Honeycomb filter and method of manufacturing the same

Details Honeycomb filter and method of manufacturing the same Honeycomb filter and method of manufacturing the same

2005-09-21

2009-02-10

Greene, Jason M (Department: 1797)

Gas separation

Specific media material

Ceramic or sintered

C055S282200, C055S282300, C055S385300, C055S524000, C055SDIG007, C055SDIG010, C055SDIG030, C095S273000, C060S311000, C264S628000, C264S630000, C264S631000, C264SDIG048, C428S116000

Reexamination Certificate

active

07488367

ABSTRACT:
A honeycomb filter includes partition walls forming a plurality of cells extending in one direction, and plugging sections alternately plugging the cells at the ends of the honeycomb filter, the partition walls being formed of a porous base material having a porosity of 45 to 70%. When the average pore size of the base material measured by mercury porosimetry is (A) μm and the average pore size of the base material measured by a bubble point method is (B) μm, the average pore size differential rate expressed by “{(A−B)/B}*100” is 35% or less, and the maximum pore size of the base material measured by the bubble point method is 150 μm or less.

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