Patent ID: 7645427
Filing Date: 2010-01-12
Classification: B01D,B01J,F01N,Y02T,Y10S,Y10T

Abstract:
1. A honeycomb structure comprising: a plurality of through channels separated by porous partition walls and extending in an axial direction of the honeycomb structure, wherein all of said through channels have plugging portions, respectively that plug alternately at either one end of the honeycomb structure or its opposite end in a checkered flag pattern, and wherein at least one slit per through channel is formed only in the vicinity of the plugging portion of the partition walls surrounding the respective through channels, wherein a width of each slit is in a range from 0.2 to 1 mm, and a length of each slit is from 1 mm to a length which is the shorter of (a)30 mm and (b) ½ of a length of the honeycomb structure.