发明申请
- 专利标题： Trivalent chromate conversion coating
- 专利标题（中）： 三价铬酸盐转化涂层
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申请号： US10056530申请日： 2002-01-24
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公开(公告)号： US20030145909A1公开(公告)日： 2003-08-07
- 发明人: Leonard L. Diaddario, JR. , Michael Marzano
- 申请人： Pavco, Inc.
- 申请人地址： null
- 专利权人： Pavco, Inc.
- 当前专利权人： Pavco, Inc.
- 当前专利权人地址： null
- 主分类号： C23C022/34
- IPC分类号： C23C022/34
摘要：
In a preferred embodiment of the present invention, a conversion coating composition comprising chromium (III) ions, cobalt (II) ions, and nitric acid is provided. The coating composition is substantially free of chromium (VI) ions and substantially free of an oxidizing agent. The present trivalent chromium based conversion coating provides corrosion protection equal to or greater than most hexavalent chromium conversion coatings.
公开/授权文献
- US07029541B2 Trivalent chromate conversion coating 公开/授权日：2006-04-18