Aqueous fluoromodified polyurethane system for anti-graffiti and anti-soiling coatings

US7501472B2 · kind B2 · utility

Assignee

• CONSTRUCTION RESEARCH & TECHNOLOGY GMBH · DE

Inventors

• Norbert Steidl · Trostberg, DE
• Alois Maier · Waldkraiburg, DE
• Franz Wolfertstetter · Palling, DE
• Wolfgang Hiller · Hemsbach, DE
• Rupert Stadler · Mindelheim, DE

Key dates

• Filing date: Feb 26, 2003
• Grant date: Mar 10, 2009
• Expiry date: May 10, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G18/6659
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

An aqueous fluoromodified polyurethane system for one- or two-component anti-graffiti and anti-soiling coatings is prepared by (a) preparing a binder component based on an aqueous solution or dispersion of optionally hydroxy- and/or amino-functional oligourethanes and/or polyurethanes having fluorinated side chains, and, optionally, (b) subsequently reacting the binder component with a crosslinker.