LG Chem, Ltd.

Republic of Korea

Back to Profile

1-100 of 17,564 for LG Chem, Ltd. and 1 subsidiary Sort by
Query
Excluding Subsidiaries
Aggregations Reset Report
IP Type
        Patent 17,501
        Trademark 63
Jurisdiction
        World 11,399
        United States 6,025
        Canada 132
        Europe 8
Owner / Subsidiary
[Owner] LG Chem, Ltd. 17,564
FarmHannong Co., Ltd. 10
Date
New (last 4 weeks) 79
2025 June (MTD) 48
2025 May 101
2025 April 70
2025 March 77
See more
IPC Class
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof 1,372
H01M 10/052 - Li-accumulators 1,215
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) 1,170
H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders 956
C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials 850
See more
NICE Class
05 - Pharmaceutical, veterinary and sanitary products 30
01 - Chemical and biological materials for industrial, scientific and agricultural use 26
17 - Rubber and plastic; packing and insulating materials 17
40 - Treatment of materials; recycling, air and water treatment, 9
11 - Environmental control apparatus 5
See more
Status
Pending 1,384
Registered / In Force 16,180
  1     2     3     ...     100        Next Page

1.

METHOD FOR PREPARATION OF HIGH-PURITY (METH)ACRYLIC ACID

      
Application Number 18707678
Status Pending
Filing Date 2023-08-24
First Publication Date 2025-06-19
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Yoo, Sung Jin
  • Jang, Kyung Soo
  • Lee, Sung Kyu

Abstract

A method for preparing (meth)acrylic acid, the method including the steps of: bringing a mixed gas including (meth)acrylic acid into contact with an absorption solvent in an absorption column; supplying a first (meth)acrylic acid solution discharged from a lower portion of the absorption column to a high-boiling-point by-product separation column, and supplying an upper discharge stream from the high-boiling-point by-product separation column to a crystallizer; supplying a second (meth)acrylic acid solution discharged from a side portion of the absorption column to the crystallizer; and obtaining (meth)acrylic acid crystallized in the crystallizer, and circulating a mother liquor recovered from the crystallizer to the absorption column.

IPC Classes  ?

  • C07C 51/47 - SeparationPurificationStabilisationUse of additives by solid-liquid treatmentSeparationPurificationStabilisationUse of additives by chemisorption

2.

Spiral Baffle System

      
Application Number 18848321
Status Pending
Filing Date 2023-10-20
First Publication Date 2025-06-19
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Kim, Dae Hun
  • Nho, Jun Seok
  • Min, Kyung Hoon

Abstract

The present disclosure relates to a spiral baffle system that can adjust the pitch of spiral baffles installed to be spaced apart along the longitudinal direction in the housing during the process of mixing and heating a treatment object inputted and transferred into the housing of the heating furnace.

IPC Classes  ?

  • F27B 7/18 - Rotary-drum furnaces, i.e. horizontal or slightly inclined with means for agitating or moving the charge the means being movable within the drum
  • F27B 7/33 - Arrangement of devices for discharging

3.

CATALYST FOR PRODUCING (METH)ACRYLIC ACID, AND METHOD FOR PRODUCING CATALYST FOR PRODUCING (METH)ACRYLIC ACID

      
Application Number 18847187
Status Pending
Filing Date 2024-01-15
First Publication Date 2025-06-19
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Saeha
  • Seo, Dong Woo
  • Choi, Byung Yul
  • Park, Hyun Woo
  • Joo, Hyeonho
  • Choe, Young Hyun
  • Kim, Minsu
  • Lim, Seulgi
  • Lim, Hyunsub
  • Choi, Youngju

Abstract

A catalyst of Chemical Formula 1: A catalyst of Chemical Formula 1: MoaVbPcM1dM2eM3fM4gM5hM6iOj  [Chemical Formula 1] A catalyst of Chemical Formula 1: MoaVbPcM1dM2eM3fM4gM5hM6iOj  [Chemical Formula 1] where Mo is molybdenum, V is vanadium, P is phosphorus, and O is oxygen, M1 is one or more selected from W, Sb, As, Sn, and Pb, M2 is one or more selected from Fe, Zn, Cr, Mn, and Cu, M3 is one or more selected from Se, Ga, Ti, Ge, Cd, Ta, and Ni, M4 is one or more selected from Al, Zr, Si, and Ce, M5 is one or more selected from Au, Pd, Pt, Ag, Ru, and Rh, M6 is one or more selected from Na, K, Li, Rb, Cs, Ca, Mg, Sr, and Ba, a, b, c, d, e, f, g, h, i, and j represent the atomic proportion of each element, for preparing (meth)acrylic acid; and a method for preparing the catalyst.

IPC Classes  ?

  • B01J 27/199 - Vanadium with chromium, molybdenum, tungsten or polonium
  • B01J 37/04 - Mixing
  • B01J 37/08 - Heat treatment
  • C07C 51/25 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring

4.

METHOD FOR MANUFACTURING TRANSPARENT SHEET, AND TRANSPARENT SHEET

      
Application Number 18293899
Status Pending
Filing Date 2022-08-12
First Publication Date 2025-06-19
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ryu, Jea Hoon
  • Kim, Dae Young

Abstract

The present invention relates to a method for manufacturing a transparent sheet, and more specifically, to a method for manufacturing a transparent sheet in which a first transparent resin that is a graft copolymer including a conjugated diene-based polymer and a second transparent sheet that is a graft copolymer including an acrylic polymer, and a transparent sheet manufactured by the method.

IPC Classes  ?

  • B32B 37/15 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
  • B29C 48/08 - Flat, e.g. panels flexible, e.g. films
  • B29C 48/30 - Extrusion nozzles or dies
  • B29K 9/00 - Use of rubber derived from conjugated dienes, as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • B29L 7/00 - Flat articles, e.g. films or sheets
  • B32B 25/08 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
  • B32B 25/16 - Layered products essentially comprising natural or synthetic rubber comprising polydienes or poly-halodienes
  • B32B 37/06 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the heating method
  • B32B 37/10 - Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using direct action of vacuum or fluid pressure

5.

Optical Device

      
Application Number 18836229
Status Pending
Filing Date 2023-02-10
First Publication Date 2025-06-19
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • You, Jung Sun
  • Kim, Jung Woon
  • Gim, Min Jun
  • Oh, Dong Hyun

Abstract

The present application relates to an optical device. The optical device of the present application can properly maintain a cell gap of a liquid crystal cell, have excellent adhesion between an upper substrate and a lower substrate, and can prevent pressing black spots after a high-temperature and high-pressure autoclave process.

IPC Classes  ?

  • G02F 1/1339 - GasketsSpacersSealing of cells
  • G02F 1/1335 - Structural association of cells with optical devices, e.g. polarisers or reflectors
  • G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
  • G02F 1/1343 - Electrodes

6.

Copolymer, Antimicrobial Deodorant Composition Comprising Same, and Method for Producing Same

      
Application Number 18846420
Status Pending
Filing Date 2023-10-13
First Publication Date 2025-06-19
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Moon, Hyeran
  • Kim, Gi Hong
  • Lee, Jeong Yun
  • Lee, Hwanhee
  • Lee, Donghwan
  • Choi, Hyungsam
  • Kwon, Seongjin
  • Yun, Haesung

Abstract

Provided are a copolymer including a first unit derived from starch and a second unit derived from a compound represented by the Chemical Formula 1, an antibacterial deodorant composition including the same, and a preparation method thereof: Provided are a copolymer including a first unit derived from starch and a second unit derived from a compound represented by the Chemical Formula 1, an antibacterial deodorant composition including the same, and a preparation method thereof: Provided are a copolymer including a first unit derived from starch and a second unit derived from a compound represented by the Chemical Formula 1, an antibacterial deodorant composition including the same, and a preparation method thereof: wherein all the variables are described herein.

IPC Classes  ?

  • C08F 251/00 - Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
  • A61L 9/01 - Deodorant compositions
  • C08F 220/34 - Esters containing nitrogen
  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin

7.

INJECTABLE PREPARATION COMPRISING ISOXAZOLINE DERIVATIVE, AND PREPARATION METHOD THEREFOR

      
Application Number 18849729
Status Pending
Filing Date 2023-03-20
First Publication Date 2025-06-19
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Baek, Jaeuk
  • Kim, Sung Won
  • Yoon, Jung Woon

Abstract

The present invention relates to a preparation for injection including an isoxazoline derivative useful as a caspase inhibitor or a pharmaceutically acceptable salt thereof as an active pharmaceutical ingredient (API). The present invention relates to a preparation for injection including an isoxazoline derivative useful as a caspase inhibitor or a pharmaceutically acceptable salt thereof as an active pharmaceutical ingredient (API). The preparation for injection according to the present invention includes the first solution composed of a high-dose API and the second solution including a reconstitution solution, so that it can be prepared by mixing the first formulation and the second formulation immediately before administration to a patient, and contains the Active-API stably. Therefore, there is an advantage that effective drug efficacy can be expected when administered to a patient.

IPC Classes  ?

  • A61K 31/4725 - Non-condensed isoquinolines, e.g. papaverine containing further heterocyclic rings
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 9/19 - Particulate form, e.g. powders lyophilised
  • A61K 47/02 - Inorganic compounds
  • A61K 47/26 - Carbohydrates, e.g. sugar alcohols, amino sugars, nucleic acids, mono-, di- or oligo-saccharidesDerivatives thereof, e.g. polysorbates, sorbitan fatty acid esters or glycyrrhizin

8.

