Patent ID: 8252374
Filing Date: 2012-08-28
Classification: B01D,B01J,F01N,Y02T,Y10T

Abstract:
1. A method for manufacturing a particulate matter purifying device in which a catalyst element is carried on a porous filter substrate through which an exhaust gas passes, for trapping particulate matter contained in the exhaust gas, and oxidizing and removing the trapped particulate matter, comprising: dipping the filter substrate into a solution of lipophilic group to adsorb the lipophilic group thereto; thereafter coating the filter substrate to which the lipophilic group is being adsorbed, with active oxygen producing fine particles; and thereafter carrying the catalyst element including an oxidation catalyst on the active oxygen producing fine particles, wherein the particulate matter purifying device manufactured in the method comprises the filter substrate, an active oxygen producing fine particulate layer including the active oxygen producing fine particles, and a catalyst carrying layer including the catalyst element, and wherein the filter substrate, the active oxygen producing fine particulate layer, and the catalyst carrying layer are discrete from each other.