公开(公告)号：US20240002602A1

公开(公告)日：2024-01-04

申请号：US18250172

申请日：2021-08-17

Applicant: LG CHEM, LTD.

Inventor： Hye Jin PARK

IPC: C08G73/10 ,  C08J5/18 ,  H10K77/10

CPC classification number: C08G73/1085 ,  C08J5/18 ,  H10K2102/311 ,  C08J2379/08 ,  H10K77/111

Abstract: The present disclosure relates to a polyimide polymer film capable of realizing excellent optical properties and high heat resistance, a substrate for flexible display device and a flexible display device using the same.

公开(公告)号：US20230398510A1

公开(公告)日：2023-12-14

申请号：US18027595

申请日：2021-12-10

Applicant: LG CHEM, LTD.

Inventor： Kwang Woo YOON ,  Hye Jin PARK ,  Se Hyun KIM ,  Doo Sung HWANG

IPC: B01J8/18 ,  C01B32/16

CPC classification number: B01J8/1827 ,  B01J8/1845 ,  B01J8/1836 ,  C01B32/16 ,  B01J2208/00938 ,  B01J2208/00752 ,  B01J2208/00176

Abstract: The present invention relates to a carbon nanotube manufacturing apparatus, and a carbon nanotube manufacturing apparatus according to an embodiment of the present invention comprises: a reactor body formed in a cylindrical shape and having an accommodation portion which is a space in which a reaction occurs; and a distribution plate which is positioned below the accommodation portion of the reactor body and distributes a reaction gas supplied to the accommodation portion. The reactor body comprises: a lower reactor; an upper reactor having a diameter greater than that of the lower reactor; and an expansion portion which connects the upper reactor to the lower reactor and has a gradually expanding diameter. Related methods are also described.

公开(公告)号：US20230227312A1

公开(公告)日：2023-07-20

申请号：US17928890

申请日：2021-08-06

Applicant: LG CHEM, LTD.

Inventor： Hyung Sik JANG ,  Hye Jin PARK ,  Se Hyun KIM ,  Og Sin KIM

IPC: C01B32/158 ,  C08K3/04

CPC classification number: C01B32/158 ,  C08K3/041 ,  C01P2004/61 ,  C01P2004/13 ,  C01B2202/34 ,  C01P2006/10

Abstract: Low-density carbon nanotubes may be prepared using a fluidized bed reactor provided with a side nozzle, and are excellent in electrical properties and appearance characteristics when used as a composite material.

公开(公告)号：US20210198402A1

公开(公告)日：2021-07-01

申请号：US17058473

申请日：2020-03-20

Applicant: LG CHEM, LTD.

Inventor： Hye Jin PARK ,  Changho CHO

IPC: C08F220/32 ,  C08F2/50 ,  C08F220/18 ,  C08F265/06 ,  G03F7/028 ,  G03F7/00

Abstract: The present invention relates to an alkali soluble, photo-curable and thermo-curable copolymer containing three types of (meth)acrylate repeating units classified by the type of functional groups present at the terminal, and a photosensitive resin composition, a photosensitive resin film, and a color filter using the same.