Method for Manufacturing Electrode Integrated Separator for Lithium Secondary Battery

      
Application Number 18849029
Status Pending
Filing Date 2024-01-19
First Publication Date 2025-06-19
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Koo, Beom Mo
  • Park, Youngjin
  • Lee, Seung Heon
  • Kim, Daeho

Abstract

A method for manufacturing an electrode-integrated separator for a lithium secondary battery includes providing a carrier film with a release layer disposed thereon, forming a laminate pattern including a porous layer pattern and an adhesive layer pattern which are sequentially stacked on the release layer of the carrier film. It also includes forming an electrode active material layer pattern on a metal substrate of an electrode current collector, laminating the carrier film and the metal substrate so that the adhesive layer pattern and the electrode active material layer pattern contact each other, and transferring the porous layer pattern and the adhesive layer pattern onto the electrode active material layer pattern and removing the carrier film having the release layer disposed thereon.

IPC Classes  ?

  • H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
  • H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes

9.

Encapsulant Film Composition and Encapsulant Film Including the Same

      
Application Number 18842602
Status Pending
Filing Date 2023-06-07
First Publication Date 2025-06-19
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Young Woo
  • Gong, Jin Sam
  • Jun, Jung Ho
  • Lee, Eun Jung
  • Hong, Sang Hyun
  • Lee, Hye Ji
  • Han, Sang Wook

Abstract

The encapsulant film composition includes an ethylene/alpha-olefin copolymer and porous silica and has excellent compatibility with a crosslinking additive. The encapsulant film composition has a ratio of an Si—O band integral value to a C—H band integral value of from 3 to 70. When an encapsulant film is produced using the encapsulant film composition, the impregnation time of an ethylene/alpha-olefin copolymer is reduced so that the economic viability of a process of producing an encapsulant film can be improved. Moreover, by delaying the transfer of the crosslinking agent, it is possible to suppress a slip phenomenon of the encapsulant film. The present disclosure also relates to a solar cell module.

IPC Classes  ?

10.

CARRIED CATALYST FOR MANUFACTURING ENTANGLED TYPE CARBON NANOTUBES AND MANUFACTURING METHOD FOR ENTANGLED TYPE CARBON NANOTUBES USING THE SAME

      
Application Number 18847639
Status Pending
Filing Date 2023-12-04
First Publication Date 2025-06-19
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Dong Eun
  • Choi, Jung Ho
  • Hwang, Doo Sung
  • Na, You Wan
  • Kim, Se Hyun

Abstract

A catalyst for manufacturing entangled type carbon nanotubes, which makes it possible to manufacture entangled type carbon nanotubes at a high rate, and a manufacturing method for entangled type carbon nanotubes, which makes it possible to manufacture entangled type carbon nanotubes using the catalyst, are described.

IPC Classes  ?

11.

CATALYST FOR THE PRODUCTION OF CARBON NANOTUBES AND THE PRODUCTION METHOD THEREOF

      
Application Number 18846531
Status Pending
Filing Date 2023-10-26
First Publication Date 2025-06-19
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Sung Jin
  • Kim, Se Hyun
  • Oh, Eu Gene
  • Gim, Min Yeong

Abstract

A novel catalyst for producing carbon nanotubes, capable of synthesizing carbon nanotubes with a high specific surface area in a satisfactory yield, and a method for producing the catalyst is disclosed.

IPC Classes  ?

  • B01J 23/887 - Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups
  • B01J 21/02 - Boron or aluminiumOxides or hydroxides thereof
  • B01J 35/40 - Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
  • B01J 37/04 - Mixing
  • B01J 37/08 - Heat treatment
  • B01J 37/12 - Oxidising
  • C01B 32/162 - Preparation characterised by catalysts

12.

Concentration Measuring Device and Method Based on Spectra Learning

      
Application Number 18580397
Status Pending
Filing Date 2022-11-16
First Publication Date 2025-06-12
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Kim, Jae Hyun
  • Kim, Byung Mook
  • Lee, Jin Yeong
  • Lee, Kyu Hwang
  • Song, Young Soo

Abstract

There is disclosed a method for generating a concentration prediction model for predicting a concentration of a target substance through machine learning. The method includes a training data generation step of generating an optimal transformed spectrum obtained by transforming a basic spectrum of a substance of a known concentration according to a predetermined transformation condition as training data, and a concentration prediction model generation step of generating a concentration prediction model by machine learning the optimal transformed spectrum generated in the training data generation step and transformed according to the predetermined transformation condition and an actually measured concentration of a substance corresponding to the optimal transformed spectrum, and the method may improve accuracy in substance concentration prediction by suppressing a spectral change caused by compounds other than an analyte to be predicted and maximizing the spectral change with a concentration of the analyte.

IPC Classes  ?

  • G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
  • G06N 20/00 - Machine learning

13.

COMPOSITE RESIN COMPOSITION FOR AUTOMOBILE INTERIOR MATERIALS AND AUTOMOBILE INTERIOR MATERIAL MANUFACTURED USING THE SAME

      
Application Number 17909710
Status Pending
Filing Date 2022-02-25
First Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ko, Gun
  • Lee, Jae Hong
  • Son, Sun Mo
  • Kong, Seonho

Abstract

A composite resin composition for automobile interior products and an automobile interior product manufactured using the same are disclosed. More particularly, raw materials included in the composite resin composition for automobile interior products are optimized so that heat resistance and hydrolysis resistance stability are improved. Accordingly, the balance between physical properties such as mechanical properties and fluidity is satisfied and excellent product reliability and appearance can be provided.

IPC Classes  ?

  • C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
  • B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
  • B29K 33/00 - Use of polymers of unsaturated acids or derivatives thereof, as moulding material
  • B29K 63/00 - Use of epoxy resins as moulding material
  • B29K 67/00 - Use of polyesters as moulding material
  • B29K 69/00 - Use of polycarbonates as moulding material
  • B29K 83/00 - Use of polymers having silicon, with or without sulfur, nitrogen, oxygen or carbon only, in the main chain, as moulding material
  • B29K 105/00 - Condition, form or state of moulded material
  • B29L 31/30 - Vehicles, e.g. ships or aircraft, or body parts thereof
  • C08K 5/10 - EstersEther-esters

14.

METHOD FOR PREPARING CATALYST FOR PREPARING (METH)ACRYLIC ACID, CATALYST FOR PREPARING (METH)ACRYLIC ACID, AND METHOD FOR PREPARING (METH)ACRYLIC ACID

      
Application Number 18842337
Status Pending
Filing Date 2023-12-22
First Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Minsu
  • Lim, Hyunsub
  • Choi, Byung Yul
  • Choe, Young Hyun
  • Choi, Youngju
  • Park, Hyun Woo
  • Seo, Dong Woo
  • Lee, Saeha
  • Lim, Seulgi
  • Joo, Hyeonho

Abstract

A method for preparing a catalyst for preparing (meth)acrylic acid, the method including preparing a first catalyst suspension including a molybdenum-based compound, a bismuth-based compound, an M2-based compound, an M3-based first compound, and an M6-based compound; preparing a second catalyst suspension by adding an M3-based second compound to the first catalyst suspension; and preparing a molybdenum-bismuth-based composite metal oxide of Chemical Formula 1 by drying the second catalyst suspension: A method for preparing a catalyst for preparing (meth)acrylic acid, the method including preparing a first catalyst suspension including a molybdenum-based compound, a bismuth-based compound, an M2-based compound, an M3-based first compound, and an M6-based compound; preparing a second catalyst suspension by adding an M3-based second compound to the first catalyst suspension; and preparing a molybdenum-bismuth-based composite metal oxide of Chemical Formula 1 by drying the second catalyst suspension: MoaBibM1cM2dM3eM4fM5gM6hOi  [Chemical Formula 1] A method for preparing a catalyst for preparing (meth)acrylic acid, the method including preparing a first catalyst suspension including a molybdenum-based compound, a bismuth-based compound, an M2-based compound, an M3-based first compound, and an M6-based compound; preparing a second catalyst suspension by adding an M3-based second compound to the first catalyst suspension; and preparing a molybdenum-bismuth-based composite metal oxide of Chemical Formula 1 by drying the second catalyst suspension: MoaBibM1cM2dM3eM4fM5gM6hOi  [Chemical Formula 1] where the M3-based first compound is selected from among M3-based metal nitrates, acetates, chlorides, sulfates, and mixtures thereof, the M3-based second compound is selected from among M3-based metal organic acid salts having 6 or more carbon atoms, carbonates, hydroxides, oxides, and mixtures thereof, and the second catalyst suspension includes a soluble and an insoluble M3-based compound: A method for preparing a catalyst for preparing (meth)acrylic acid, the method including preparing a first catalyst suspension including a molybdenum-based compound, a bismuth-based compound, an M2-based compound, an M3-based first compound, and an M6-based compound; preparing a second catalyst suspension by adding an M3-based second compound to the first catalyst suspension; and preparing a molybdenum-bismuth-based composite metal oxide of Chemical Formula 1 by drying the second catalyst suspension: MoaBibM1cM2dM3eM4fM5gM6hOi  [Chemical Formula 1] where the M3-based first compound is selected from among M3-based metal nitrates, acetates, chlorides, sulfates, and mixtures thereof, the M3-based second compound is selected from among M3-based metal organic acid salts having 6 or more carbon atoms, carbonates, hydroxides, oxides, and mixtures thereof, and the second catalyst suspension includes a soluble and an insoluble M3-based compound: MoaBibM1cM2dM3eM4fM5gM6hOi  [Chemical Formula 1] A method for preparing a catalyst for preparing (meth)acrylic acid, the method including preparing a first catalyst suspension including a molybdenum-based compound, a bismuth-based compound, an M2-based compound, an M3-based first compound, and an M6-based compound; preparing a second catalyst suspension by adding an M3-based second compound to the first catalyst suspension; and preparing a molybdenum-bismuth-based composite metal oxide of Chemical Formula 1 by drying the second catalyst suspension: MoaBibM1cM2dM3eM4fM5gM6hOi  [Chemical Formula 1] where the M3-based first compound is selected from among M3-based metal nitrates, acetates, chlorides, sulfates, and mixtures thereof, the M3-based second compound is selected from among M3-based metal organic acid salts having 6 or more carbon atoms, carbonates, hydroxides, oxides, and mixtures thereof, and the second catalyst suspension includes a soluble and an insoluble M3-based compound: MoaBibM1cM2dM3eM4fM5gM6hOi  [Chemical Formula 1] where the substituents are as defined in the specification; and a method for preparing (meth)acrylic acid.

