Patents Assigned to LG Chem, Ltd.
  • Publication number: 20240109858
    Abstract: The present invention relates to a compound capable of lowering the flammability of a non-aqueous electrolyte when included in the non-aqueous electrolyte and improving the life properties of a battery by forming an electrode-electrolyte interface which is stable at high temperatures and low in resistance, and relates to a compound represented by Formula I descried herein, a non-aqueous electrolyte solution and a lithium secondary battery both including the compound, n, m, Ak, and X are described herein.
    Type: Application
    Filed: March 23, 2022
    Publication date: April 4, 2024
    Applicants: LG Chem, Ltd., LG Energy Solution, Ltd.
    Inventors: Jung Keun Kim, Su Jeong Kim, Mi Sook Lee, Won Kyun Lee, Duk Hun Jang, Jeong Ae Yoon, Kyoung Hoon Kim, Chul Haeng Lee, Mi Yeon Oh, Kil Sun Lee, Jung Min Lee, Esder Kang, Chan Woo Noh, Chul Eun Yeom
  • Publication number: 20240113293
    Abstract: The present disclosure relates to a lithium secondary battery. Since the lithium secondary battery according to the present disclosure includes a lithium transition metal oxide having a stabilized lattice structure with a hetero-element introduced therein, gas generation during charging and discharging can be suppressed, and improved safety and lifespan can be achieved.
    Type: Application
    Filed: July 1, 2022
    Publication date: April 4, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Yeilin Ham, Seokhyun Yoon, Yoon Jae Lee, Jongmin Roh
  • Publication number: 20240110049
    Abstract: The present disclosure relates to a thermoplastic resin composition and an exterior material including the same. The thermoplastic resin composition included 90 to 99.5% by weight of styrene-based resins each including 5 to 30% by weight of acrylate rubber having a DLS average particle diameter of 0.25 to 0.32 ?m or a TEM average particle diameter of 0.2 to 0.27 ?m based on a total weight of the styrene-based resins; and 0.5 to 10% by weight of a polyamide resin, and an exterior material including the thermoplastic resin composition. According to the present disclosure, a low-gloss thermoplastic resin composition having excellent aesthetics, such as softness, luxuriousness, and naturalness, due to uniformity, low gloss, and improvement in surface texture while having mechanical properties and processability equal or superior to those of conventional ASA resins; and an exterior material including the low-gloss thermoplastic resin composition may be provided.
    Type: Application
    Filed: December 11, 2020
    Publication date: April 4, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Daeun SUNG, Tae Hoon KIM, Chun Ho PARK, Yong Hee AN, Wangrae JOE, Ho Hoon KIM, Jeongmin JANG
  • Publication number: 20240109923
    Abstract: Disclosed is a novel transition metal compound that exhibits excellent catalytic activity in polyethylene polymerization and is useful for preparing polyethylene having a high intramolecular short-chain branch content without deteriorating physical properties such as molecular weight, melting point, and density; a catalyst composition comprising the same; and a method for preparing polyethylene using the same.
    Type: Application
    Filed: July 16, 2021
    Publication date: April 4, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Insun LEE, Seok Hwan KIM, Byung Seok KIM, Yoonchul JUNG, Minyoung KANG, Seyoung KIM
  • Publication number: 20240110018
    Abstract: The present disclosure relates to a preparation method of a super absorbent polymer having excellent basic absorbency and liquid permeability at the same time by optimizing the degree of cross-linking of a base resin powder and a surface cross-linked layer, and a super absorbent polymer prepared therefrom.
    Type: Application
    Filed: December 14, 2023
    Publication date: April 4, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Tae Young Won, Hyemin Lee, Junwye Lee, Seongbeom Heo, Kwangin Shin, Chang Hun Han
  • Publication number: 20240108001
    Abstract: An antibacterial composition according to an exemplary embodiment of the present technology comprises one or more compounds comprising a quaternary ammonium structure having an acrylate group or a methacrylate group, in which a critical micelle concentration of the compound comprising the quaternary ammonium structure is 0.1 wt % to 3 wt %.
