Method for producing triarylorganoborates

US11760765B2 · kind B2 · utility

Assignee

• Covestro Intellectual Property GmbH & Co. KG · DE

Inventors

• Thomas Rölle · Leverkusen, DE
• Horst Berneth · Leverkusen, DE
• Dennis Hönel · Wichterich, DE
• Friedrich-Karl Bruder · Krefeld, DE
• Jürgen Kintrup · Leverkusen, DE

Key dates

• Filing date: Nov 18, 2020
• Grant date: Sep 19, 2023
• Expiry date: Jun 25, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C2601/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a process for preparing triaryl organoborates proceeding from organoboronic esters in the presence of an n-valent cation 1/n Kn+, comprising the anhydrous workup of the reaction mixture and the use of the triaryl organoborates obtained as co-initiator in photopolymer formulations, holographic media and holograms.