Porous articles and method for the manufacture thereof
US6592787B2 · kind B2 · utility
89Cited by
45References
46Claims
0Family size
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Key dates
| Filing date | Mar 7, 2001 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Jul 28, 2021 |
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 metal particles 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.