IPC Classes  ?

  • B01J 23/887 - Molybdenum containing in addition other metals, oxides or hydroxides provided for in groups
  • B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds
  • B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
  • B01J 37/04 - Mixing
  • B01J 37/08 - Heat treatment
  • C07C 51/25 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring

15.

Crosslinking Agent Composition for Olefin-Based Copolymer, Encapsulant Composition for Optical Device Comprising the Same and Encapsulant Film for Optical Device

      
Application Number 18846380
Status Pending
Filing Date 2023-07-10
First Publication Date 2025-06-12
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Si Jung
  • Lee, Eun Jung
  • Gong, Jin Sam
  • Park, Sang Eun
  • Lee, Jin Kuk
  • Kim, Jong Gil

Abstract

Provided are a crosslinking agent composition for an olefin-based copolymer, an encapsulant composition for an optical device, an encapsulant film for an optical device, and an optoelectronic device, wherein a compound of Formula 1 as a crosslinking auxiliary agent is applied in the crosslinking agent composition for an olefin-based copolymer or an encapsulant composition for an optical device, showing excellent productivity and high volume resistivity and light transmittance, Provided are a crosslinking agent composition for an olefin-based copolymer, an encapsulant composition for an optical device, an encapsulant film for an optical device, and an optoelectronic device, wherein a compound of Formula 1 as a crosslinking auxiliary agent is applied in the crosslinking agent composition for an olefin-based copolymer or an encapsulant composition for an optical device, showing excellent productivity and high volume resistivity and light transmittance, wherein all the variables are as described herein.

IPC Classes  ?

  • C07F 7/08 - Compounds having one or more C—Si linkages
  • C09D 123/26 - Coating compositions based on homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCoating compositions based on derivatives of such polymers modified by chemical after-treatment

16.

METHOD FOR PREDICTING NECK-IN PROPERTY OF POLYLACTIDE RESIN

      
Application Number KR2024012485
Publication Number 2025/121591
Status In Force
Filing Date 2024-08-22
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Cho, Jeong Hun
  • Park, Junki
  • Lee, Daewoong
  • Kim, Sehoon
  • Lee, Myunghan
  • Oh, Wan Kyu

Abstract

The present invention relates to a method for predicting or evaluating the neck-in property of a film produced from a polylactide resin. This method is simple and highly predictive, and thus can replace actual measurement methods. Therefore, the method makes it possible determine the film properties of a new structure in advance.

IPC Classes  ?

17.

POLYLACTIDE RESIN COMPOSITION

      
Application Number KR2024012974
Publication Number 2025/121595
Status In Force
Filing Date 2024-08-30
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Cho, Jeong Hun
  • Kim, Sehoon
  • Oh, Wan Kyu

Abstract

The polylactide resin composition according to the present invention improves the neck-in phenomenon by controlling the level of optical isomers in polylactic acid and the usage of compounds having epoxy groups.

IPC Classes  ?

  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical
  • C08L 25/14 - Copolymers of styrene with unsaturated esters

18.

METHOD FOR PRODUCING ACRYLIC ACID

      
Application Number KR2024018911
Publication Number 2025/121766
Status In Force
Filing Date 2024-11-26
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jung, Dabin
  • Shin, Daeyoung
  • Kim, Mi Kyung
  • Jeong, Hoiin
  • Im, Yong O
  • Lee, Jiyoung
  • Kang, Tae Hun
  • Kim, Hyunji
  • Kim, Seungik
  • Lee, Jongheon

Abstract

The present invention relates to a method for producing acrylic acid. Specifically, the present invention relates to a method for producing acrylic acid, comprising a method for controlling a reaction temperature at which the yield of acrylic acid is maintained according to the progress of a reaction.

IPC Classes  ?

  • C07C 51/377 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groupsPreparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by hydrogenolysis of functional groups
  • C07C 57/04 - Acrylic acidMethacrylic acid

19.

POLYALKYLENE CARBONATE-BASED RESIN AND METHOD FOR PRODUCING SAME

      
Application Number KR2024019235
Publication Number 2025/121791
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lim, Seo Yeon
  • Shin, Bo Ra
  • Kim, Sang Woo
  • Park, No Jin
  • Seo, Joon Sik

Abstract

The present invention relates to a polyalkylene carbonate-based resin having excellent thermal stability and a method for preparing same, and provides a polyalkylene carbonate-based resin and a method for preparing same, the resin comprising: a repeating unit represented by chemical formula 1; a repeating unit represented by chemical formula 2; and an organic acid anhydride-derived unit, wherein a peak is present in the region of 6.3 ppm to 6.7 ppm in the 1H NMR spectrum.

IPC Classes  ?

  • C08G 64/34 - General preparatory processes using carbon dioxide and cyclic ethers
  • C08L 69/00 - Compositions of polycarbonatesCompositions of derivatives of polycarbonates
  • C08K 5/00 - Use of organic ingredients
  • C08G 65/26 - Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds

20.

METHOD AND APPARATUS FOR REGENERATION OF FIXED BED CATALYTIC REACTOR

      
Application Number KR2024019591
Publication Number 2025/121838
Status In Force
Filing Date 2024-12-03
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Shin, Daeyoung
  • Kim, Mi Kyung
  • Jeong, Hoiin
  • Im, Yong O
  • Jung, Dabin
  • Lee, Jiyoung
  • Kang, Tae Hun
  • Kim, Hyunji
  • Kim, Seungik
  • Lee, Jongheon

Abstract

The present invention relates to a method and an apparatus for the regeneration of a fixed bed catalytic reactor, and more specifically, to a method and an apparatus for the regeneration of a catalyst during the production of acrylic acid from lactic acid.

IPC Classes  ?

  • B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
  • B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds
  • B01J 38/04 - Gas or vapour treatingTreating by using liquids vaporisable upon contacting spent catalyst
  • C07C 51/377 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groupsPreparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by hydrogenolysis of functional groups
  • C07C 57/04 - Acrylic acidMethacrylic acid

21.

BIODEGRADABLE COMPOSITION AND BIODEGRADABLE FILM

      
Application Number KR2024019935
Publication Number 2025/121937
Status In Force
Filing Date 2024-12-06
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Je, Hwaheon
  • Shim, Hong Shik
  • Park, Hyunwoo
  • Moon, Jungmi
  • Kim, Hyunju
  • Yun, Haesung
  • Jung, Jin Young

Abstract

The present invention provides: a biodegradable composition comprising polybutylene adipate terephthalate and thermoplastic starch and having a predetermined specific recovery area; and a biodegradable film.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • C08G 63/91 - Polymers modified by chemical after-treatment
  • C08J 5/18 - Manufacture of films or sheets

22.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND ELECTROCHEMICAL DEVICE COMPRISING SAME

      
Application Number KR2024020002
Publication Number 2025/121959
Status In Force
Filing Date 2024-12-06
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Joo-Sung
  • Kim, Kyeong-Rak
  • Kim, Jin-Woo
  • Park, Je-Seob

Abstract

The present invention provides a separator for an electrochemical device and an electrochemical device comprising same, wherein lifespan characteristics are improved by obtaining adhesion between the separator and an electrode, a low-resistance electrode adhesive layer is achieved, and electrolyte wettability can be improved. The separator for an electrochemical device according to an embodiment of the present invention comprises: an olefin polymer porous support; an inorganic hybrid porous layer formed on at least one surface of the olefin polymer porous support; and an electrode adhesive layer formed on one surface of the inorganic hybrid porous layer, the one surface of the inorganic hybrid porous layer not being in contact with the olefin polymer porous support, wherein the electrode adhesive layer includes at least one adhesive portion and at least one uncoated portion on which the adhesive portion is not formed, the total coverage of the adhesive portion is 20-60% of the total area of the inorganic hybrid porous layer, and the minor axis length of the adhesive portion is at most twice the thickness of the separator.

IPC Classes  ?

  • H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
  • H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material
  • H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
  • H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
  • H01M 50/417 - Polyolefins
  • H01M 10/052 - Li-accumulators

23.

CATALYST FOR PREPARING CARBON NANOTUBES AND METHOD FOR PREPARING CATALYST FOR PREPARING CARBON NANOTUBES

      
Application Number 18847182
Status Pending
Filing Date 2023-11-03
First Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Hun Min
  • Jang, Hyung Sik
  • Kang, Hyun Joon
  • Kim, Se Hyun

Abstract

A catalyst for preparing carbon nanotubes where a catalyst component is supported on a support coated with carbon, and a method for preparing the catalyst is described.

IPC Classes  ?

24.

