Verfahren zur Herstellung einer Dicarbonsäureverbindung und Verfahren zur Herstellung von Recycelten Harzen

Details

Veröffentlichungs-Nr.

EP4741371

Anmeldetag

2. Juli 2024

Veröffentlichung

9. Januar 2025

Rechtsraum

EP

Abstract

The present invention addresses the problem of efficiently recycling waste resin compositions such as synthetic resins, enabling the reuse of a wider variety of resins than before. The problem is solved by a method for producing a dicarboxylic acid compound, said method including a crystallization step for crystallizing at least the dicarboxylic acid compound from a mixed liquid containing a dicarboxylic acid compound represented by general formula (1-1) or general formula (1-2) and a dihydroxy compound represented by general formula (2-1) or general formula (2-2). The substituents and the like in the general formulas are as described in the description of the present application.

Anmelder

Firma

MITSUBISHI GAS CHEMICAL COMPANY, INC.

Land

🇯🇵 Japan