| 发明名称 |
Preparation of calcium fluoride for optical item, especially lens involves adding aqueous solution of calcium salt and/or aqueous solution containing fluoride ions to solution containing an acid(s) that is free of fluoride |
| 摘要 |
<p>Calcium fluoride is prepared by adding an aqueous solution of calcium salt and aqueous solution containing fluoride ions to a solution containing an acid that is free of fluoride.</p> |
| 申请公布号 |
DE10309611(A1) |
申请公布日期 |
2004.09.16 |
| 申请号 |
DE2003109611 |
申请日期 |
2003.02.28 |
| 申请人 |
HONEYWELL SPECIALTY CHEMICALS |
发明人 |
SCHOLTEN THOMAS;HEUDUK HARALD;THEISSEN MICHAEL |
| 分类号 |
C01F11/22;G02B1/02;(IPC1-7):C01F11/22 |
主分类号 |
C01F11/22 |
| 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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