Positive Electrode Active Material, Method of Preparing the Same, And Positive Electrode and Lithium Secondary Battery Which Include the Positive Electrode Active Material

      
Application Number 18279533
Status Pending
Filing Date 2022-03-04
First Publication Date 2025-06-12
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Kim, Won Tae
  • Lee, June Woo
  • Ha, Seoung Chul
  • Lim, Young Geun
  • Jung, Da Seal
  • Choi, So Jeong

Abstract

A positive electrode active material and a method of preparing the same are disclosed herein. In some embodiments, a positive electrode active material includes a lithium composite transition metal oxide, and a coating layer formed on a surface of the lithium composite transition metal oxide includes titanium (Ti) and boron (B), wherein Ti is present in an amount of 300 ppm to 800 ppm and B is present in an amount of 500 ppm to 1,000 ppm based on a total weight of the positive electrode active material.

IPC Classes  ?

  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/02 - Electrodes composed of, or comprising, active material
  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 10/052 - Li-accumulators

25.

REACTOR-CLEANING METHOD AND SYSTEM

      
Application Number KR2024009461
Publication Number 2025/121578
Status In Force
Filing Date 2024-07-04
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Moon Sub
  • Lee, Jeong Seok
  • Pak, Geun Tae

Abstract

The present invention relates to a reactor-cleaning method and system and, more specifically, to a cleaning method and system which are capable of effectively and quickly cleaning a polymer that has been fouled in a reactor and a peripheral device by operating one or more heating devices, and preventing pipe plugging due to melted polymers in a cleaning solvent that is transferred after cleaning.

IPC Classes  ?

  • B08B 3/10 - Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
  • B08B 3/08 - Cleaning involving contact with liquid the liquid having chemical or dissolving effect
  • B08B 9/08 - Cleaning of containers, e.g. tanks

26.

POSITIVE ELECTRODE ACTIVE MATERIAL PRECURSOR, METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL PRECURSOR, POSITIVE ELECTRODE ACTIVE MATERIAL, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE ACTIVE MATERIAL

      
Application Number KR2024017322
Publication Number 2025/121689
Status In Force
Filing Date 2024-11-05
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Jun Gil
  • Kim, Won Tae
  • Lim, Young Geun
  • Kim, Ju Hyun
  • Won, Jae Hee

Abstract

The present invention relates to a positive electrode active material precursor having high density, a method for manufacturing a positive electrode active material precursor, a positive electrode active material having high density, and a method for manufacturing a positive electrode active material. The present invention provides a positive electrode active material precursor, a method for manufacturing same, a positive electrode active material manufactured using same, and a method for manufacturing a positive electrode active material using same, wherein the positive electrode active material precursor comprises a manganese-nickel-based hydroxide containing manganese and nickel, the manganese-nickel-based hydroxide including: a porous core part (A); a first shell part (A1) formed on the core part; and a porous second shell part (A2) formed on the first shell part, first shell part (A1) having a thickness satisfying the formula 1 described in this specification, and the precursor has a tap density of 1.75g/cm3to 2.0g/cm3and a BET specific surface area of 18m2/g to 25m2/g.

IPC Classes  ?

  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • C01G 53/00 - Compounds of nickel
  • H01M 4/02 - Electrodes composed of, or comprising, active material

27.

CURRENT COLLECTOR, ELECTRODE AND LITHIUM SECONDARY BATTERY

      
Application Number KR2024019315
Publication Number 2025/121796
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ko, Kyung Moon
  • Hong, Ja Min
  • Jung, Soon Hwa
  • Lee, Seung Ho

Abstract

The present invention relates to a current collector, an electrode comprising same, and a secondary battery, the current collector comprising a primer layer that includes a conductive material, a binder and a thickener, wherein the conductive material is a multi-walled carbon nanotubes having a BET specific surface area of at least 170 m2/g, and thus the present invention has excellent adhesion with an electrode active material layer, low interfacial resistance, and excellent scratch resistance.

IPC Classes  ?

28.

COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2024019816
Publication Number 2025/121901
Status In Force
Filing Date 2024-12-05
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Hanna
  • Park, Jongjin
  • Yoon, Jung Min
  • Lee, Jae Tak
  • Han, Su Jin
  • Heo, Dong Uk
  • Hong, Sung Kil

Abstract

The present specification provides a compound of chemical formula 1 and an organic light-emitting device comprising same. Specifically, the organic light-emitting device comprises: a first electrode; a second electrode provided to face the first electrode; and one or more organic layers provided between the first electrode and the second electrode, wherein one or more of the organic layers comprise the compound of chemical formula 1.

IPC Classes  ?

  • C07D 405/10 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 405/04 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings directly linked by a ring-member-to-ring- member bond
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • H10K 85/60 - Organic compounds having low molecular weight
  • H10K 50/16 - Electron transporting layers
  • H10K 50/17 - Carrier injection layers

29.

METHOD AND APPARATUS FOR PRODUCING ACRYLIC ACID

      
Application Number KR2024019883
Publication Number 2025/121919
Status In Force
Filing Date 2024-12-05
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jung, Dabin
  • Shin, Daeyoung
  • Kim, Mi Kyung
  • Jeong, Hoiin
  • Im, Yong O
  • Lee, Jiyoung
  • Kang, Tae Hun
  • Kim, Hyunji
  • Kim, Seungik
  • Lee, Jongheon

Abstract

The present invention relates to a method and an apparatus for producing acrylic acid. Specifically, the present invention relates to a method for producing acrylic acid and an apparatus therefor, comprising a two-stage reactor that enables an acrylic acid yield to reach a target level.

IPC Classes  ?

  • C07C 51/377 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groupsPreparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by hydrogenolysis of functional groups
  • C07C 57/04 - Acrylic acidMethacrylic acid
  • B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
  • B01J 8/02 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds

30.

BIODEGRADABLE COMPOSITION AND BIODEGRADABLE FILM

      
Application Number KR2024019936
Publication Number 2025/121938
Status In Force
Filing Date 2024-12-06
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Shim, Hong Shik
  • Park, Hyunwoo
  • Je, Hwaheon
  • Kim, Hyunju
  • Yun, Haesung
  • Lee, Myunghan
  • Moon, Jungmi

Abstract

The present invention provides: a biodegradable composition comprising a polybutylene adipate terephthalate and a polybutylene adipate terephthalate in which a maleic acid is ester-bonded to a terminal hydroxyl group; and a biodegradable film.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • C08G 63/91 - Polymers modified by chemical after-treatment
  • C08J 5/18 - Manufacture of films or sheets

31.

BIODEGRADABLE COMPOSITION AND BIODEGRADABLE FILM

      
Application Number KR2024019938
Publication Number 2025/121940
Status In Force
Filing Date 2024-12-06
Publication Date 2025-06-12
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Je, Hwaheon
  • Shim, Hong Shik
  • Yun, Haesung
  • Park, Hyunwoo
  • Kim, Hyunju
  • Kwak, Sooyoung
  • Moon, Jungmi
  • Jung, Jin Young

Abstract

The present invention provides a biodegradable composition comprising polybutylene adipate terephthalate, with a maleic acid bonded to a terminal hydroxyl group thereof through an ester linkage, and having a predetermined peak area ratio, and a biodegradable film.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 3/02 - StarchDegradation products thereof, e.g. dextrin
  • C08G 63/91 - Polymers modified by chemical after-treatment
  • C08J 5/18 - Manufacture of films or sheets

32.

Polyethylene Resin Having Excellent Thermal Resistance

      
Application Number 18838826
Status Pending
Filing Date 2023-10-16
First Publication Date 2025-06-05
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Sung, Yutaek
  • Kim, Joongsoo
  • Lee, Hyojoon

Abstract

Provided is a polyethylene resin satisfying the following conditions 1) to 3), and being excellent in both mechanical properties and thermal resistance: 1) an inflection point exists in the range of 5.0≤log M≤6.0 in a GPC graph having an x-axis of log M and a y-axis of dW/dlog M; 2) a tie chain probability at 110 to 120° C. is more than 2.5% 3.5% or less; and 3) a tie chain probability at 120 to 130° C. is more than 6.3%.

IPC Classes  ?

  • C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers

33.

Preparation Method for Super Absorbent Polymer

      
Application Number 18842199
Status Pending
Filing Date 2023-07-17
First Publication Date 2025-06-05
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Seul Ah
  • Park, Sung Soo
  • Ju, Jin Hyuck
  • Lee, Junwye
  • Ahn, Taebin
  • Kim, Tae Yun
  • Park, Dong Hoon
  • Shin, Kwangin
  • Woo, Heechang
  • Baek, Seokhyeon
  • Han, Sangwon
  • Jee, Min Goo

Abstract

A preparation method for a super absorbent polymer is provided. The disclosed method provides is capable of improving the absorption rate and overall absorption properties of the super absorbent polymer. The disclosed method is also capable of effectively reducing extractable components and residual monomers by introducing a radical reaction system in a pulverization process.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • B01J 20/32 - Impregnating or coating

34.

METHOD FOR PRODUCING VINYL CHLORIDE-BASED COPOLYMER

      
Application Number 18843649
Status Pending
Filing Date 2023-10-25
First Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Jae Hyun
  • Ahn, Seong Yong
  • Lee, Hyun Min
  • Lim, Joong Chul
  • Paik, Hyun Jong
  • Cho, Hong Yul
  • Kim, Dong Woo
  • Jeong, Seok Hyeon

Abstract

A method for producing a vinyl chloride-based copolymer by copolymerizing a polymerizable monomer with a vinyl chloride-based polymer, wherein the method is capable of producing a vinyl chloride-based copolymer with high heat resistance by optimizing the ratio between the repeating units in the chain of polyvinyl chloride and a reducing agent, monomer, catalyst, and ligand.

