Invention Grant
US08986467B2 Method for passivating metallic surfaces with aqueous compositions comprising surfactants
有权
用包含表面活性剂的含水组合物钝化金属表面的方法
- Patent Title: Method for passivating metallic surfaces with aqueous compositions comprising surfactants
- Patent Title (中): 用包含表面活性剂的含水组合物钝化金属表面的方法
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Application No.: US13252496Application Date: 2011-10-04
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Publication No.: US08986467B2Publication Date: 2015-03-24
- Inventor: Guido Vandermeulen , Achim Fessenbecker , Bernd Laubusch , Helmut Witteler , Jürgen Tropsch
- Applicant: Guido Vandermeulen , Achim Fessenbecker , Bernd Laubusch , Helmut Witteler , Jürgen Tropsch
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: C23C22/48
- IPC: C23C22/48 ; C09D5/12 ; C23C22/12 ; C23C22/00
Abstract:
A method for passivating metallic surfaces, wherein the surface is contacted with an aqueous composition comprising at least one water-soluble polymer (X) comprising acidic groups and with at least one surfactant (T) based on alkoxylated alcohols, the pH of the composition being in the range from 0.5 to 5, enables durable protection of the surface.
Public/Granted literature
- US20120080121A1 METHOD FOR PASSIVATING METALLIC SURFACES WITH AQUEOUS COMPOSITIONS COMPRISING SURFACTANTS Public/Granted day:2012-04-05
Information query
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