Process for coating metallic surfaces with coating compositions containing particles of a layered double hydroxide

US9903037B2 · kind B2 · utility

Assignees

• CHEMETALL GMBH · DE
• Airbus Defence and Space GmbH · DE
• MANKIEWICZ GEBR. & CO. (GMBH & CO.KG) · DE
• UNIVERSIDADE DE AVEIRO · PT

Inventors

• Mario Ferreira · Lisbon, PT
• Mikhail Zheludkevich · Aveiro, PT
• Joáo Tedim · Aveiro, PT
• Valérie Gandubert · Frankfurt, DE
• Thomas Schmidt-Hansberg · Frankfurt, DE
• Theo Hack · Ehrenkirchen, DE
• Sonja Nixon · Birkenfeld, DE
• Dominik Raps · Seeheim-Jugenheim, DE
• Diana Kirsch · Buxtehude, DE
• Sven Schröder · Kassel, DE

Key dates

• Filing date: Apr 17, 2013
• Grant date: Feb 27, 2018
• Expiry date: Apr 17, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C23C2222/20
• WIPO field: Surface technology, coating
• WIPO sector: Chemistry

Abstract

Coating a metallic surface with at least one of a pretreatment composition prior to organic coating, with a passivation composition without intent for subsequent organic coating, with a pretreatment primer composition, with a primer composition, with a paint composition and with an electrocoating composition, wherein the coating composition includes particles on a base of at least one layered double hydroxide (LDH) phase characterized by the general formula [M2+(1±0.5)−x(M3+, M4+)x(OH)2±0.75]An−x/n.mH2O.