发明授权
- 专利标题: Method for passivating a metallic surface with a basic composition
- 专利标题(中): 用碱性组合物钝化金属表面的方法
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申请号: US13252651申请日: 2011-10-04
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公开(公告)号: US09034473B2公开(公告)日: 2015-05-19
- 发明人: Achim Fessenbecker , Bernd Laubusch , Oihana Elizalde
- 申请人: Achim Fessenbecker , Bernd Laubusch , Oihana Elizalde
- 申请人地址: DE Ludwigshafen
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: DE Ludwigshafen
- 代理机构: Oblon, McClelland, Maier & Neustadt, L.L.P.
- 主分类号: B32B15/08
- IPC分类号: B32B15/08 ; C09D133/02 ; C08F220/06 ; C08L33/02
摘要:
A method for passivating a metallic surface, by treating the surface with a basic aqueous composition comprising one polymer comprising acidic groups, a cationic crosslinker and a volatile basic compound, allows a durable passivation of fragile metal surfaces.
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