IPC Classes  ?

35.

THERMOSETTING RESIN COMPOSITION, AND INSULATING FILM AND PRINTED CIRCUIT BOARD COMPRISING SAME

      
Application Number KR2024015938
Publication Number 2025/116283
Status In Force
Filing Date 2024-10-21
Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Jun Wuk
  • Kim, Bokyung
  • Kim, Tae Soon
  • Park, Daseul
  • Yoon, Youngsik
  • Lee, Jonghwa
  • Choi, Byung Ju
  • Hwang, Seongmin

Abstract

The present specification relates to a thermosetting resin composition, and an insulating film and a printed circuit board comprising same, the composition comprising an epoxy resin as a curable resin, a cyanate ester resin and a phenol resin as curing agents, and silica having an average particle diameter of 0.1 μm inclusive to 0.2 μm exclusive as an inorganic filler. The thermosetting resin composition according to the embodiment can ensure excellent curing properties and superb high-temperature reliability.

IPC Classes  ?

  • C08L 63/00 - Compositions of epoxy resinsCompositions of derivatives of epoxy resins
  • C08G 59/40 - Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups characterised by the curing agents used
  • C08G 59/62 - Alcohols or phenols
  • C08L 35/06 - Copolymers with vinyl aromatic monomers
  • C08K 3/36 - Silica
  • C08J 5/18 - Manufacture of films or sheets
  • H05K 1/03 - Use of materials for the substrate

36.

PHYSICAL PROPERTY DATA ACQUISITION DEVICE AND PHYSICAL PROPERTY DATA ACQUISITION METHOD

      
Application Number KR2024018138
Publication Number 2025/116381
Status In Force
Filing Date 2024-11-18
Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Hyeong Seok
  • Oh, Soo Seok
  • Ahn, Deuk Hwan
  • Park, Yeon Jae
  • Kim, Jun Young
  • Park, Si Young

Abstract

A physical property data acquisition device disclosed in the present document comprises: a communication unit for receiving a plurality of pieces of numerical measurement data; and a control unit for generating preprocessed data by adding an index array to the plurality of pieces of numerical measurement data, inputting the preprocessed data to a regression model for deriving physical property data, and acquiring the physical property data as an output value on the basis of hyperparameters set in the regression model.

IPC Classes  ?

  • G16C 20/70 - Machine learning, data mining or chemometrics
  • G16C 20/30 - Prediction of properties of chemical compounds, compositions or mixtures
  • G06N 20/00 - Machine learning

37.

CATHODE ACTIVE MATERIAL, AND CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

      
Application Number KR2024018293
Publication Number 2025/116400
Status In Force
Filing Date 2024-11-19
Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ryu, Hyeon Mo
  • Jeong, Jin Hoo
  • Jeong, Myung Gi
  • Hwang, Joo Kyoung
  • Gu, Ye Hyeon
  • Lee, Ji Young
  • Heo, Kook Jin
  • Kim, Kyung Gu

Abstract

The present invention relates to a cathode active material in a single particle form, the cathode active material comprising: a lithium composite transition metal oxide in a single particle form that has a layered structure; and a coating part containing cobalt formed on the lithium composite transition metal oxide in a single particle form, wherein the cathode active material satisfies expression 1 or expression 2 described in the present specification. Furthermore, the present invention relates to a cathode and a lithium secondary battery comprising the cathode active material.

IPC Classes  ?

  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 10/052 - Li-accumulators
  • H01M 4/02 - Electrodes composed of, or comprising, active material

38.

IMAGE PROCESSING DEVICE AND OPERATING METHOD THEREOF

      
Application Number KR2024018512
Publication Number 2025/116417
Status In Force
Filing Date 2024-11-21
Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Yern Seung
  • Jang, Jae Wun
  • Jang, Ho Yeok
  • Pyo, Min Kyeong
  • Son, Byung Joo
  • Kim, Deok Jin
  • Kim, Dong Chan

Abstract

The image processing device according to one embodiment disclosed in the present document may comprise: an image acquisition unit for acquiring active material images of a plurality of active materials; an image generation unit for generating, on the basis of the active material image, at least one among a binary image in which active materials and impurities are separated, a binary image classified according to particle type, a binary image in which impurities or surface cracks of the active materials are separated, or a combination thereof; and an image segmentation unit for segmenting the plurality of active materials included in the active material image to acquire a segmented image.

IPC Classes  ?

  • G06T 7/11 - Region-based segmentation
  • G06T 7/13 - Edge detection
  • G06T 5/60 - Image enhancement or restoration using machine learning, e.g. neural networks
  • G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume
  • G06N 3/045 - Combinations of networks
  • G06N 3/08 - Learning methods
  • G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
  • G06T 7/00 - Image analysis

39.

NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME

      
Application Number KR2024019038
Publication Number 2025/116541
Status In Force
Filing Date 2024-11-27
Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Han, Miyeon
  • Jung, Min Woo
  • Kim, Hoon Jun
  • Cho, Hye Min
  • Heo, Jeonghoe
  • Park, Hyungjin
  • Oh, Joongsuk
  • Lee, Hojung

Abstract

The present invention provides a novel compound and an organic light emitting device using same.

IPC Classes  ?

  • C07D 409/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • H10K 85/60 - Organic compounds having low molecular weight
  • H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials

40.

SYSTEMS AND PROCESSES FOR CATALYTIC CONVERSION OF C1-C5 ALCOHOLS TO C2-C5 OLEFIN MIXTURES

      
Application Number US2024056043
Publication Number 2025/117208
Status In Force
Filing Date 2024-11-15
Publication Date 2025-06-05
Owner
  • GEVO, INC. (USA)
  • LG CHEM, LTD. (Republic of Korea)
Inventor Smith, Jonathan

Abstract

152515255) carried out in a reactor using a catalyst that includes a zeolite doped with at least one or more metal dopants. Systems for carrying out these processes are also provided.

IPC Classes  ?

  • C07C 1/20 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms
  • C07C 1/24 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms by elimination of water
  • C07C 11/08 - Alkenes with four carbon atoms
  • C07C 11/06 - Propene
  • C07C 11/04 - Ethene

41.

CATALYST FOR MANUFACTURING CARBON NANOTUBES

      
Application Number 18841291
Status Pending
Filing Date 2023-10-12
First Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Eui Tae
  • Lee, Eun Jeong
  • Kim, Ki Hwan
  • Oh, Eu Gene
  • Park, Sung Eun
  • Lee, Geun Sung

Abstract

A catalyst for manufacturing carbon nanotubes includes a support, a first active layer formed on a surface of the support, and a second active layer formed on a surface of the first active layer, wherein the first active layer includes cobalt oxide and the second active layer includes aluminum oxide. A method for manufacturing carbon nanotubes is also described, using the catalyst. The catalyst of the present invention enables more uniform and efficient synthesis of small-diameter carbon nanotubes.

IPC Classes  ?

  • B01J 23/75 - Cobalt
  • B01J 21/02 - Boron or aluminiumOxides or hydroxides thereof
  • B01J 35/30 - Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
  • B01J 35/40 - Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
  • B01J 35/61 - Surface area
  • C01B 32/162 - Preparation characterised by catalysts

42.

Antibacterial Composition

      
Application Number 18842087
Status Pending
Filing Date 2023-10-20
First Publication Date 2025-06-05
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Seungmo
  • Baek, Leehyeon
  • Lee, Jeong Yun
  • Hur, Yoon Hyung
  • Lee, Jiyoung
  • Choi, Doowhan

Abstract

Provided are an antibacterial composition including a compound represented by Chemical Formula 1, and the antibacterial composition has improved thermal stability and antibacterial activity: Provided are an antibacterial composition including a compound represented by Chemical Formula 1, and the antibacterial composition has improved thermal stability and antibacterial activity: Provided are an antibacterial composition including a compound represented by Chemical Formula 1, and the antibacterial composition has improved thermal stability and antibacterial activity: wherein all the variables are described herein.

IPC Classes  ?

  • A01N 33/12 - Quaternary ammonium compounds
  • A01N 47/02 - Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having no bond to a nitrogen atom
  • A01P 1/00 - DisinfectantsAntimicrobial compounds or mixtures thereof
  • A01P 3/00 - Fungicides

43.

ORGANIC LIGHT-EMITTING DEVICE

      
Application Number 18842775
Status Pending
Filing Date 2023-10-23
First Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Ji Young
  • Geum, Sujeong
  • Cho, Woo Jin
  • Cha, Yongbum
  • Ha, Jae Seung
  • Hwang, Sunghyun
  • Lee, Woochul

Abstract

An organic light-emitting device including a compound of Chemical Formula 1 and a compound of Chemical Formula 2: An organic light-emitting device including a compound of Chemical Formula 1 and a compound of Chemical Formula 2: An organic light-emitting device including a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: X1 is O or S; Cy1 is a substituted or unsubstituted dibenzofuran or a substituted or unsubstituted dibenzothiophene; Ar1 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; and the other substituents are as defined in the specification; An organic light-emitting device including a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: X1 is O or S; Cy1 is a substituted or unsubstituted dibenzofuran or a substituted or unsubstituted dibenzothiophene; Ar1 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; and the other substituents are as defined in the specification; An organic light-emitting device including a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: X1 is O or S; Cy1 is a substituted or unsubstituted dibenzofuran or a substituted or unsubstituted dibenzothiophene; Ar1 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; and the other substituents are as defined in the specification; where Ar2 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; Ar3 is Chemical Formula A, and Z10 or Z11 of Chemical Formula A is linked to L2 of Chemical Formula 2: An organic light-emitting device including a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: X1 is O or S; Cy1 is a substituted or unsubstituted dibenzofuran or a substituted or unsubstituted dibenzothiophene; Ar1 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; and the other substituents are as defined in the specification; where Ar2 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; Ar3 is Chemical Formula A, and Z10 or Z11 of Chemical Formula A is linked to L2 of Chemical Formula 2: An organic light-emitting device including a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: X1 is O or S; Cy1 is a substituted or unsubstituted dibenzofuran or a substituted or unsubstituted dibenzothiophene; Ar1 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; and the other substituents are as defined in the specification; where Ar2 is a substituted or unsubstituted aryl group or a substituted or unsubstituted heteroaryl group; Ar3 is Chemical Formula A, and Z10 or Z11 of Chemical Formula A is linked to L2 of Chemical Formula 2: where X2 is O or S; Cy2 is a substituted or unsubstituted benzene or a substituted or unsubstituted naphthalene; and the other substituents are as defined in the specification.

