Ceramic articles having a nonporous core and porous outer layer
US4605594A · kind A · utility
20Cited by
17References
51Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1984 |
| Grant date | Aug 12, 1986 |
| Priority date | — |
| Expiry date | Aug 8, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Fired ceramic article, which exhibits a uniform, porous sheath and a core. The porous sheath or outer layer of the article can be filled with various infiltrates, e.g., catalysts, in order to provide the article with useful properties. The article can be prepared by treating a fired ceramic article with a leachant, e.g., hydrofluoric acid or a precursor thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.