Process for coating metallic surfaces of substrates and articles coated by this process

US11389823B2 · kind B2 · utility

Assignee

• CHEMETALL GMBH · DE

Inventors

• Wolfgang Bremser · Münster, DE
• Martin Droll · Schlangen, DE
• Oliver Seewald · Marsberg, DE
• Evgenija Niesen-Warkentin · Soest, DE
• Lars Schachtsiek · Paderborn, DE
• Manuel Traut · Hamm, DE
• Michael Schwamb · Frankfurt, DE
• Daniel Wasserfallen · Mainz, DE
• Vera Sotke · Schwalbach am Taunus, DE
• Aliaksandr Frenkel · Frankfurt, DE
• Ron Eilinghoff · Frankfurt, DE
• Stephanie Gerold · Paderborn, DE
• Nawel Souad Khelfallah · Frankfurt am Main, DE

Key dates

• Filing date: Feb 27, 2015
• Grant date: Jul 19, 2022
• Expiry date: Sep 8, 2036

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B05D2401/20
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

A method for coating metallic surfaces of substrates with surfaces of aqueous (coating) compositions in the form of a dispersion and/or a suspension containing at least one stabilized binder and a gelling agent, the cations having been dissolved out of the metallic surface of the substrate in a pretreatment stage and/or during the contacting. The invention further relates to such a coating based on an ionogenic gel, in which the coating is formed by a process further described herein.