Self-foamed porous ceramic composition and method for making porous ceramic using the same
US7169721B2 · kind B2 · utility
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Key dates
| Filing date | Aug 27, 2003 |
| Grant date | Jan 30, 2007 |
| Priority date | — |
| Expiry date | Jan 24, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C11/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed herein are a self-foamed porous ceramic composition and a method for making a porous ceramic using the self-foamed porous ceramic composition. The self-foamed porous ceramic is obtained by fabricating a glass consisting of 41˜47 mole % of calcium oxide (CaO), 41˜47 mole % of silica (SiO2) and 6˜18 mole % of borate (B2O3), pulverizing the glass into a finely-divided glass powder having an average particle size of 1˜10 μm, molding the glass powder, and sintering the molded glass powder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.