公开(公告)号：US11641778B2

公开(公告)日：2023-05-02

申请号：US16486773

申请日：2018-07-10

申请人： LG CHEM, LTD.

发明人： Jungha Lee ,  Dong Hoon Lee ,  Jungoh Huh ,  Seongmi Cho ,  Dong Uk Heo ,  Min Woo Jung

IPC分类号： C07D405/14 ,  C07D413/14 ,  C07D417/14 ,  C07D495/04 ,  H01L51/00 ,  C09K11/06 ,  H01L51/50

摘要： Provided are a compound of Chemical Formula 1: and an organic light emitting device including the same.

公开(公告)号：US11639917B2

公开(公告)日：2023-05-02

申请号：US16959489

申请日：2019-09-23

申请人： LG Chem, Ltd.

发明人： Joon Seok Lee ,  So Yeon Kim ,  Bumgyu Choi ,  Byoung Hyoun Kim

IPC分类号： G01N30/34 ,  G01N30/36 ,  G01N30/74 ,  G01N30/64

摘要： The present invention relates to a dianhydride analysis method, which can reliably analyze a dianhydride having high reactivity and low solubility. In addition, the present invention can analyze the structure of impurities by separating the impurities on the basis of having a similar retention time in HPLC analysis, and can analyze the purity of the dianhydride with or without chromophores.

公开(公告)号：US20230131529A1

公开(公告)日：2023-04-27

申请号：US17920861

申请日：2021-10-27

申请人： LG CHEM, LTD.

发明人： Mi Kyung KIM ,  Hyebin KIM ,  Jaeik LEE ,  Eunkyo KIM

IPC分类号： C07C51/377 ,  C07C51/44

摘要： Provided is a method for producing acrylic acid, the method including: preparing a reaction product containing acrylic acid by supplying lactic acid to a reactor and performing a dehydration reaction; supplying a reactor discharge stream containing the reaction product to a cooling tower and condensing the result to transfer a lower discharge stream including a condensate to an acrylic acid purification unit and supplying a non-condensate discharged as an upper discharge stream to a distillation tower; and, in the distillation tower, circulating the lower discharge stream containing acrylic acid to the cooling tower, and removing acetaldehyde from the upper discharge stream.

公开(公告)号：US20230128259A1

公开(公告)日：2023-04-27

申请号：US17911901

申请日：2021-04-29

申请人： LG CHEM, LTD.

发明人： Miyeon HAN ,  Sung Kil HONG ,  Dong Uk HEO ,  Jung Min YOON ,  Heekyung YUN

IPC分类号： H10K85/60 ,  C07C255/50 ,  C09K11/06 ,  C07C255/51 ,  C07D213/57 ,  C07C255/52 ,  C07D239/74 ,  C07D307/91 ,  C07D209/88 ,  C07D251/24 ,  C07C255/54 ,  C07D333/76

摘要： Provided is a compound of Chemical Formula 1: wherein n is 0 or 1, when n is 0, at least one of R1 to R10 is a group of Chemical Formula A, and when n is 1, at least one of R1 to R12 is a group of Chemical Formula A: wherein L1 is a direct bond, or a substituted or unsubstituted arylene or heteroarylene group; l1 is an integer of 1 to 5; m is an integer of 1 to 3; when l1 is 2 or greater, the two or more L1s are the same as or different from each other, and an organic light emitting device including the same.

公开(公告)号：US11638382B2

公开(公告)日：2023-04-25

申请号：US16467814

申请日：2017-12-11

申请人： LG CHEM, LTD.

发明人： Kook Hyun Choi ,  Joon Hyung Kim ,  Yu Jin Woo ,  Mi Lim Yu

IPC分类号： G03F7/028

摘要： The present application relates to a method for preparing an organic electronic device, and the organic electronic device prepared by the same, the method for preparing an organic electronic device can improve flatness and adhesion of an organic layer in a process of sealing an organic electronic element to effectively block moisture or oxygen from the outside, thereby securing the lifetime of the organic electronic device.

公开(公告)号：US11635650B2

公开(公告)日：2023-04-25

申请号：US17426891

申请日：2020-01-14

申请人： LG Chem, Ltd.