IPC Classes  ?

  • H10K 50/12 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
  • H10K 50/15 - Hole transporting layers
  • H10K 50/16 - Electron transporting layers
  • H10K 50/17 - Carrier injection layers
  • H10K 50/18 - Carrier blocking layers
  • H10K 85/60 - Organic compounds having low molecular weight
  • H10K 101/00 - Properties of the organic materials covered by group

44.

AMORPHOUS MELANOCORTIN-4 RECEPTOR AGONIST

      
Application Number 18251074
Status Pending
Filing Date 2021-10-29
First Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ham, Jin Ok
  • Lee, Ho Yeon
  • Kim, Ji Yoon
  • Kim, Sung Won
  • Chun, Seul Ah
  • Lee, Sang Dae
  • Park, Jong Won

Abstract

The present invention relates to an amorphous compound represented by formula 1, a method for preparing the same, and a pharmaceutical composition comprising the same. The amorphous compound represented by formula 1 of the present invention may be characterized by XRD patterns, DSC profiles, and/or TGA profiles.

IPC Classes  ?

  • C07D 207/16 - Carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals
  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol

45.

APPARATUS FOR PRODUCING OLIGOMERS

      
Application Number KR2024013402
Publication Number 2025/116225
Status In Force
Filing Date 2024-09-05
Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Song, Jong Hun
  • Lee, Jeong Seok
  • Baek, Se Won
  • Hwang, Moon Sub
  • Pak, Geun Tae

Abstract

The present invention provides an apparatus for producing oligomers, the apparatus comprising: a reactor, having an upper gas region and a lower liquid region, for carrying out oligomerization reactions by receiving ethylene gas and a solvent into the liquid region; an overflow pipe, provided on the outer wall of the reactor and connected at the height corresponding to the boundary of the gas and liquid regions of the reactor, for discharging a liquid stream containing oligomer product; a gas-liquid separator, connected to the overflow pipe, for separating gas from the discharged liquid stream; a liquid-level measurement device provided in the gas-liquid separator; and a liquid discharge pipe, connected at the bottom of the gas-liquid separator, for discharging the gas-separated liquid stream.

IPC Classes  ?

  • B01J 8/00 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes
  • B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
  • C07C 2/08 - Catalytic processes
  • C07C 11/107 - Alkenes with six carbon atoms

46.

IMAGE PROCESSING DEVICE AND OPERATING METHOD THEREOF

      
Application Number KR2024018514
Publication Number 2025/116418
Status In Force
Filing Date 2024-11-21
Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Pyo, Min Kyeong
  • Kim, Yern Seung
  • Jang, Jae Wun
  • Hwang, Du Sun
  • Kim, Su Jeong
  • Kim, Sang Hun
  • Park, Hyun Ah
  • Jung, Won Sig
  • Kim, Nam Il
  • Chang, Seok Il
  • Hwang, Byung Hyun

Abstract

The image processing device according to one embodiment disclosed in the present document may comprise: an image acquisition unit for acquiring active material images of a plurality of active materials; an image segmentation unit for segmenting the plurality of active materials included in the active material image to acquire a segmented image; and an image generation unit for inputting the active material image into an artificial intelligence model to generate at least one among a binary image in which the active material and surface cracks of the active material are separated, a pore binary image representing pore characteristics of the active material on the basis of the segmented image, or a combination thereof.

IPC Classes  ?

  • G06T 7/11 - Region-based segmentation
  • G06T 7/13 - Edge detection
  • G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
  • G06V 10/774 - Generating sets of training patternsBootstrap methods, e.g. bagging or boosting
  • G06N 3/08 - Learning methods
  • G06T 5/20 - Image enhancement or restoration using local operators
  • G06T 7/60 - Analysis of geometric attributes
  • G06T 7/136 - SegmentationEdge detection involving thresholding

47.

METHOD FOR PREPARING POSITIVE ELECTRODE ACTIVE MATERIAL

      
Application Number KR2024019216
Publication Number 2025/116584
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Yoon, Tae Hun
  • Yoon, Seok Hyun
  • Jeong, Han Nah

Abstract

00) preparing nickel oxide by heat-treating nickel hydroxide at a temperature of greater than 400 °C and less than 600 °C; (A) dry-mixing the nickel oxide, a cobalt-containing raw material, and a manganese-containing raw material, and heat-treating the mixture at a temperature of greater than 400 °C and less than 600 °C to prepare a composite transition metal oxide; (B) mixing the composite transition metal oxide and a lithium-containing raw material to prepare a mixture; and (C) calcining the mixture to prepare a lithium composite transition metal oxide.

IPC Classes  ?

  • C01G 53/00 - Compounds of nickel
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/02 - Electrodes composed of, or comprising, active material

48.

METHOD FOR PREPARING SUPERABSORBENT POLYMER

      
Application Number KR2024019298
Publication Number 2025/116614
Status In Force
Filing Date 2024-11-29
Publication Date 2025-06-05
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Kihoon
  • Do, Yun Kyung
  • Nam, Hyemi
  • Lee, Hyemin

Abstract

The present invention relates to a method for preparing a superabsorbent polymer and, more specifically, to a method for preparing a superabsorbent polymer, which secures an absorption rate by increasing the amount of a chemical foaming agent used in a polymerization step, while at the same time optimally controlling process conditions to prevent loss of a chemically formed pore structure resulting from the increased amount of the foaming agent during subsequent chopping and pulverizing processes, thereby producing a superabsorbent polymer exhibiting an excellent absorption rate and minimizing the generation of fine dust.

IPC Classes  ?

  • C08J 9/20 - Making expandable particles by suspension polymerisation in the presence of the blowing agent
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
  • C08J 3/12 - Powdering or granulating
  • C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
  • C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
  • C08F 20/06 - Acrylic acidMethacrylic acidMetal salts or ammonium salts thereof
  • C08K 9/10 - Encapsulated ingredients
  • C08K 5/1515 - Three-membered rings

49.

NOVEL COMPOUND AND METHOD FOR PREPARING SAME

      
Application Number KR2024016483
Publication Number 2025/110511
Status In Force
Filing Date 2024-10-25
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Yong Jae
  • Jang, Jae Kwon
  • Park, Do Young
  • Lee, Ju Yeol
  • Lee, Tae Hee

Abstract

The present invention provides a novel compound, which is a modifier material useful for modifying rubber, particularly a polymer including a repeating unit derived from a conjugated diene-based monomer, and a method for preparing same.

IPC Classes  ?

  • C07F 7/18 - Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
  • C08C 19/25 - Incorporating silicon atoms into the molecule
  • C08C 19/22 - Incorporating nitrogen atoms into the molecule

50.

INSULATION FILM AND PRINTED CIRCUIT BOARD COMPRISING SAME

      
Application Number KR2024017001
Publication Number 2025/110551
Status In Force
Filing Date 2024-11-01
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Bokyung
  • Park, Jun Wuk
  • Kim, Tae Soon
  • Yoon, Youngsik
  • Hwang, Seongmin

Abstract

The present specification provides insulation film and a printed circuit board comprising same, the insulation film comprising: a first layer comprising epoxy-based resin, a cyanate ester-based resin, and an inorganic filler surface-treated with phenylamino silane; and a second layer comprising epoxy-based resin, phenol-based resin, and an inorganic filler surface-treated with epoxy silane.

IPC Classes  ?

  • H05K 1/03 - Use of materials for the substrate
  • H05K 3/38 - Improvement of the adhesion between the insulating substrate and the metal

51.

NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME

      
Application Number KR2024017934
Publication Number 2025/110612
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Han, Su Jin
  • Heo, Dong Uk
  • Lee, Jae Tak
  • Yoon, Jung Min
  • Park, Jongjin
  • Kim, Hanna
  • Hong, Sung Kil
  • Yun, Heekyung

Abstract

The present invention provides a novel compound and an organic light emitting device using same.

IPC Classes  ?

  • C07D 251/24 - Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to three ring carbon atoms
  • C07D 403/14 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 409/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
  • C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 401/10 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 213/06 - Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
  • C07D 239/26 - Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
  • C07D 403/10 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 401/14 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings

52.

ACRYLIC COPOLYMER, RESIN COMPOSITION, AND MOLDED ARTICLE

      
Application Number KR2024018053
Publication Number 2025/110632
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Sung Eun
  • Yoo, Ki Hyun
  • Han, Sang Hoon
  • Moon, Jun Soo

Abstract

The present invention relates to an acrylic copolymer, a resin composition same, and a biodegradable molded article, wherein the acrylic copolymer can enhance mechanical properties of a resin composition by improving compatibility between different kinds of biodegradable resins when applied as a chemical compatibilizer for improving compatibility between different kinds of biodegradable resins.

