Porous articles and method for the manufacture thereof
US6773825B2 · kind B2 · utility
25Cited by
50References
10Claims
0Family size
Assignee
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Key dates
| Filing date | May 23, 2003 |
| Grant date | Aug 10, 2004 |
| Priority date | — |
| Expiry date | May 23, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An improved porous article and a method for forming such porous article are provided. A mixture of ceramic or articles and pliable organic hollow spheres is prepared in a liquid typically as a suspension. The article is formed by pressing, slip casting, extruding or injection molding the mixture. The article is dried to remove the liquid, and then is fired so that the particles are bonded such as by sintering, and the organic spheres are eliminated, resulting in a strong porous article having uniformly spaced interconnected voids.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.