Verfahren zur Trennung von Klebstoff und Basismaterial

Details

Veröffentlichungs-Nr.

EP4775370

Anmeldetag

21. August 2024

Veröffentlichung

13. März 2025

Rechtsraum

EP

IPC

B29B17/00

Abstract

Provided is a method for easily sorting, from a mixture including a pressure-sensitive adhesive and a substrate, the pressure-sensitive adhesive and the substrate.The method according to the embodiment of the present invention for sorting a pressure-sensitive adhesive and a substrate is a method for sorting, from a mixture (A) including a pressure-sensitive adhesive, a substrate, and a first organic solvent, the pressure-sensitive adhesive and the substrate, and at least one operation selected from the group consisting of (i), (ii), and (iii) below is performed: (i) an operation of stirring the mixture (A) in a saturated aqueous solution of the first organic solvent; (ii) an operation of stirring the mixture (A) in a water-containing liquid mixture containing at least one selected from the group consisting of a second organic solvent and a third organic solvent in an amount exceeding a saturation solubility thereof; and (iii) an operation of, after immersion of the mixture (A) in the third organic solvent, recovering a mixture (B) obtained by the immersion and stirring the mixture (B) in water.

Anmelder

Firma

Nitto Denko Corporation

Land

🇯🇵 Japan

Fachgebiete