| abstract |
A porous ceramic catalyst support or filter to be subjected to a catalyst coating that has undergone an oxide primer coating process is precoated with a crosslinkable polymer barrier layer so that the fine particles of the primer coating are microcracks and / or fines of the ceramic. Prevents entry into pores, the barrier coating is formed of a crosslinkable hydrocarbon polymer at moderate primer coating stabilization temperature or catalyst activation temperature, and selects the micropores / microchannels of the ceramic catalyst support Block. |