Patent ID: 9074504
Filing Date: 2015-07-07
Classification: B01D,C04B,F01N,Y02T,Y10T

Abstract:
1. A ceramic honeycomb structure having a large number of flow paths partitioned by porous cell walls, said cell walls having porosity of 40-60%; pores opening on the cell wall surface having an opening area ratio (the total opening area of pores opening on the cell wall surface per a unit area) of 15% or more; when the opening diameter of each pore opening on the cell wall surface is expressed by an equivalent circle diameter (a diameter of a circle having the same area as the opening area of each pore), the median opening diameter of said opening pores being 10 μm or more and less than 40 μm; the density of pores having equivalent circle diameters of 10 μm or more and less than 40 μm being 350/mm the average circularity of pores having equivalent circle diameters of 10 μm or more and less than 40 μm being 1-2.