Patent ID: 8889242
Filing Date: 2014-11-18
Classification: B01D,B01J,C04B,F01N,Y02T,Y10T

Abstract:
1. A honeycomb structure comprising: a plurality of honeycomb fired bodies each having cell walls extending along a longitudinal direction of the honeycomb structure to define cells; and an adhesive layer provided between the honeycomb fired bodies to connect the honeycomb fired bodies and including a first adhesive layer and a second adhesive layer, wherein the honeycomb fired bodies consist of center-portion honeycomb fired bodies and periphery honeycomb fired bodies, the center-portion honeycomb fired bodies not forming a part of a periphery of a cross-section of the honeycomb structure perpendicular to the longitudinal direction, the periphery honeycomb fired bodies forming a part of a periphery of the cross-section, wherein the periphery honeycomb fired bodies include at least a single piece of a periphery small honeycomb fired body having in the cross-section a cross-sectional area which is less than about 60% of a cross-sectional area of a single piece of the center-portion honeycomb fired body, wherein the periphery small honeycomb fired body is bonded to a honeycomb fired body which is adjacent to the periphery small honeycomb fired body with the second adhesive layer to form a honeycomb bonded body, a cross-sectional area of the periphery honeycomb bonded body in the cross-section being about 60% or more of the cross-sectional area of a single piece of the center-portion honeycomb fired body, wherein all boundaries between each of the center-portion honeycomb fired bodies are bonded with the first adhesive layer, wherein the second adhesive layer has thermal conductivity higher than thermal conductivity of the first adhesive layer, and the second adhesive layer has Young's modulus higher than Young's modulus of the first adhesive layer, and wherein the center-portion honeycomb fired bodies include all honeycomb fired bodies of the honeycomb structure that do not contact an outer periphery of the honeycomb structure.