Honeycomb structure and exhaust gas purifying device

Details Honeycomb structure and exhaust gas purifying device Honeycomb structure and exhaust gas purifying device

2007-02-21

2010-06-08

Hailey, Patricia L (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Nitrogen compound containing

C502S302000, C502S325000, C502S439000, C502S527190, C055S385300, C055S523000, C055S524000, C060S299000, C060S302000, C428S116000, C428S117000, C422S168000, C422S177000, C422S180000

Reexamination Certificate

active

07732366

ABSTRACT:
A honeycomb structure comprises a porous ceramic which is composed of several cells aligned across a cell wall longitudinally. The cell has either one end sealed. The gas permeability coefficient k of the cell wall is between about 0.5 μm2and about 1.5 μm2.

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