Patent ID: 7776787
Filing Date: 2010-08-17
Classification: B01D,B01J,Y02T

Abstract:
1. A method for manufacturing an exhaust gas purifying catalyst having coating areas of different precious metal densities, the method comprising the steps of: forming a partitioning recess lengthwise at a lower end of a carrier along a border of coating areas; providing a coating liquid container in which first and second coating liquids of different densities can be contained so as not to be mixed with each other by a partitioning wall partitioning the interior of the container, wherein a density of the first coating liquid inside the partitioning wall is higher than that of the second coating liquid outside the partitioning wall; inserting the partitioning wall into the partitioning recess so that a carrier can be installed in the coating container with the end side of the carrier in contact with the coating liquids; and coating a plurality of coating areas by providing a suction pressure from the upper side of the carrier and coating the coating areas of the carrier with the coating liquids of different densities which are contained in the coating liquid container.