公开(公告)号：US20250002702A1

公开(公告)日：2025-01-02

申请号：US17917187

申请日：2022-02-25

Applicant: LG CHEM, LTD.

Inventor： Gun KO ,  Seonho KONG ,  Sun Mo SON

IPC: C08L25/12 ,  B29B9/12 ,  B29K25/00 ,  B29K67/00 ,  B29K105/00 ,  C08L67/02

Abstract: A composite resin composition is described for automobile interior products and an automobile interior product manufactured using the same. More particularly, the composite resin composition for automobile interior products includes optimized materials, thereby providing improved heat resistance and chemical resistance. Accordingly, the composite resin composition for automobile interior products can satisfy the balance between physical properties such as mechanical properties, fluidity, and light resistance and provide excellent product reliability and appearance.

公开(公告)号：US20250122330A1

公开(公告)日：2025-04-17

申请号：US18682106

申请日：2023-06-28

Applicant: LG CHEM, LTD.

Inventor： Seonho KONG ,  Gun KO ,  Sun Mo SON ,  Hyun Seok LEE

IPC: C08G63/183 ,  C08F220/32 ,  C08F279/06 ,  C08K7/14 ,  C08L67/02

Abstract: Disclosed are a thermoplastic resin composition and an automotive interior part manufactured using the same. More particularly, the thermoplastic resin composition according to the present disclosure includes different materials from existing thermoplastic resin compositions, thereby improving heat resistance and impact resistance, satisfying the physical property balance between mechanical properties and fluidity and providing excellent product reliability and appearance quality.

公开(公告)号：US20240199874A1

公开(公告)日：2024-06-20

申请号：US18286753

申请日：2022-12-29

Applicant: LG CHEM, LTD.

Inventor： Gun KO ,  Seonho KONG ,  Sun Mo SON

IPC: C08L67/02

CPC classification number: C08L67/02

Abstract: The present disclosure relates to a thermoplastic resin composition and a molded article manufactured using the same. The present disclosure has an effect of providing a thermoplastic resin composition having tensile strength, elongation, and flexural strength equal or superior to those of a conventional polyester composite material; having greatly improved impact strength, flexural modulus, and heat deflection temperature under high load; and thus being suitable for lightweight automotive parts requiring high rigidity, and a molded article manufactured using the thermoplastic resin composition.

公开(公告)号：US20250136806A1

公开(公告)日：2025-05-01

申请号：US18683475

申请日：2023-07-18

Applicant: LG CHEM, LTD.

Inventor： Hyun Seok LEE ,  Gun KO ,  Sun Mo SON ,  Seonho KONG

IPC: C08L67/02 ,  C08K5/3492 ,  C08K5/523 ,  C08K5/5313 ,  C08K7/14 ,  C08K13/04

Abstract: The present disclosure relates to a polyester resin composition, a method of preparing the same, and a molded article manufactured using the same. The polyester resin composition according to the present disclosure is prepared using specific raw materials, and thus has excellent physical property balance between mechanical properties, electrical properties, fluidity, and flame retardancy. In addition, the polyester resin composition may provide excellent product reliability, heat resistance, and appearance. Due to these advantages, the polyester resin composition may be used instead of a conventional halogen-based flame retardant-containing polyester material.

公开(公告)号：US20220098408A1

公开(公告)日：2022-03-31

申请号：US17425647

申请日：2020-12-04

Applicant: LG CHEM, LTD.

Inventor： Kwang Su RYU ,  Sang Wook NA ,  Sun Mo SON ,  Min Han KWAK

IPC: C08L77/06

Abstract: The present disclosure provides a thermoplastic molding composition having excellent chemical resistance and an automobile component including a molded article thereof.

公开(公告)号：US20240317991A1

公开(公告)日：2024-09-26

申请号：US18266371

申请日：2022-12-23

Applicant: LG CHEM, LTD.

Inventor： Gun KO ,  Seonho KONG ,  Sun Mo SON ,  Hyun Seok LEE

IPC: C08L67/02 ,  C08K7/14

CPC classification number: C08L67/02 ,  C08K7/14 ,  C08L2205/025 ,  C08L2207/20

Abstract: Provided is a polyester resin composition and a molded article manufactured using the same. The polyester resin composition can provide mechanical properties, particularly injection properties, similar to those of inexpensive PBT materials and satisfy both eco-friendliness and heat resistance. Due to these advantages, the polyester resin composition can be applied to a motor insulator part used inside a refrigerator that requires excellent dimensional stability, heat resistance, and injection properties.

公开(公告)号：US20240254329A1

公开(公告)日：2024-08-01

申请号：US18019558

申请日：2022-08-22

Applicant: LG CHEM, LTD.

