发明名称 |
CATHODE FOR ELECTROCHEMICAL REGENERATION OF PERMANGANATE ETCHING SOLUTIONS |
摘要 |
In order to regenerate permanganate solutions being utilized for the etching and roughening of plastics surfaces electrolytic methods are known. Though relatively small quantaties of by-products are produced with these methods as compared to chemical regeneration methods, large quantaties of manganese dioxide are produced when printed circuit boards are treated. In order to avoid formation of manganese dioxide during the regeneration method a novel cathode 2 has been found which is provided with a porous, electrically nonconducting layer 7 on the cathode body 3 . The layer 7 preferably consists of a plastics material being resistant to acid and/or alkali. |
申请公布号 |
EP1287182(A1) |
申请公布日期 |
2003.03.05 |
申请号 |
EP20010945134 |
申请日期 |
2001.05.15 |
申请人 |
ATOTECH DEUTSCHLAND GMBH |
发明人 |
DE BOER, REINHARD;DUENNEBEIL, SEBASTIAN |
分类号 |
C25B11/03;C25B1/28;C25B11/04;H05K3/00;(IPC1-7):C25B1/28;C25F7/02 |
主分类号 |
C25B11/03 |
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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