| 发明名称 |
Improving the surface of calcium carbonate - produced from living things eg mother of pearl or natural or cultured pearls |
| 摘要 |
Method comprises treating the surface with a F contg. soln. and forming a protective film of CaF2, strongly fixed, durable, mechanically hard and having opaline luster. |
| 申请公布号 |
DE2113132(A1) |
申请公布日期 |
1972.09.21 |
| 申请号 |
DE19712113132 |
申请日期 |
1971.03.18 |
| 申请人 |
MAESSENHAUSEN,WALTER H. VON,DIPL.-CHEM. |
发明人 |
VON,DIPL.-CHEM. MAESSENHAUSEN,WALTER H. |
| 分类号 |
B44F9/08;C04B41/50 |
主分类号 |
B44F9/08 |
| 代理机构 |
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代理人 |
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| 地址 |
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