公开(公告)号：US20230383089A1

公开(公告)日：2023-11-30

申请号：US18031860

申请日：2022-07-14

Applicant: LG CHEM, LTD.

Inventor： Ki Jae LEE ,  Eunju PARK ,  Jungmoon BAE ,  Jeongbin LEE ,  Joong Jin HAN ,  Mooho HONG

IPC: C08J11/24 ,  C08G64/16

CPC classification number: C08J11/24 ,  C08G64/16 ,  C08J2369/00

Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same. Also, the present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a by-product with a high added value recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.

公开(公告)号：US20230383090A1

公开(公告)日：2023-11-30

申请号：US18031863

申请日：2022-07-14

Applicant: LG CHEM, LTD.

Inventor： Jeongbin LEE ,  Eunju PARK ,  Ki Jae LEE ,  Jungmoon BAE ,  Joong Jin HAN ,  Mooho HONG

IPC: C08J11/24 ,  C08J11/16 ,  C08L69/00 ,  C08G64/06 ,  C07C37/01 ,  C07C37/82 ,  C07C37/68

CPC classification number: C08J11/24 ,  C08J11/16 ,  C08L69/00 ,  C08G64/06 ,  C07C37/01 ,  C07C37/82 ,  C07C37/685 ,  C08L2207/20

Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic which contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic, and molded product using the same.

公开(公告)号：US20240002627A1

公开(公告)日：2024-01-04

申请号：US18038189

申请日：2022-07-14

Applicant: LG CHEM, LTD.

Inventor： Jeongbin LEE ,  Eunju PARK ,  Ki Jae LEE ,  Jungmoon BAE ,  Mooho HONG

IPC: C08J11/16 ,  C07C37/86

CPC classification number: C08J11/16 ,  C08J2369/00 ,  C07C37/86

Abstract: The present invention relates to a monomer composition for synthesizing recycled plastic, which comprises an aromatic diol compound, wherein a color coordinate b* is 0.1 to 1, wherein the aromatic diol compound yield is more than 75%, and wherein the monomer composition for synthesizing recycled plastic is recovered from a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.

公开(公告)号：US20250129003A1

公开(公告)日：2025-04-24

申请号：US18681405

申请日：2023-06-01

Applicant: LG CHEM, LTD.

Inventor： Jeongnam KIM ,  Jungmoon BAE ,  Ki Jae LEE ,  Jeongbin LEE ,  Jihwan HWANG ,  Mooho HONG

IPC: C07C37/00 ,  C07C37/055 ,  C07C37/84 ,  C07C37/86 ,  C08G64/00 ,  C08J11/16 ,  C08J11/24

Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic that can realize excellent color quality even though it is recovered through recycling by chemical decomposition of a polycarbonate-based resin, and allows improvement of efficiency in the recovery process, a preparation method thereof, and a recycled plastic and a molded product using the same.

公开(公告)号：US20230374251A1

公开(公告)日：2023-11-23

申请号：US18032117

申请日：2022-07-14

Applicant: LG CHEM, LTD.

Inventor： Eunju PARK ,  Ki Jae LEE ,  Jungmoon BAE ,  Jeongbin LEE ,  Mooho HONG

IPC: C08J11/24 ,  C07C37/52

CPC classification number: C08J11/24 ,  C07C37/52 ,  C08J2369/00

Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.

公开(公告)号：US20230391702A1

公开(公告)日：2023-12-07

申请号：US18032327

申请日：2022-07-14

Applicant: LG CHEM, LTD.

Inventor： Eunju PARK ,  Ki Jae LEE ,  Jungmoon BAE ,  Jeongbin LEE ,  Joong Jin HAN ,  Mooho HONG

IPC: C07C39/16 ,  C07C37/055 ,  C07C37/68 ,  C07C37/80 ,  C08J11/16 ,  C08J11/24 ,  C08L69/00

CPC classification number: C07C39/16 ,  C07C37/0555 ,  C07C37/685 ,  C07C37/80 ,  C08J11/16 ,  C08J11/24 ,  C08L69/00 ,  C08J2369/00 ,  C08L2207/20

Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.

公开(公告)号：US20230382837A1

公开(公告)日：2023-11-30

申请号：US18032141

申请日：2022-07-14

Applicant: LG CHEM, LTD.

Inventor： Jungmoon BAE ,  Eunju PARK ,  Ki Jae LEE ,  Jeongbin LEE ,  Joong Jin HAN ,  Mooho HONG

IPC: C07C39/16 ,  C07C37/055 ,  C08J11/16 ,  C08J11/24 ,  C07C37/68 ,  C07C37/82 ,  C08L69/00

CPC classification number: C07C39/16 ,  C07C37/0555 ,  C08J11/16 ,  C08J11/24 ,  C07C37/685 ,  C07C37/82 ,  C08L69/00 ,  C08J2369/00 ,  C08L2207/20

Abstract: The present disclosure relates to a monomer composition for synthesizing recycled plastic that contains a high-purity aromatic diol compound recovered through recycling by chemical decomposition of a polycarbonate-based resin, a method for preparing the same, and a recycled plastic and molded product using the same.

公开(公告)号：US20210238355A1

公开(公告)日：2021-08-05

申请号：US17049265

申请日：2019-07-04

Applicant: LG CHEM, LTD.

Inventor： Jeongbin LEE ,  Joong Jin HAN ,  Eunju PARK ,  Sanghwan JO

IPC: C08G75/0281 ,  C08G75/0254 ,  C08G75/0236

Abstract: The present disclosure relates to a preparation method of a polyarylene sulfide, and this method may produce a polyarylene sulfide having properties equal to or higher than those of the conventional method with a high molecular weight at a high yield by optimizing the content and molar ratio of an amide-based compound in a polymerization step.