    Type: Application
    Filed: July 13, 2022
    Publication date: April 4, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Yeonjoo Kang, Ji Seok Lee, Soonhee Kang, Sung Joon Oh
  • Publication number: 20240109789
    Abstract: A positive electrode active material, a method of preparing the same, and a positive electrode and lithium secondary battery including the same are disclosed herein. In some embodiments, a positive electrode active material includes a lithium transition metal oxide which contains 60 mol % or more of nickel based on a total number of moles of transition metals excluding lithium in the lithium transition metal oxide, wherein the oxide is in a form of a secondary particle which is an aggregate of primary particles, wherein the lithium transition metal oxide satisfies Equation 1: 1 ? x y ? 20 Wherein x is a minimum area of a rectangle including all pores having an area greater than 0.002 ?m2 among closed pores distributed in the secondary particle, and y is a total sum of areas of the pores having an area greater than 0.002 ?m2 among the closed pores distributed in the secondary particle.
    Type: Application
    Filed: February 3, 2022
    Publication date: April 4, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Ji Hun Jung, Hyun Ah Park, Eung Ju Lee, Min Hee Son
  • Publication number: 20240109987
    Abstract: The present disclosure relates to a polyethylene resin composition capable of improving transparency and moisture barrier properties without deterioration in physical properties of a film, and a film including the same, wherein the polyethylene resin composition comprises a nucleating agent and a lubricant both containing a cation of a same metal selected from Group 2 or Group 12 metals.
    Type: Application
    Filed: August 31, 2022
    Publication date: April 4, 2024
    Applicants: LG Chem, Ltd., LG Chem, Ltd.
    Inventors: Hyun Mook Jeong, Dodam Kim, Yi Young Choi, Hee Su Oh
  • Patent number: 11945969
    Abstract: The present invention relates to an anti-glare film including: a light-transmitting substrate; and a hard coating layer containing a binder resin and inorganic fine particles dispersed in the binder resin, wherein the anti-glare film has a specific reflection intensity ratio (R), and a polarizing plate and a display device including the anti-glare film.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: April 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Hanna Lee, Jung Hyun Seo, Yeongrae Chang, Jaeyoung Kim, Intaek Song
  • Patent number: 11944940
    Abstract: Provided is a method for manufacturing a water-treatment membrane, the method including bringing an aqueous solution including free chlorine and a halogen ion into contact with a polyamide active layer, wherein the free chlorine is present in an amount from 150 ppm to 400 ppm and the halogen ion is present in an amount from 150 ppm to 400 ppm based on the aqueous solution, and a water-treatment membrane manufactured using the same.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: April 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Hyelim Kang, Danbi Han, Eun Woo Cho, Hyungjoon Jeon, Chong Kyu Shin, Lakwon Choi
  • Patent number: 11946695
    Abstract: An apparatus and a method of firing a unit cell for a solid oxide fuel cell performs pre-sintering and main sintering using a single apparatus by adjusting a height of a setter to apply pressure. The pressure prevents warping.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: April 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Curie Park, Eun Yong Park, Dong Oh Shin, Kwangwook Choi
  • Patent number: 11944961
    Abstract: The present disclosure relates to a method for regenerating a waste organic zinc catalyst by performing surface modification using a dicarboxylic acid and a zinc compound. When using the method for regenerating an organic zinc catalyst according to the present disclosure, the organic zinc catalyst can be regenerated using a convenient method which modifies the dicarboxylic acid and the zinc compound in an alternately repeated manner.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 2, 2024
    Assignee: LG Chem, Ltd.
    Inventor: Sung Kyoung Kim
  • Patent number: 11950504
    Abstract: Provided is a compound of Formula 1: Ar1 to Ar4 are each independently hydrogen, deuterium, a halogen group, a nitrile group, or a substituted or unsubstituted: silyl, boron, alkyl, alkenyl, alkynyl, alkoxy, aryloxy, cycloalkyl, aryl, or heterocyclic group, or adjacent groups are bonded together to form a substituted or unsubstituted aliphatic hydrocarbon ring; A1 and A2 are each independently hydrogen, deuterium, a halogen group, a nitrile group, or a substituted or unsubstituted: silyl, boron, alkyl, alkenyl, alkynyl, alkoxy, aryloxy, cycloalkyl, aryl, or heterocyclic group, or are bonded together to form a substituted or unsubstituted ring; R1 to R3 are each independently hydrogen, deuterium, a halogen group, a nitrile group, or a substituted or unsubstituted; silyl, boron, alkyl, alkenyl, alkynyl, alkoxy, aryloxy, cycloalkyl, aryl, amine, or heterocyclic group; and n1 to n3 are each 0 to 3, and 2 or more, the substituents are the same as or different from each other, and an organic light emitting d
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: April 2, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Moung Gon Kim, Wanpyo Hong, Sujeong Geum, Dong Hoon Lee, Dongheon Kim
  • Patent number: 11950505
