公开(公告)号：US20250051513A1

公开(公告)日：2025-02-13

申请号：US18720701

申请日：2022-11-25

Applicant: KOLON INDUSTRIES, INC.

Inventor： Ho Sub KIM ,  Young Sung SUH ,  No Woo PARK ,  Choong Hee HONG ,  Kyung Gyu NOH ,  Ki Hyun PARK

IPC: C08G63/676 ,  C08G63/80 ,  C08K5/00 ,  C08K5/5333

Abstract: The present invention relates to a polyester resin and a preparation method therefor. Specifically, provided, in an embodiment of the present invention, is a polyester resin including: a copolymer including a diacid moiety and a diol moiety; a phosphorus-based heat stabilizer; and a complementary colorant, wherein the diacid moiety includes a furandicarboxylic acid-based compound-derived moiety, the diol moiety includes an alkylene glycol-based compound-derived moiety, the phosphorus-based heat stabilizer includes an ester group at the terminal end thereof, and the complementary colorant includes a blue dye and a red dye.

公开(公告)号：US20230348666A1

公开(公告)日：2023-11-02

申请号：US18245388

申请日：2021-09-13

Applicant: KOLON INDUSTRIES, INC.

Inventor： Ho Sub KIM ,  Kyung Gyu NOH ,  Young Sung SUH ,  Choong Hee HONG ,  Ki Hyun PARK ,  No Woo PARK

IPC: C08G63/85 ,  C08G63/676

CPC classification number: C08G63/85 ,  C08G63/676

Abstract: The present invention provides a novel catalyst material used to produce polyester having improved molecular weight and color from a dicarboxylic acid aromatic heterocyclic compound or a derivative thereof.

公开(公告)号：US20250136566A1

公开(公告)日：2025-05-01

申请号：US18722810

申请日：2022-12-23

Applicant: KOLON INDUSTRIES, INC.

Inventor： Mee Hye JEONG ,  Jun Yeong KIM ,  Da Kyoung YONG ,  Ji Min HA ,  Mi SHIN ,  No Woo PARK ,  Choong hee HONG ,  Ki Hyun PARK

IPC: C07D307/68 ,  C08G63/181

Abstract: The present invention relates to a method for preparing a furan dicarboxylic acid compound, which includes preparing a hydroxyl furfural compound from a hydroxyl-free furfural compound; and preparing a furan dicarboxylic acid compound by an oxidation reaction of the hydroxyl furfural compound in the presence of a heterogeneous catalyst.

公开(公告)号：US20230348664A1

公开(公告)日：2023-11-02

申请号：US18245403

申请日：2021-09-01

Applicant: KOLON INDUSTRIES, INC.

Inventor： Young Sung SUH ,  No Woo PARK ,  Ho Sub KIM ,  Choong Hee HONG ,  Kyung Gyu NOH ,  Ki Hyun PARK

IPC: C08G63/672

CPC classification number: C08G63/672

Abstract: The present invention provides a polyester polymer having improved heat discoloration and at the same time, having a high molecular weight.