Patent ID: 8685885
Filing Date: 2014-04-01
Classification: B01D,C04B,Y10T

Abstract:
1. A honeycomb structure comprising: a ceramic block comprising: a sealing material layer provided on a peripheral face of the ceramic block, wherein the plurality of quadrangular-cross-section units include a first quadrangular-cross-section unit and a second quadrangular-cross-section unit, the concave portion includes a first side surface of the first quadrangular-cross-section unit and a second side surface of the second quadrangular-cross-section unit, the first side surface and a fourth side surface of the at least one triangular-cross-section unit contact each other with the adhesive layer interposed between the first side surface and the fourth side surface, the second side surface and a fifth side surface of the at least one triangular-cross-section unit contact each other with the adhesive layer interposed between the second side surface and the fifth side surface, and a sixth side surface of the at least one triangular-cross-section unit does not contact any of side surfaces of the quadrangular-cross-section unit, wherein a seventh side surface of the at least one trapezoidal-cross-section unit including the inclined line forms the peripheral face of the ceramic block, wherein an eighth side surface of the at least one trapezoidal-cross-section unit including the second side contacts the at least one triangular-cross-section unit with the adhesive layer interposed between the eighth side surface and the at least one triangular-cross-section unit, wherein the honeycomb structure has a shape of a circle, a rounded rectangle, an ellipse, or a triangle whose apexes have a curved shape in the cross-section perpendicular to the longitudinal direction, and wherein a shape of the ceramic block is a polygonal pillar.