Process for the synthesis of polycarbonates from cyclic monothiocarbonates

US12365760B2 · kind B2 · utility

Assignee

• BASF SE

Inventors

• Peter Rudolf · Ludwigshafen, DE
• Indre Thiel · Ludwigshafen am Rhein, DE
• Thomas Maximilian Wurm · Heidelberg, DE

Key dates

• Filing date: May 11, 2020
• Grant date: Jul 22, 2025
• Expiry date: Nov 22, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G64/1641
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process can be used for the synthesis of compounds containing at least one non-cyclic carbonate group, wherein a compound A) containing at least one five-membered cyclic monothiocarbonate group is reacted with at least one hydroxy group of a compound B) or of compound A) itself.