PILLAR-SHAPED HONEYCOMB STRUCTURE FILTER AND METHOD FOR MANUFACTURING SAME
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United States of America Patent
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Issued Date -
Oct 3, 2024
app pub date -
Mar 19, 2024
filing date -
Mar 30, 2023
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Abstract
A pillar-shaped honeycomb structure filter, comprising a plurality of first cells extending from an inlet side end surface to an outlet side end surface, opening on the inlet side end surface and having a sealing portion on the outlet side end surface; and a plurality of second cells extending from the inlet side end surface to the outlet side end surface, having a sealing portion on the inlet side end surface and opening on the outlet side end surface, the plurality of first cells and the plurality of second cells alternately arranged adjacent to each other with a porous partition wall interposed therebetween; wherein a porous film composed of a plurality of particles is formed on a surface of each of the first cells, and the interparticle distance for the plurality of particles at which a cumulative ratio is 90% (D90) is 12.0 μm or less.
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