发明授权
- 专利标题： Corrosion inhibition of iron and its alloys
- 专利标题（中）： 铁及其合金的腐蚀抑制
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申请号： US158808申请日： 1988-02-22
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公开(公告)号： US4781992A公开(公告)日： 1988-11-01
- 发明人: Henry J. Gysling , Joseph S. Yudelson
- 申请人： Henry J. Gysling , Joseph S. Yudelson
- 申请人地址： NY Rochester
- 专利权人： Eastman Kodak Company
- 当前专利权人： Eastman Kodak Company
- 当前专利权人地址： NY Rochester
- 主分类号： C23F11/167
- IPC分类号： C23F11/167 ; G11B5/712 ; B05D5/12
摘要：
For use in magnetic recording tapes and for other purposes, iron and iron alloy materials are passivated and protected against oxidative corrosion by treatment with a solution of a non-hygroscopic salt of bis(triphenylphosphoranylidene) ammonium cation with an anion such as nitrite or chromate.
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