Biodegradable and bioactive glass-ceramics, and method for fabricating the same
US7582310B2 · kind B2 · utility
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Key dates
| Filing date | Aug 27, 2003 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Apr 8, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C12/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Disclosed herein is a biodegradable and bioactive glass-ceramic fabricated by mixing a slowly biodegradable glass-ceramic and a highly biodegradable glass-ceramic in a predetermined mixing ratio wherein the bioactivity is maintained to be constant, and the biodegradation rate is controlled by the mixing ratio. The biodegradable and bioactive glass-ceramic is fabricated from a composition consisting of calcium oxide (CaO), silica (SiO2), boron oxide (B2O3), magnesium oxide (MgO), calcium fluoride (CaF2) and phosphorus pentoxide (P2O5).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.