发明授权
- 专利标题： Alkaline zinc electroplating bath
- 专利标题（中）： 碱性锌电镀浴
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申请号： US41575773申请日： 1973-11-14
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公开(公告)号： US3915815A公开(公告)日： 1975-10-28
- 发明人: KOCH REINHARD
- 申请人： KOCH REINHARD
- 专利权人： Reinhard Koch
- 当前专利权人： Reinhard Koch
- 优先权： DE2256000 1972-11-15
- 主分类号： C25D3/24
- IPC分类号： C25D3/24
摘要：
The alkaline zinc electroplating bath of the present invention contains as brightening agent the reaction product of A. POLYETHYLENE IMINE OR POLYPROPYLENE IMINE WITH B. AN AROMATIC ALDEHYDE, C. AMMONIA AND/OR ETHYLENEDIAMINE, OR DIETHYLENE TRIAMINE AND D. EPICHLOROHYDRIN. Due to the addition of said reaction product its cyanide content can be considerably reduced without impairing the brightness of the zinc deposit.
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