Surface-finishing on the basis of cross-linkable, saturated polyester resins and fluoropolymers

US10745580B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Uwe Numrich · Weiterstadt, DE
• Thorsten Brand · Marl, DE
• Andreas Schubert
• Thomas Mohr · Babenhausen, DE
• Denis Pukrop · Dülmen, DE

Key dates

• Filing date: Aug 18, 2015
• Grant date: Aug 18, 2020
• Expiry date: Feb 7, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D127/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A formulation for the coating of substrates, the formulation including 5 to 70 wt % of hydroxy-functional fluoropolymers, 5 to 70 wt % of polyesters based on dicarboxylic or polycarboxylic acids or derivatives thereof and on aliphatic or cycloaliphatic diols or polyols, the polyester including at least one aliphatic or cycloaliphatic dicarboxylic acid or polycarboxylic acid or derivatives thereof, 2 to 25 wt % of crosslinkers, 0.01 to 2 wt % of crosslinking catalysts, up to 20 wt % of UV absorbers and up to 10 wt % of UV stabilizers.