Patent attributes
There is provided a honeycomb structure 1 produced by bonding a plurality of honeycomb segments 12 into one piece via a bonding layer 8, each segment 12 having a number of through-holes 3 divided from each other by porous partition walls 2 and extending in the axial direction of the honeycomb segment. The bonding layer 8 comprises at least one cement layer 10 and at least one undercoat layer 9 present between the honeycomb segment 12 and the cement layer 10. There is provided a process for producing a honeycomb structure 1, wherein bonding the honeycomb segments 12 comprises applying at least one layer of an undercoat on each honeycomb segment 12, applying at least one layer of a cement, and bonding the honeycomb segments into one piece. The honeycomb structure has a high bonding strength and hardly gives defects such as cracks in bonded portion.
