Binders containing secondary amine groups, based on cyclic ethers

US11667747B2 · kind B2 · utility

Assignee

• Covestro Intellectual Property GmbH & Co. KG · DE

Inventors

• Irene Cristina Latorre Martinez · Leverkusen, DE
• Dorota Greszta-Franz · Erkrath, DE
• Raul Pires · Cologne, DE
• Nusret Yuva · Wermelskirchen, DE
• Magdalena Fluegel · Cologne, DE
• Andreas Hecking · Langenfeld, DE
• Florian Golling · Düsseldorf, DE

Key dates

• Filing date: Mar 19, 2020
• Grant date: Jun 6, 2023
• Expiry date: Mar 19, 2040

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2150/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for producing polyaspartic ester compositions by reacting cyclic ethers bearing primary amino and/or primary aminoalkyl groups with fumaric and/or maleic esters, to the polyaspartic ester compositions thus obtainable, and to the use thereof in two-component coating compositions.