Method for passivating metallic surfaces with aqueous compositions comprising surfactants

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United States of America Patent

PATENT NO 8986467
APP PUB NO 20120080121A1
SERIAL NO

13252496

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
BASF SEGERMANY'S RHINE RIVER IN LUDWIGSHAFEN LUDWIGSHAFEN RHINELAND-PALATINATE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fessenbecker, Achim Waghäusel, DE 20 59
Laubusch, Bernd Bürstadt, DE 6 17
Tropsch, Jürgen Römerberg, DE 12 76
Vandermeulen, Guido Ilvesheim, DE 18 140
Witteler, Helmut Wachenheim, DE 82 516

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