Honeycomb filter
US10821420B2 · kind B2 · utility
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30References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 5, 2018 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Mar 5, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/5436
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a honeycomb filter for collecting fine particles that includes a wall portion formed from a base material containing ceria-zirconia composite oxide and an inorganic binder. In a pore diameter distribution in which a pore diameter and a log differential pore volume measured through mercury porosimetry are respectively represented by a horizontal axis and a vertical axis, the wall portion has a peak in a range in which the pore diameter is greater than or equal to 0.01 μm and less than 1 μm and a peak in a range in which the pore diameter is greater than or equal to 1 μm and less than or equal to 50 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.