Primer coating agent system for plastic substrates

US11591479B2 · kind B2 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Audree Andersen · Havixbeck, DE
• Miao Wang · Kohlenbissen, DE
• Kai-Michael Wuennemann · Kohlenbissen, DE
• Julia Melzer · Hachenburg, DE
• Jens Lueckert · Kohlenbissen, DE
• Frederik Foelling · Munster, DE
• Peter Machaczek · Kohlenbissen, DE
• Igor Millbaier · Kohlenbissen, DE
• Marc Baeuerle · Kohlenbissen, DE
• Andreas Janssen · Kohlenbissen, DE
• Tanja Bricke · Kohlenbissen, DE
• Tobias Wolf · Kohlenbissen, DE
• Thomas Focke · Kohlenbissen, DE

Key dates

• Filing date: Oct 23, 2018
• Grant date: Feb 28, 2023
• Expiry date: Nov 6, 2039

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K5/541
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present disclosure relates to a primer coating material composition, obtainable by combining at least two components (A) and (B) of a coating material system, which are different from one another and present separately from one another, with component (B) being nonaqueous and including at least one polyisocyanate having more than two free isocyanate groups, at least one organic solvent, and, further, at least one Si-containing compound which contains at least one hydrolyzable radical and at least one non-hydrolyzable organic radical, for at least partial application to at least one optionally pretreated surface of a plastics substrate, to a method for producing a corresponding coating on such a substrate, and to a method for at least partially coating at least one surface of a plastics substrate with a multicoat paint system.