Filters with controlled submicron porosity
US8298311B2 · kind B2 · utility
8Cited by
40References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 15, 2006 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Jul 1, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24149
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Porous ceramic honeycomb bodies and methods of making them, wherein the ceramic body has a total porosity (% P) defined by a median pore size (d50) greater than or equal to 10 microns; a pore size distribution d-factor less than 0.8, wherein d-factor=(d50−d10)/d50, and a submicron pore fraction characterized by less than 5% of the total porosity being comprised of pores having a pore diameter less than 1.0 micron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.