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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.:

US 11505705 B1

PDFFull Text
Date of Patent:
Nov. 22, 2022

Filed:

Aug. 31, 2018

Method for coating metal surfaces of substrates and objects coated in accordance with said method

Applicant:

Chemetall Gmbh, Frankfurt am Main, DE;

Inventors:

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;

Assignee:

CHEMETALL GMBH, Franfurt am Main, DE;

Attorney:

Armstrong Teasdale LLP

Primary Examiner:

Karuna P Reddy

Int. Cl.
CPC ...
C09D 101/00 (2006.01); C09D 103/00 (2006.01); C09D 103/12 (2006.01); C08G 71/04 (2006.01); C08G 73/00 (2006.01); C09D 5/08 (2006.01); B05D 7/14 (2006.01); B05D 1/18 (2006.01); C25D 13/04 (2006.01); C25D 13/16 (2006.01); B05D 3/02 (2006.01);
U.S. Cl.
CPC ...
C09D 5/08 (2013.01); B05D 1/18 (2013.01); B05D 7/14 (2013.01); C09D 5/088 (2013.01); C25D 13/04 (2013.01); C25D 13/16 (2013.01); B05D 3/0254 (2013.01);
Abstract

The invention relates to a method for coating surfaces, to a corresponding coating, and to the use of the objects coated in accordance with said method. The invention relates to a method for coating metal surfaces of substrates, comprising or consisting of the following steps: I. providing a substrate having a cleaned metal surface, II. contacting and coating metal surfaces with an aqueous composition in the form of a dispersion and/or suspension, IX. optionally rinsing the organic coating, and X. drying and/or baking the organic coating or XI. optionally drying the organic coating and coating with a coating composition of the same type or a further coating composition before a drying process and/or baking process, wherein in step II the coating is performed with an aqueous composition in the form of a dispersion and/or suspension containing 2.5 to 45 wt % of at least one non-ionic stabilized binder and 0.1 to 2.0 wt % of a gelling agent, wherein the aqueous composition has a pH value in the range of 0.5 to 7 and forms, with the cations eluted from the metal surface in the pretreatment step and/or during the contacting in step II, a coating based on an ionogenic gel.

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