Quick-drying, energy-elastic, scratch-resistant and stable coating compounds

US10604675B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Harald Schaefer · Ludwigshafen, DE
• David Tuerp · Mannheim, DE
• Oliver Neu · Frankenthal (Pfalz), DE
• Rainer Erhardt · Shanghai, CN
• Daniel Flojhar · Ludwigshafen, DE
• Thorsten PAUEN · Ludwigshafen, DE
• Angelika Maria Steinbrecher · Stuttgart, DE
• Monika Haberecht · Ludwigshafen, DE

Key dates

• Filing date: Mar 2, 2015
• Grant date: Mar 31, 2020
• Expiry date: May 30, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/792
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to fast-drying, hard-elastic, scratch-resistant, and robust two-component polyurethane coating compositions, to their use, and to coating methods. Synthesis components in the coating compositions comprise polyisocyanate, hydroxyl-containing poly(meth)acrylate polyol, and certain branched polyester polyols, obtainable by polycondensation of hexahydrophthalic anhydride, trimethylolpropane, and optionally further components.