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公开(公告)号：AT441738T
公开(公告)日：2009-09-15
申请号：AT06777316
申请日：2006-06-13
Applicant: BASF SE
Inventor： WITTELER HELMUT , BERTKAU WALTER , HEIDENFELDER THOMAS , GITHLICH ALEXANDER
IPC: C23C22/53 , C08L33/14 , C09D133/14 , C23C22/56
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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