公开(公告)号：US20240425666A1

公开(公告)日：2024-12-26

申请号：US18290852

申请日：2023-07-04

Applicant: LG CHEM, LTD.

Inventor： Do Dam KIM ,  Sang Ho LEE ,  Jue Hyung KANG ,  Jun Sik KIM ,  Jong Suh PARK ,  Hyun Taek OH

IPC: C08J11/26

Abstract: Provided is a method for preparing a recycled ABS resin including: preparing an extrusion feed including an acrylonitrile butadiene styrene (ABS) base resin including polyurethane and a metal carboxylic acid salt or a hydrate of the metal carboxylic acid salt, and supplying the extrusion feed to an extruder to perform a depolymerization reaction of the polyurethane and extrude the extrusion feed, wherein a master index (M) value satisfies 0.2≤M≤0.6.