POLYURETHANE COATING COMPOSITION, MULTILAYER SURFACE COATINGS HAVING A MATT SURFACE PRODUCED THEREFROM AND PROCESSES FOR PRODUCING THE MULTILAYER SURFACE COATINGS

The invention relates to coating compositions based on organic solvents and comprising at least one hydroxyl-containing compound (A), at least one crosslinking agent (B) having groups reactive toward hydroxyl groups, and at least one silica gel based matting agent (M), wherein (i) the matting agent...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MELZER JULIA, WEIHER CHRISTIAN, GEBAUER BEATE, KRUMM HOLGER, JANSSEN ANDREAS
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to coating compositions based on organic solvents and comprising at least one hydroxyl-containing compound (A), at least one crosslinking agent (B) having groups reactive toward hydroxyl groups, and at least one silica gel based matting agent (M), wherein (i) the matting agent (M) is surface-modified with one or more waxes, and (ii) the coating composition further comprises at least one hydrophobic silica based rheological assistant (R). The present invention further provides multistage coating methods using these coating compositions, and also the use of the coating compositions as clearcoat or application of the coating method for automotive OEM finishing, for the finishing of parts for installation in or on automobiles, and for automotive refinishing.