Plugging material for aluminum titanate ceramic wall flow filter manufacture
US7744669B2 · kind B2 · utility
8Cited by
14References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2006 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Oct 29, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/5436
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are plugging mixtures for a ceramic wall flow filter, comprising an aluminum titanate precursor reactive batch composition including an alumina source, a silica source, and a titania source; a sintering aid; an organic binder; and a liquid vehicle. Also disclosed are ceramic wall flow filters comprised of end plugs formed from the plugging mixtures of the present invention and methods for the manufacture thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.