发明名称 |
Chromium oxide powder having a reduced level of hexavalent chromium and a method of making the powder |
摘要 |
A refined chromium oxide powder having a reduced level of hexavalent chromium. The refined powder may be produced by acid and reduction washing or by heat treatment to reduce the hexavalent chromium to a biocompatible level. The powder is then packaged to limit oxidation and absorption of moisture.
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申请公布号 |
US2009162273(A1) |
申请公布日期 |
2009.06.25 |
申请号 |
US20070004769 |
申请日期 |
2007.12.21 |
申请人 |
HOWMEDICA OSTEONICS CORP. |
发明人 |
LAWRYNOWICZ DANIEL E.;ZENG HAITONG;ZHANG ZONGTAO |
分类号 |
C01G37/02 |
主分类号 |
C01G37/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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