Patent ID: 8241725
Filing Date: 2012-08-14
Classification: B01D,B01J,C04B,Y10T

Abstract:
1. A honeycomb segment having a part of a whole shape constituting a honeycomb structure that is composed of a plurality of cells that extend from a first face of the honeycomb structure to a second face of the honeycomb structure, the segment comprising: inner partition walls that, at least in part, define each of the cells and contain a number of first pores therein, the first pores being configured to filter the exhaust gas; an outer circumferential wall containing a number of second pores therein and being provided so as to surround the inner partition walls; and a filling composition that is only disposed in and fills the second pores located on outer and inner surfaces of the outer circumferential wall and the second pores located in internal portions of the outer circumferential wall, wherein the filling composition contains particles of a particle size configured to penetrate an inside of the second pores of the outer circumferential wall and a binder configured to (1) bind the particles to the inside of the second pores of the outer circumferential wall and/or (2) bind the particles disposed inside the second pores of the outer circumferential wall to each other, there are no cells extending from the first face to the second face of the honeycomb structure that are completely formed by the outer circumferential wall, and the honeycomb segment is capable of forming the honeycomb structure by integrally bonding the honeycomb segment with a bonding material.