EXHAUST GAS PURIFYING FILTER AND PRODUCTION METHOD THEREOF

Number of patents in Portfolio can not be more than 2000

United States of America

APP PUB NO 20200055039A1
SERIAL NO

16484681

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention provides an exhaust gas purifying filter capable of efficiently burning and removing particulates captured by a partition wall, and a production method thereof. This exhaust gas purifying filter (CSF) of the present invention includes at least a honeycomb substrate having a porous partition wall configured to capture particulates (PM) such as soot in exhaust gas, and a catalyst carried by the honeycomb substrate and configured to burn and remove the particulates captured by the partition wall of the honeycomb substrate and deposited within cells, wherein the catalyst is carried concentrically in a shallow portion from the surface of the cell wall on the exhaust gas inflow side of the honeycomb substrate, and 65% or more of the total mass of the catalyst is present in a depth region from the surface of the cell wall of the honeycomb substrate up to 2/10 a with reference to the wall thickness a of the partition wall.

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Patent Owner(s)

Patent OwnerAddress
N E CHEMCAT CORPORATION4-1 HAMAMATSU-CHO 2-CHOME MINATO-KU TOKYO 105-6124

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ANDO, Ryuji Minato-ku, JP 19 400
KAYADA, Yuto Minato-ku, JP 3 0

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