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1. (WO2013145317) HONEYCOMB FILTER AND PRODUCTION METHOD FOR HONEYCOMB FILTER

Pub. No.:    WO/2013/145317    International Application No.:    PCT/JP2012/058745
Publication Date: Fri Oct 04 01:59:59 CEST 2013 International Filing Date: Sat Mar 31 01:59:59 CEST 2012
IPC: B01D 39/20
B01D 46/00
C04B 41/85
C04B 41/87
F01N 3/021
Applicants: IBIDEN CO., LTD.
イビデン株式会社
JINBO Naoyuki
神保 直幸
ORITO Akinori
折戸 暁則
NAGATSU Yuichi
永津 佑一
Inventors: JINBO Naoyuki
神保 直幸
ORITO Akinori
折戸 暁則
NAGATSU Yuichi
永津 佑一
Title: HONEYCOMB FILTER AND PRODUCTION METHOD FOR HONEYCOMB FILTER
Abstract:
The purpose of the present invention is to provide a honeycomb filter that prevents depth filtration, and has both high trapping efficiency and low pressure loss. This honeycomb filter comprises: a ceramic honeycomb base material having a plurality of cells for causing fluid to flow therethrough aligned in the longitudinal direction and having cell walls therebetween, said base material having one end section thereof sealed on either the fluid inflow side or the fluid outflow side of the cells; and a filter layer formed on, among the surfaces of the cell walls, the surface of cell walls of cells having the end section on the fluid inflow side thereof open and the end section on the fluid outflow side thereof sealed. The honeycomb filter is characterized by the filter layer by: comprising a plurality of spherical ceramic particles and a crosslinking product that crosslinks between the spherical ceramic particles and bonds the spherical ceramic particles; and by being configured by a three-dimensional mesh structure comprising the spherical ceramic particles and the crosslinking product.