Inventor： Seonho KONG ,  Gun KO ,  Sun Mo SON

IPC: C08L67/02

CPC classification number: C08L67/02 ,  C08L2205/025 ,  C08L2205/035

Abstract: Provided is a thermoplastic resin composition, a method of preparing the same, and a molded article including the same. The composition includes 35 to 50 wt % of a polybutylene terephthalate resin (A) having an intrinsic viscosity of 0.6 to 0.9 dl/g; 5 to 15 wt % of a polyethylene terephthalate homopolymer (B); 7 to 9 wt % of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (C) including 23 to 35 wt % of a vinyl cyanide compound; 7 to 12 wt % of an aromatic vinyl compound-vinyl cyanide compound copolymer (D) including 26 to 40 wt % of a vinyl cyanide compound; and 20 to 37 wt % of glass fiber (E) including 50 to 70 wt % of silica (SiO2).
Because the composition has excellent heat resistance, fluidity, and impact strength, tensile strength, flexural strength, and flexural modulus, it is applicable to manufacture of automotive exterior materials and parts for automotive electric/electronic equipment.

公开(公告)号：US20230383054A1

公开(公告)日：2023-11-30

申请号：US18032496

申请日：2022-09-29

Applicant: LG CHEM, LTD.

Inventor： Hyun Seok LEE ,  Sun Mo SON ,  Gun KO ,  Seonho KONG

IPC: C08G63/183 ,  C08L69/00 ,  C08F220/18 ,  C08K3/32 ,  C08K3/22 ,  C08F220/32 ,  C08K5/1515 ,  C08L51/00

CPC classification number: C08G63/183 ,  C08L69/00 ,  C08F220/1804 ,  C08K3/32 ,  C08K3/2279 ,  C08F220/325 ,  C08K5/1515 ,  C08L51/003 ,  C08L2201/02 ,  C08L2207/53 ,  C08K2003/324 ,  C08L2203/20 ,  C08L2205/03

Abstract: The present disclosure provides a thermoplastic resin composition including a base resin (A) including a polyalkylene terephthalate and a polycarbonate, an impact modifier (B) having a core-shell structure, a halogenated epoxy-based flame retardant (C), a compatibilizer (D), and a transesterification inhibitor (E) in a predetermined content ratio, wherein the thermoplastic resin composition has a melt flow index (250° C., 5 kg) of 7.0 g/10 min or more and has a WOM value of 70% or more as measured according to UL 746C (f1 Class), and a molded article including the thermoplastic resin composition. The thermoplastic resin composition of the present disclosure may have excellent mechanical strength, molding processability, flame retardancy, hot water resistance, and weather resistance.

公开(公告)号：US20240309203A1

公开(公告)日：2024-09-19

申请号：US18267938

申请日：2022-12-26

Applicant: LG CHEM, LTD.

Inventor： Gun KO ,  Seonho KONG ,  Sun Mo SON ,  Hyun Seok LEE

IPC: C08L67/02 ,  B29C48/00 ,  B29C48/40 ,  B29K67/00 ,  B29K309/08 ,  B29L31/30 ,  B29L31/34 ,  C08K3/32 ,  C08K5/13 ,  C08K7/14 ,  C08K9/02

CPC classification number: C08L67/02 ,  B29C48/022 ,  B29C48/40 ,  C08K3/32 ,  C08K5/13 ,  C08K7/14 ,  C08K9/02 ,  B29K2067/006 ,  B29K2309/08 ,  B29K2995/0016 ,  B29K2995/0082 ,  B29L2031/30 ,  B29L2031/3481 ,  C08K2003/324 ,  C08K2201/003 ,  C08K2201/004 ,  C08L2201/08 ,  C08L2205/035

Abstract: Provided is a composite resin composition for automotive interior materials and an automotive interior material including the same. The composite resin composition comprises: 47 to 52 wt % of a polybutylene terephthalate resin; 10 to 28 wt % of a (meth)acrylate compound-conjugated diene compound-aromatic vinyl compound copolymer; 8 to 14 wt % of a polyethylene terephthalate resin; 0.1 to 2.2 wt % of a carboxy reactive epoxy resin; and 10 to 28 wt % of glass fiber containing SiO2, CaO, and Al2O3, wherein an SiO2 content is greater than a sum of a CaO content and an Al2O3 content. By changing conventional components, the composite resin composition for automotive interior materials provided herein has an effect of improving heat resistance, impact stability, and crystallization rate controllability, satisfying physical property balance between mechanical properties and fluidity, and providing excellent product reliability and appearance.

公开(公告)号：US20240247143A1

公开(公告)日：2024-07-25

申请号：US18021105

申请日：2022-08-12

Applicant: LG CHEM, LTD.

Inventor： Sungmoon CHOI ,  Kyuyoung KIM ,  Soojin SIM ,  Ho Joon PARK ,  Sun Mo SON

IPC: C08L67/02 ,  C08J3/00

CPC classification number: C08L67/02 ,  C08J3/005 ,  C08J2367/02 ,  C08J2423/08 ,  C08J2423/26 ,  C08L2207/04

Abstract: Provided is a thermoplastic polyester elastomer resin composition, a method of preparing the polyester elastomer resin composition, and a molded article including the polyester elastomer resin composition. The thermoplastic polyester elastomer resin composition includes 89 to 96 wt % of a thermoplastic polyester elastomer resin (A); 1.5 to 5.5 wt % of a glycidyl group-modified olefin-based rubber polymer (B); and 1.5 to 5.5 wt % of an ionomer resin (C). The thermoplastic polyester elastomer resin composition has excellent mechanical properties and moldability; is capable of suppressing occurrence of flow marks on the inner surface of a molded article; and thus is applicable to a constant velocity joint boot.