Coating agents having high scratch resistance and weathering stability

US8569438B2 · kind B2 · utility

Assignee

• BASF COATINGS GMBH · DE

Inventors

• Matthijs Groenewolt · Hachenburg, DE
• Andreas Poppe · Clüversborstel, DE
• Guenter Klein · Munster, DE
• Manuela Niemeier · Drensteinfurt, DE
• Elke Westhoff · Steinfurt, DE
• Wilfried STUEBBE · Greven, DE
• Simone Hesener · Munster, DE

Key dates

• Filing date: Dec 19, 2007
• Grant date: Oct 29, 2013
• Expiry date: Dec 6, 2029

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D175/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Disclosed are coating compositions comprising (a) at least one hydroxyl-containing compound (A), (b) at least one compound (B) having isocyanate groups, and (c) at least one catalyst (D) for the crosslinking of silane groups, said catalyst (D) comprising phosphorus. It is an aspect of the disclosed coating compositions that (i) one or more constituents of the coating composition contain hydrolyzable silane groups and (ii) the coating composition can be finally cured to a coating which has statistically distributed regions of an Si—O—Si network.