Method for coating metallic surfaces of substrates, and objects coated according to said method

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United States of America Patent

PATENT NO 9556523
APP PUB NO 20150079277A1
SERIAL NO

14377048

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Abstract

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A method and composition for coating surfaces, a corresponding coating and the use of objects coated according to said method. A cleaned, metallic surface is contacted with an aqueous composition that is a dispersion or suspension, and drying and/or baking the organic coating or optionally, drying the organic coating and coating with an equivalent or additional coating composition prior to a drying and/or baking. The aqueous composition has a pH of 4 to 11 and contains an anionic polyelectrolyte in a quantity of 0.01 to 5.0 wt. % relative to the total mass of the composition, which may have a solids content of from 2 to 40 wt. %. The solids have an average particle size from 10 to 1000 nm. A coating forms on the basis of an ionogenic gel which binds cations released from the metallic surface that originate from a pretreatment stage or from the contacting.

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Patent Owner(s)

Patent OwnerAddress
CHEMETALL GMBHGERMANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bremser, Wolfgang Paderborn, DE 51 270
Droll, Martin Schlangen, DE 13 45
Eilinghoff, Ron Frankfurt, DE 11 26
Frenkel, Aliaksandr Frankfurt, DE 12 37
Gerold, Stephanie Paderborn, DE 10 26
Niesen, Evgenija Soest, DE 6 18
Schachtsiek, Lars Paderborn, DE 10 24
Schwamb, Michael Frankfurt, DE 17 86
Seewald, Oliver Marsberg, DE 13 46
Sotke, Vera Frankfurt am Main, DE 12 44
Traut, Manuel Hamm, DE 10 24
Wasserfallen, Daniel Mainz, DE 14 64

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