    Abstract: Provided is a compound of Chemical Formula 1: wherein: X1 is N or CR, X2 is N or CR?, and X3 is N or CR?; two or more of X1 to X3 are N; R, R?, R? and R1 each independently is hydrogen or deuterium, a is an integer of 0 to 9, and when a is 2 or greater, the R1s are the same as or different from each other; Ar1 and Ar2 each independently is a substituted or unsubstituted aryl group; L is a direct bond or a substituted or unsubstituted arylene group, n is an integer of 1 to 3, and when n is 2 or 3, the Ls are the same as or different from each other; and R11 to R18 each independently is hydrogen, deuterium, a nitrile group, or a substituted or unsubstituted: alkyl group, cycloalkyl group, alkoxy group, aryloxy group, aryl group, or heteroaryl group, or bond to adjacent groups to form a substituted or unsubstituted ring, and an organic light emitting device comprising same.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: April 2, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Minjun Kim, Kongkyeom Kim, Min Woo Lee, Donghee Kim
  • Patent number: 11945915
    Abstract: A method for synthesizing a pre-hydrolyzed polysilicate, wherein a polysilicate is applied as a reactant when synthesizing the pre-hydrolyzed polysilicate, and the total amount of water added in the reaction system is specified. The method is capable of omitting a condensation reaction by applying a polysilicate as a reactant, thereby significantly shortening synthesis time and reducing production costs when compared with a typical synthesis method in which alkoxysilane-based monomer compound is used as a reactant. In addition, the gelation reaction time and the weight average molecular weight can be easily controlled, and a pre-hydrolyzed polysilicate excellent in storage stability and processability can be synthesized.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: April 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Kyu Reon Lee, Kyoung Shil Oh, Jong Hun Kim, Se Won Baek
  • Patent number: 11945914
    Abstract: A curable composition for forming a high refractive index optical material including an episulfide compound, a cyclic disulfide compound, and a reducing agent, and an optical material comprising a cured product of the curable composition.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: April 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Heon Kim, Hee Jung Choi, Yeongrae Chang
  • Patent number: 11944987
    Abstract: A pressurizing centrifugal dehydrator for removing moisture according to the present disclosure includes: an inner basket into which slurry is introduced; an outer basket surrounding the inner basket; a blocking barrier disposed in the outer basket; and a gas supplying portion for supplying gas into the inner basket and/or the outer basket, wherein a dehydration product is positioned between an outer circumference of the blocking barrier and an inner side of the outer basket to maintain airtightness of the outer basket.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: April 2, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Sang Ho Lee, Dae Young Shin, Sung Woo Jeong, Eun Jung Joo
  • Patent number: 11946642
    Abstract: Provided is a waste water incineration method including (S10) supplying waste water to an evaporator to evaporate the waste water, (S20) supplying an evaporator top discharge stream discharged from the evaporator to an incinerator to incinerate the discharge stream, (S30) mixing a first incinerator discharge stream and a second incinerator discharge stream discharged from the incinerator to form a mixed discharge stream, and (S40) heat-exchanging the mixed discharge stream and a fresh air stream in a first heat exchanger, wherein the mixed discharge stream which has passed through the first heat exchanger is heat-exchanged in a second heat exchanger and discharged to the atmosphere.
    Type: Grant
    Filed: December 23, 2019
    Date of Patent: April 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Tae Woo Kim, Sung Kyu Lee
  • Patent number: 11950440
    Abstract: An organic light emitting device comprising an anode, a hole transport layer, a light emitting layer including a host and a dopant, and a cathode, where a difference between a dipole moment value of a compound included in the hole transport layer and a dipole moment value of the host is 1.0 to 2.0, and the organic light emitting device having low driving voltage, high emission efficiency and long lifetime characteristics.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: April 2, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jaegoo Lee, Dongkeun Song, Jiyoung Noh, Yongbum Cha, Woochul Lee
  • Publication number: 20240100508
    Abstract: The catalyst for methane reformation according to an exemplary embodiment of the present application comprises: a porous metal support; perovskite-based catalyst particles supported on the porous metal support; and a perovskite-based binder supported on the porous metal support, and the perovskite-based catalyst particles and the perovskite-based binder each independently comprise the compound represented by Chemical Formula 1: Sr1-xAxTi1-yByO3-???[Chemical Formula 1] wherein all the variables are described herein.
    Type: Application
    Filed: July 27, 2022
    Publication date: March 28, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Sojin Kim, Sangjin Kim, Suji Kim, Jun Yeon Cho, Jae Soon Choi, Jun Seon Choi