IPC Classes  ?

  • C08F 220/14 - Methyl esters
  • C08F 220/32 - Esters containing oxygen in addition to the carboxy oxygen containing epoxy radicals
  • C08F 220/18 - Esters of monohydric alcohols or phenols of phenols or of alcohols containing two or more carbon atoms with acrylic or methacrylic acids
  • C08L 101/16 - Compositions of unspecified macromolecular compounds the macromolecular compounds being biodegradable
  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 67/04 - Polyesters derived from hydroxy carboxylic acids, e.g. lactones
  • C08L 33/06 - Homopolymers or copolymers of esters of esters containing only carbon, hydrogen, and oxygen, the oxygen atom being present only as part of the carboxyl radical

53.

FOREIGN SUBSTANCE DETECTION DEVICE FOR RECYCLED PLASTIC MATERIAL

      
Application Number KR2024018527
Publication Number 2025/110759
Status In Force
Filing Date 2024-11-21
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Moon, Jae Young
  • Oh, Hyun Taek
  • Bae, Sung Hak
  • Han, Jung Jin
  • Kim, Do Dam
  • Yun, Seok Jin
  • Ha, Kang Woo

Abstract

The present invention relates to a foreign substance detection device for a recycled plastic material, wherein light is emitted toward a test sample made of a recycled plastic material in a state in which a reflection plate is disposed on the bottom surface of a sample holder on which the test sample is placed, thereby improving the clarity of foreign substances included in the test sample so that the accuracy of foreign substance evaluation can be improved.

IPC Classes  ?

  • G01N 21/88 - Investigating the presence of flaws, defects or contamination
  • G01N 21/94 - Investigating contamination, e.g. dust

54.

SUPER ABSORBENT POLYMER

      
Application Number KR2024018689
Publication Number 2025/110812
Status In Force
Filing Date 2024-11-22
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Sung Soo
  • Shin, Kwang In
  • Woo, Hee Chang
  • Lee, Jun Wye

Abstract

The present invention relates to a super absorbent polymer exhibiting improved absorption rate and absorption performance.

IPC Classes  ?

  • C08J 3/12 - Powdering or granulating
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
  • C08F 20/06 - Acrylic acidMethacrylic acidMetal salts or ammonium salts thereof

55.

NOVEL COMPOUND AND METHOD FOR PREPARING SAME

      
Application Number KR2024016484
Publication Number 2025/110512
Status In Force
Filing Date 2024-10-25
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Ju Yeol
  • Jang, Jae Kwon
  • Park, Do Young
  • Kim, Yong Jae
  • Lee, Tae Hee

Abstract

The present invention provides a novel compound and a method for preparing same, the compound being a denaturizing agent useful in modifying rubber, particularly, a polymer having a repeating unit derived from a conjugated diene-based monomer.

IPC Classes  ?

  • C07F 7/18 - Compounds having one or more C—Si linkages as well as one or more C—O—Si linkages
  • C08C 19/25 - Incorporating silicon atoms into the molecule
  • C08C 19/22 - Incorporating nitrogen atoms into the molecule

56.

RECYCLED RESIN COMPOSITION

      
Application Number KR2024018328
Publication Number 2025/110690
Status In Force
Filing Date 2024-11-20
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Bae, Seon Hyeong
  • Yoo, Je Sun

Abstract

The present invention relates to a resin composition comprising recycled resin, wherein the purpose of the present invention is to prevent problems such as gases or low molecular weight materials such as oligomers originating from the recycled resin accumulating and migrating to an injection-molded product or mold corrosion caused by the mold deposit in the process of injecting the resin composition, by using an appropriate content of antioxidant.

IPC Classes  ?

  • C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
  • C08L 25/12 - Copolymers of styrene with unsaturated nitriles
  • C08K 3/22 - OxidesHydroxides of metals

57.

SUPER ABSORBENT POLYMER

      
Application Number KR2024018688
Publication Number 2025/110811
Status In Force
Filing Date 2024-11-22
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Sung Soo
  • Shin, Kwang In
  • Woo, Hee Chang
  • Lee, Jun Wye

Abstract

The present invention relates to a super absorbent polymer exhibiting improved absorption rate and absorption performance.

IPC Classes  ?

  • C08J 3/12 - Powdering or granulating
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules
  • C08F 20/06 - Acrylic acidMethacrylic acidMetal salts or ammonium salts thereof

58.

NOVEL COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE USING SAME

      
Application Number KR2024096562
Publication Number 2025/110864
Status In Force
Filing Date 2024-11-14
Publication Date 2025-05-30
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Han, Su Jin
  • Heo, Dong Uk
  • Lee, Jae Tak
  • Yoon, Jung Min
  • Park, Jongjin
  • Kim, Hanna
  • Hong, Sung Kil
  • Yun, Heekyung

Abstract

The present invention provides a novel compound and an organic light-emitting device using same.

IPC Classes  ?

  • C07D 251/24 - Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with hydrogen or carbon atoms directly attached to at least one ring carbon atom to three ring carbon atoms
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 409/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
  • C07D 413/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing three or more hetero rings
  • C07D 403/14 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 401/10 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 213/06 - Heterocyclic compounds containing six-membered rings, not condensed with other rings, with one nitrogen atom as the only ring hetero atom and three or more double bonds between ring members or between ring members and non-ring members having three double bonds between ring members or between ring members and non-ring members having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen or carbon atoms directly attached to the ring nitrogen atom containing only hydrogen and carbon atoms in addition to the ring nitrogen atom
  • C07D 239/26 - Heterocyclic compounds containing 1,3-diazine or hydrogenated 1,3-diazine rings not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
  • C07D 403/10 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 417/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and sulfur atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings

59.

PHOTOCURABLE COMPOSITION, COATING LAYER COMPRISING CURED PRODUCT THEREOF, AND PROCESS FILM

      
Application Number 18841093
Status Pending
Filing Date 2022-11-22
First Publication Date 2025-05-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Sang Hwan
  • Kim, Hyun Cheol

Abstract

The present disclosure provides a photocurable composition capable of implementing a coating layer having excellent coating properties and excellent surface quality and thickness uniformity, a coating layer including a cured product of the photocurable composition, and a process film containing the coating layer.

IPC Classes  ?

  • C09D 4/06 - Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups
  • C09D 133/14 - Homopolymers or copolymers of esters of esters containing halogen, nitrogen, sulfur or oxygen atoms in addition to the carboxy oxygen
  • C09D 175/14 - Polyurethanes having carbon-to-carbon unsaturated bonds

60.

Super Absorbent Polymer

      
Application Number 18922611
Status Pending
Filing Date 2024-10-22
First Publication Date 2025-05-29
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Park, Sung Soo
  • Shin, Kwangin
  • Woo, Heechang
  • Lee, Junwye

Abstract

The present disclosure relates to a super absorbent polymer exhibiting an improved absorption rate and improved absorption performance.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • C08F 220/06 - Acrylic acidMethacrylic acidMetal salts or ammonium salts thereof

61.

Super Absorbent Polymer

      
Application Number 18922670
Status Pending
Filing Date 2024-10-22
First Publication Date 2025-05-29
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Park, Sung Soo
  • Shin, Kwangin
  • Woo, Heechang
  • Lee, Junwye

Abstract

The present disclosure relates to a super absorbent polymer exhibiting an improved absorption rate and improved absorption performance.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/30 - Processes for preparing, regenerating or reactivating

62.

Positive Electrode Active Material, Method for Preparing the Same, and Positive Electrode Including the Same

      
Application Number 18713326
Status Pending
Filing Date 2023-05-22
First Publication Date 2025-05-29
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Jung, Won Sig
  • Park, Hyun Ah
  • Lee, Kang Hyeon
  • Choi, Hwan Young
  • Kim, Jong Pil
  • Lee, Eung Ju

Abstract

A single-particle positive electrode active material capable of providing a battery having improved initial resistance and lifespan is provided. A single-particle positive electrode active material has a (cos α)2 value of 0.5 or greater wherein α represents an angle between a long axis of a crystal grain obtained through electron backscatter diffraction (EBSD) analysis and a lithium migration path. A method for preparing the single-particle positive electrode active material and a positive electrode including the same are also provided.

IPC Classes  ?

  • C01G 53/42 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2

63.

Method for Manufacturing Separator, Separator Obtained Therefrom and Electrochemical Device Including the Same

      
Application Number 18837334
Status Pending
Filing Date 2023-02-10
First Publication Date 2025-05-29
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Joo-Sung
  • Jin, Sun-Mi

Abstract

A method for manufacturing a polyolefin separator, includes mixing a polyolefin and a diluting agent; extruding the polyolefin and diluting mixture to prepare a polyolefin composition; molding and orienting the polyolefin composition in the form of a sheet; dipping the oriented sheet in an extraction bath to form a porous membrane; and thermally fixing the porous membrane. The extraction bath includes an organic solvent in its lower layer part and includes water and a surfactant in its upper layer part. Also provided is a separator obtained by the method and an electrochemical device including the separator. The method for manufacturing a polyolefin separator provides a separator having improved wettability with an electrolyte by introducing a surfactant thereto. In addition, it is possible to inhibit defects in appearance caused by water stains and to provide a separator having excellent physical properties.

IPC Classes  ?

64.

