Invention Grant
- Patent Title: Two-stage method for the corrosion protection treatment of metal surfaces
- Patent Title (中): 金属表面防腐处理的两段方法
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Application No.: US13409824Application Date: 2012-03-01
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Publication No.: US09403188B2Publication Date: 2016-08-02
- Inventor: Christian Rosenkranz , Andreas Arnold , Klaus Lepa , Konstantinos Markou
- Applicant: Christian Rosenkranz , Andreas Arnold , Klaus Lepa , Konstantinos Markou
- Applicant Address: DE Düsseldorf
- Assignee: Henkel AG & Co. KGaA
- Current Assignee: Henkel AG & Co. KGaA
- Current Assignee Address: DE Düsseldorf
- Agent Mary K. Cameron
- Priority: DE102009029334 20090910
- Main IPC: B05D5/00
- IPC: B05D5/00 ; B05D3/10

Abstract:
The invention relates to an at least two-stage method for corrosion protection treatment of metal surfaces, wherein, in a first step (i), an organic coating comprising an aqueous phase (A) is applied to the metal surface and, in a following step (ii), the organic coating applied to the metal surface contacted with an acidic, aqueous composition (B) comprising at least one or more water-soluble compounds containing at least one atom selected from the elements Zr, Ti, Si, Hf, V and/or Ce and one or more water-soluble compounds that release copper ions. The invention further comprises a metal component that is at least partially made of steel, iron, zinc and/or aluminum and the alloys thereof and has been treated by the method according to the invention, and to the use thereof in automobile construction and in the construction industry and for producing household appliances and electronics housings.
Public/Granted literature
- US20120282404A1 TWO-STAGE METHOD FOR THE CORROSION PROTECTION TREATMENT OF METAL SURFACES Public/Granted day:2012-11-08
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