Patent ID: 6984253

Claim:
A honeycomb filter which comprises an integral structure of a plurality of honeycomb segments bonded by an adhesive, the honeycomb segment having numbers of through-holes which are surrounded by partition walls and extend in an axial direction of the segment, wherein a ratio of a thermal conductivity κ s of the honeycomb segment to a thermal conductivity κ a of the adhesive, κ s/κ a, is in a range of 5 to 300, a density ρ a of the adhesive is in a range of 0.1 to 4 g/cc and a heat capacity Ha per unit volume of the adhesive, represented by specific heat Cpa×density ρ a is in a range of 0.1×10 6 to 3×10 6 J/m 3 ·K.