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1.发明公开公开(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
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.
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公开(公告)号：US20250051512A1
公开(公告)日：2025-02-13
申请号：US18682376
申请日：2023-07-07
Applicant: LG CHEM, LTD.
Inventor： Ji Heun LEE , Won Seok PARK , Tae Hun KWON , Jae Chan PARK
IPC: C08G63/183 , C08K3/36 , C08K5/3492 , C08K5/52 , C08K5/5313 , C08L67/02
Abstract: Disclosed are a polybutylene terephthalate resin composition, a method of preparing the same and a molded article including the same. The polybutylene terephthalate resin composition can provide an excellent physical property balance between mechanical strength and flame retardancy at a level equivalent to or higher than that of a polyester resin composite material containing a halogen-based flame retardant, has excellent processability due to excellent flowability, and is specifically suitable as a material for automotive electronic components.
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3.发明公开
公开(公告)号：US20240218174A1
公开(公告)日：2024-07-04
申请号：US17925784
申请日：2021-11-26
Applicant: LG CHEM, LTD.
Inventor： Gun KO , Tae Hun KWON , Hee Jae HWANG , Jae Chan PARK , Yong KIM
CPC classification number: C08L67/02 , C08F222/06 , C08K5/20 , C08L25/12 , C08L35/06 , C08L55/02 , C08L2201/08 , C08L2203/30 , C08L2205/035
Abstract: A thermoplastic resin composition includes a polyester resin (A); a vinyl cyanide compound-conjugated diene compound-aromatic vinyl compound graft copolymer (B); an alpha-methylstyrene-vinyl cyanide compound copolymer (C); a maleimide-based polymer (D); and an amide-based lubricant (E), A method of preparing the thermoplastic resin composition, and a molded article including the thermoplastic resin composition are also described.
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公开(公告)号：US20230120048A1
公开(公告)日：2023-04-20
申请号：US17968096
申请日：2022-10-18
Applicant: HYUNDAI MOBIS CO., LTD. , LG CHEM, LTD.
Inventor： Hyoung Taek KANG , Hyeon Don KIM , Hee Jae HWANG , Tae Hun KWON , Jae Chan PARK
IPC: C08L67/02
Abstract: The present invention relates to a resin molded product having excellent laser transmission stability and hydrolysis resistance, a camera module member including the resin molded product, and an automobile electronic component member including the resin molded product, and provides a resin molded product having a laser transmittance of 80% or more of a 1.5 mm-thick rectangular-specimen gate part measured at a wavelength of 980 nm, a flexural strength retention rate of 50% or more, a bonding strength retention rate of 50% or more, and a laser transmittance standard deviation of 20 or less, a camera module member including the resin molded product, and an automobile electronic component member including the resin molded product.
