The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 31, 2017
Filed:
Feb. 07, 2013
Chemetall Gmbh, Frankfurt am Main, DE;
Daniel Wasserfallen, Mainz, DE;
Michael Schwamb, Frankfurt, DE;
Aliaksandr Frenkel, Frankfurt, DE;
Vera Sotke, Frankfurt am Main, DE;
Wolfgang Bremser, Paderborn, DE;
Martin Droll, Schlangen, DE;
Oliver Seewald, Marsberg, DE;
Ron Eilinghoff, Frankfurt, DE;
Stephanie Gerold, Paderborn, DE;
Evgenija Niesen, Soest, DE;
Lars Schachtsiek, Paderborn, DE;
Manuel Traut, Hamm, DE;
Chemetall GmbH, , DE;
Abstract
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.