Method for the cleaning and/or anti-corrosion pretreatment of a plurality of components comprising zinc-coated (ZM) steel

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12234561
APP PUB NO 20240263315A1
SERIAL NO

18602395

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Abstract

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The present invention relates to a method for the cleaning and/or anti-corrosion pretreatment of a plurality of components in series, in which the components of the series are at least partially composed of zinc-coated (ZM) steel. After a cleaning stage and before further cleaning and/or anti-corrosion pretreatment, the components pass through a treatment stage for improving the wettability of the zinc-coated (ZM) steel surfaces in which at least the surfaces of the zinc-coated (ZM) steel of the components are brought into contact with an aqueous medium which contains at least one builder which is a salt of a Lewis acid-base pair in which the Lewis acid is selected from Li+, Na+, K+, Ca2+, Mg2+ or Al3+, and the Lewis base is selected from anions of a polyprotic Brønsted acid.

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Patent Owner(s)

  • HENKEL AG & CO. KGAA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kolt, Christian Duesseldorf, DE 2 0
Posner, Ralf Dormagen, DE 10 1
Schmidt, Silvia Hilden, DE 2 0
Wapner, Kristof Duesseldorf, DE 15 5

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