Ceramic materials for 4-way and NOx adsorber and method for making same
US7932201B2 · kind B2 · utility
4Cited by
5References
19Claims
0Family size
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Key dates
| Filing date | Mar 23, 2010 |
| Grant date | Apr 26, 2011 |
| Priority date | — |
| Expiry date | Mar 23, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B2235/9607
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed are ceramic articles comprising a sintered phase ceramic composition containing, as expressed on a weight percent oxide basis: a(Al2TiO5)+b(ZrTiO4)+c(Y2O3)+d(YPO4) wherein “a, b, c, and d” represent weight fractions of each component such that (a+b+c+d)=1.00 and wherein 0.5<a≦0.95; 0≦b≦0.5, 0.0≦c≦0.10, and 0≦d≦0.5. Also disclosed are precursor batch compositions and methods for manufacturing the ceramic articles disclosed herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.