发明人： Ji Hoon Park ,  Young Shin Lee ,  Moon Soo Park

IPC分类号： G02F1/133 ,  G02F1/1335 ,  E06B9/24 ,  G02F1/1333

摘要： An optical device is disclosed herein. In some embodiments, an optical device includes a first base film and a second base film, a light modulation layer existing between the first and second base films, electrode layers formed on surfaces of the first and second base films that face the light modulation layer, wherein each electrode layer comprises a first region capable of applying an electric field to the light modulation layer, and a second region connecting the electrode layer to an external power source, wherein the second region on the first base film and the second region on the second base film face each other, and an insulating layer disposed between the facing second regions of the first and second base films. The optical device is capable of preventing defects such as short circuits even when an external power source has been connected in an encapsulated structure.

公开(公告)号：US11635466B2

公开(公告)日：2023-04-25

申请号：US16631626

申请日：2018-11-20

申请人： LG Chem, Ltd.

发明人： You Seob Gil

IPC分类号： G01R31/327 ,  G01R19/165 ,  H05K1/18

摘要： A relay abnormality diagnosis system and method capable of diagnosing an abnormality of a relay by directly connecting a diagnosis resistor to a current measurement unit and by using a current input to the current measurement unit from the diagnosis resistor and a current flowing on an electric circuit measured by the current measurement unit, in the relay abnormality diagnosis system that diagnoses the abnormality of the relay using the diagnosis resistor.

公开(公告)号：US11633720B2

公开(公告)日：2023-04-25

申请号：US17201484

申请日：2021-03-15

申请人： LG Chem, Ltd.

发明人： Tae Bin Ahn ,  Dong Hyun Kim ,  Yeon Soo Kim ,  Hyun Sup Lee ,  Chang Sun Han ,  Myung Han Lee

IPC分类号： B01J20/26 ,  B01J20/30 ,  C08F220/40 ,  C08J3/24

摘要： The super absorbent polymer comprises: a base polymer powder including a first crosslinked polymer of a water-soluble ethylenically unsaturated monomer having at least partially neutralized acidic groups; and a surface crosslinked layer formed on the base polymer powder and including a second crosslinked polymer in which the first crosslinked polymer is further crosslinked via a surface crosslinking agent, wherein the super absorbent polymer has: a fixed height absorption (FHA) of 22.5 g/g to 29 g/g, a saline flow conductivity (SFC) of 35 (·10−7 cm3·s/g) or more, and T-20 of 180 seconds or less.

公开(公告)号：US20230124243A1

公开(公告)日：2023-04-20

申请号：US17909901

申请日：2021-12-23

申请人： LG Chem, Ltd.

发明人： Sung Soo Park ,  Heechang Woo ,  Gicheul Kim

IPC分类号： B01J20/26 ,  C08J3/12 ,  C08J3/24 ,  B01J20/32 ,  C08F220/06

摘要： The present disclosure relates to a method for preparing a super absorbent polymer. More specifically, it relates to a method for preparing a super absorbent polymer capable of improving drying efficiency, reducing a generation amount of refines, and simultaneously improving absorption performance, in particular, absorbing under pressure and permeability of the finally prepared super absorbent polymer by controlling granulation strength of the extruded fine reassembly.

公开(公告)号：US20230123951A1

公开(公告)日：2023-04-20

申请号：US18085025

申请日：2022-12-20

申请人： LG Chem, Ltd.

发明人： Ki Tae Kim ,  Chang Wan Koo ,  Sang Hoon Choy

IPC分类号： H01M4/36 ,  H01M4/04 ,  H01M4/139 ,  H01M4/62 ,  H01M10/052

摘要： The present invention provides: an electrode mixture manufacturing method comprising the processes of introducing a first binder, an electrode active material, and a conductive material into an extruder, performing a first mixing of the first binder, the electrode active material, and the conductive material in the extruder, additionally introducing a second binder into the extruder and performing a second mixing, and yielding an electrode mixture resulting from the first mixing and the second mixing; an electrode mixture manufactured thereby; and an electrode manufacturing method using the electrode mixture.