公开(公告)号：US20240317993A1

公开(公告)日：2024-09-26

申请号：US18271226

申请日：2023-01-05

Applicant: LG CHEM, LTD.

Inventor： Ran Hee LEE ,  Chang Hee SONG ,  Tae Hun KWON ,  Jae Chan PARK

IPC: C08L67/02 ,  C08K3/34 ,  C08K7/14

CPC classification number: C08L67/02 ,  C08K3/346 ,  C08K7/14 ,  C08K2201/003 ,  C08K2201/004 ,  C08L2203/20 ,  C08L2205/025

Abstract: Provided is a polyester resin composition that includes 28 to 50 wt % of a polybutylene terephthalate resin, 20 to 40 wt % of a polyethylene terephthalate resin, 20.5 to 30 wt % of a reinforcing fiber, and 5 to 30 wt % of a layered clay mineral, wherein the polyethylene terephthalate resin comprises one or more selected from among 1,4-cyclohexanedimethanol, isophthalic acid, and butanediol. The polyester resin composition can maintain flatness and minimize deformation even under high temperature environments by maintaining the balance between mechanical properties and heat resistance and thus being suitable for automotive parts, such as parts for electronic control units, the covers thereof, and the cover parts thereof. Also provided are a method of preparing the polyester resin composition, and a molded article manufactured using the polyester resin composition.

公开(公告)号：US20220002544A1

公开(公告)日：2022-01-06

申请号：US17292996

申请日：2020-10-23

Applicant: LG CHEM, LTD.

Inventor： Ran Hee LEE ,  Soong In KIM ,  Myong Jo HAM

IPC: C08L81/02 ,  C08K7/14 ,  C08K9/06 ,  C08L79/08

Abstract: Disclosed is a heat insulating material composition including crosslinked polyarylene sulfide and glass fiber. The heat insulating material composition according to an embodiment of the present disclosure can realize excellent insulation performance and has excellent impact resistance and support performance, even when provided in a thin thickness. Accordingly, the heat insulating material composition according to an embodiment of the present disclosure can be applied usefully to electronic products, such as a refrigerator, requiring an adiabatic body.