Honeycomb unit and honeycomb structure

Details Honeycomb unit and honeycomb structure Honeycomb unit and honeycomb structure

2007-10-29

2008-12-09

Griffin, Walter D (Department: 1797)

Gas separation

Specific media material

Ceramic or sintered

C055S502000, C055S385300, C055S524000, C055S522000, C055S422000, C055S483000

Reexamination Certificate

active

07462216

ABSTRACT:
A honeycomb unit includes a plurality of walls and a plurality of cells. The plurality of cells are defined by the plurality of walls and extend along a longitudinal direction of the honeycomb unit. Each of the plurality of cells has opposite first and second end portions along the longitudinal direction. Either one of the first and second end portions is sealed. X and Y satisfy a following relationship, 100/3·X+5≦Y≦100/3·X+40, wherein Y is a ratio of a weight of an unsealed region in said cells to a weight of a sealed region in said cells and X is a ratio of a length in the longitudinal direction of said honeycomb unit to an area of a cross-section perpendicular to the longitudinal direction of said honeycomb unit. X is at least about 0.1 and at most about 0.26.

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