Invention Grant
- Patent Title: Method for the passivation of metal surfaces with compositions comprising polymers with acid groups and waxes
- Patent Title (中): 用含有酸基团和蜡的聚合物的组合物钝化金属表面的方法
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Application No.: US11917290Application Date: 2006-06-13
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Publication No.: US07905964B2Publication Date: 2011-03-15
- Inventor: Helmut Witteler , Walter Bertkau , Thomas Heidenfelder , Alexander Göthlich
- Applicant: Helmut Witteler , Walter Bertkau , Thomas Heidenfelder , Alexander Göthlich
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Connolly Bove Lodge & Hutz LLP
- Priority: DE102005027568 20050614
- International Application: PCT/EP2006/063169 WO 20060613
- International Announcement: WO2006/134117 WO 20061221
- Main IPC: C23C22/48
- IPC: C23C22/48
Abstract:
Process for the passivation of metallic surfaces, in particular of strip metals, by treatment of the surface with an acidic, aqueous preparation which comprises at least one water-soluble acid group-containing polymer and at least one wax.
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