Method for removing substrates provided with organic coatings

US10040955B2 · kind B2 · utility

Assignee

• CHEMETALL GMBH · DE

Inventors

• Ron Eilinghoff · Frankfurt, DE
• Michael Schwamb · Frankfurt, DE
• Daniel Wasserfallen · Mainz, DE
• Vera Sotke · Schwalbach am Taunus, DE
• Aliaksandr Frenkel · Frankfurt, DE
• Stephanie Gerold · Paderborn, DE
• 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

Key dates

• Filing date: Feb 3, 2015
• Grant date: Aug 7, 2018
• Expiry date: Feb 3, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23G1/26
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

The invention relates to a method for removing a substrate that is coated with an organic coated coating by means of ionogenic gel formation. In said method, a wet or dry organic coating that has not yet formed a film on the substrate is treated with an aqueous solution of a metal salt from main group I in the periodic table of the elements, a complexing agent and/or a basic compound having a pH value >10.