mask, or a gas sensor.