SYSTEMS AND PROCESSES FOR CATALYTIC CONVERSION OF C1-C5 ALCOHOLS TO C2-C5 OLEFIN MIXTURES

      
Application Number 18948641
Status Pending
Filing Date 2024-11-15
First Publication Date 2025-05-29
Owner
  • Gevo, Inc. (USA)
  • LG CHEM, LTD. (Republic of Korea)
Inventor Smith, Jonathan

Abstract

Processes for converting one or more C1-C5 linear or branched alcohols to one or more C2-C5 olefins are provided. In one exemplary aspect, the process can be a single stage process for the direct conversion of C1-C5 alcohols to olefinic mixtures (e.g., C2-C5) carried out in a reactor using a catalyst that includes a zeolite doped with at least one or more metal dopants. Systems for carrying out these processes are also provided.

IPC Classes  ?

  • C07C 5/333 - Catalytic processes
  • C07C 7/00 - Purification, separation or stabilisation of hydrocarbonsUse of additives

65.

COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number 18730488
Status Pending
Filing Date 2023-06-20
First Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Seonwoo
  • Ha, Jae Seung
  • Geum, Sujeong
  • Cho, Woo Jin
  • Cha, Yongbum
  • Hwang, Sunghyun
  • Lee, Woochul

Abstract

A compound of Chemical Formula 1: A compound of Chemical Formula 1: A compound of Chemical Formula 1: where at least one of R1 to R3 is -L-Ar1, at least one of the remaining R1 to R3, which are not -L-Ar1, is a substituted or unsubstituted heteroaryl group, and the other and R11 are each independently hydrogen, deuterium, or a substituted or unsubstituted aryl or heteroaryl group, L is a direct bond or a substituted or unsubstituted arylene or heteroarylene group, and Ar1 is Chemical Formula A: A compound of Chemical Formula 1: where at least one of R1 to R3 is -L-Ar1, at least one of the remaining R1 to R3, which are not -L-Ar1, is a substituted or unsubstituted heteroaryl group, and the other and R11 are each independently hydrogen, deuterium, or a substituted or unsubstituted aryl or heteroaryl group, L is a direct bond or a substituted or unsubstituted arylene or heteroarylene group, and Ar1 is Chemical Formula A: A compound of Chemical Formula 1: where at least one of R1 to R3 is -L-Ar1, at least one of the remaining R1 to R3, which are not -L-Ar1, is a substituted or unsubstituted heteroaryl group, and the other and R11 are each independently hydrogen, deuterium, or a substituted or unsubstituted aryl or heteroaryl group, L is a direct bond or a substituted or unsubstituted arylene or heteroarylene group, and Ar1 is Chemical Formula A: where any one of Y1, Y2 and Y7 to Y11 is a moiety bonded to L, and the other substituents are as defined in the specification; and an organic light emitting device including the same. When the compound of Chemical Formula 1 is included in an organic material layer of an organic light emitting device, the device exhibits lower driving voltage, and improved light efficiency and service life.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • C07D 405/10 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 407/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 409/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
  • H10K 50/12 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants

66.

Resin and Method for Preparing the Same

      
Application Number 18837272
Status Pending
Filing Date 2023-10-06
First Publication Date 2025-05-22
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Choi, Il Hwan
  • Kim, Kyeongmun
  • Yoo, Seungmin
  • Yim, Hye Jin
  • Lee, Seungmook
  • Baek, Hyeonwoo
  • Bae, Jaesoon

Abstract

Provided are a resin including a unit of Chemical Formula 1 and a unit of Chemical Formula 2, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition, Provided are a resin including a unit of Chemical Formula 1 and a unit of Chemical Formula 2, a method for preparing the same, a resin composition including the same, and a molded article including the resin composition, wherein all the variables are described herein.

IPC Classes  ?

  • C08G 64/16 - Aliphatic-aromatic or araliphatic polycarbonates
  • C08G 64/06 - Aromatic polycarbonates not containing aliphatic unsaturation
  • C08G 64/30 - General preparatory processes using carbonates
  • G02B 1/04 - Optical elements characterised by the material of which they are madeOptical coatings for optical elements made of organic materials, e.g. plastics

67.

Super Absorbent Polymer and Preparation Method Thereof

      
Application Number 18837693
Status Pending
Filing Date 2023-11-06
First Publication Date 2025-05-22
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Yoon, Hyungki
  • Ju, Jin Hyuck
  • Shin, Kwangin
  • Ahn, Taebin

Abstract

A super absorbent polymer having excellent properties including centrifuge retention capacity, absorption under pressure, vortex time, 1 min tap water free absorbency, and rewet properties. Thus, the super absorbent polymer can exhibit high absorption performance and excellent use feel when used in hygiene products such as diapers, and the like. A method for preparing the same is also provided.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/28 - Solid sorbent compositions or filter aid compositionsSorbents for chromatographyProcesses for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • B01J 20/32 - Impregnating or coating

68.

METHOD FOR PURIFYING ISOPROPYL ALCOHOL

      
Application Number KR2024017591
Publication Number 2025/105772
Status In Force
Filing Date 2024-11-08
Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Sung June
  • Lee, Sung Kyu
  • Jang, Kyung Soo
  • Lee, Moon Yong

Abstract

The present invention provides a method for purifying isopropyl alcohol, the method comprising the following steps: supplying a feed comprising isopropyl alcohol, water, a first light by-product, a second light by-product, and a heavy by-product to a first column so as to separate the first light by-product; and supplying a bottom discharge stream of the first column to a second column so as to separate into a second column top discharge stream comprising the second light by-product, a first side discharge stream of the second column, comprising a mixture of the isopropyl alcohol and water, a second side discharge stream of the second column, comprising the heavy by-product, and a second column bottom discharge stream comprising the water.

IPC Classes  ?

  • C07C 29/80 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation
  • C07C 29/82 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation by azeotropic distillation
  • C07C 29/86 - SeparationPurificationStabilisationUse of additives by physical treatment by liquid-liquid treatment
  • C07C 29/04 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
  • C07C 31/10 - Monohydroxylic acyclic alcohols containing three carbon atoms
  • C07C 31/12 - Monohydroxylic acyclic alcohols containing four carbon atoms

69.

METHOD FOR PREPARING ISOPROPYL ALCOHOL

      
Application Number KR2024017592
Publication Number 2025/105773
Status In Force
Filing Date 2024-11-08
Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Sung June
  • Lee, Sung Kyu
  • Jang, Kyung Soo
  • Lee, Moon Yong

Abstract

The present invention provides a method for preparing isopropyl alcohol, the method comprising: supplying a feed that comprises isopropyl alcohol, water, and by-products to a dividing-wall column; discharging a first region bottom discharge stream that comprises isopropyl alcohol and by-products, from the bottom of a first region; discharging a second region bottom discharge stream that comprises water, from the bottom of a second region; supplying a top discharge stream to a layered separator so as to reflux an oil phase stream to the top region, and reflux an aqueous phase stream to the second region; and obtaining isopropyl alcohol from the first region bottom discharge stream.

IPC Classes  ?

  • C07C 29/82 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation by azeotropic distillation
  • C07C 29/04 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
  • C07C 31/10 - Monohydroxylic acyclic alcohols containing three carbon atoms
  • C07C 29/80 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation
  • C07C 31/12 - Monohydroxylic acyclic alcohols containing four carbon atoms

70.

METHOD FOR PRERARING ISOPROPYL ALCOHOL

      
Application Number KR2024017595
Publication Number 2025/105775
Status In Force
Filing Date 2024-11-08
Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Sung June
  • Lee, Sung Kyu
  • Jang, Kyung Soo
  • Lee, Moon Yong

Abstract

The present invention relates to a method for preparing isopropyl alcohol, and provides a method for preparing isopropyl alcohol, wherein a reaction product comprising isopropyl alcohol is prepared by causing a propylene monomer and water to react in a reactor, all or a part of the reaction product stream is cooled by exchanging heat with the side stream of a gas purification column, and the cooled reaction product is supplied to an absorption tower, thereby reducing energy usage.

IPC Classes  ?

  • C07C 29/80 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation
  • C07C 29/04 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
  • C07C 31/10 - Monohydroxylic acyclic alcohols containing three carbon atoms
  • C07C 31/12 - Monohydroxylic acyclic alcohols containing four carbon atoms

71.

STYRENE-BASED COPOLYMER, METHOD FOR PREPARING SAME, AND RESIN COMPOSITION INCLUDING SAME

      
Application Number KR2024017841
Publication Number 2025/105801
Status In Force
Filing Date 2024-11-12
Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ju, Min Cheol
  • Lee, Dae Woo
  • Bae, Jae Yeon
  • Shin, Min Seung
  • Hong, Sung Won
  • Kim, In Soo
  • Shin, Chan Ho

Abstract

A styrene-based copolymer according to an embodiment of the present invention comprises an alkyl (meth)acrylate-based monomer unit, an aromatic vinyl-based monomer unit, and a maleimide-based monomer unit, wherein the refractive index deviation defined by Equation 1 may be 0.02 or less. In Equation 1, the first refractive index is the refractive index of the styrene-based copolymer measured after vacuum drying, and the second refractive index is the refractive index of a precipitate obtained by dissolving the styrene-based copolymer in a tetrahydrofuran (THF) solution and then precipitating with methanol.

IPC Classes  ?

  • C08F 220/14 - Methyl esters
  • C08F 212/08 - Styrene
  • C08F 222/40 - Imides, e.g. cyclic imides
  • C08L 33/12 - Homopolymers or copolymers of methyl methacrylate
  • C08L 51/04 - Compositions of graft polymers in which the grafted component is obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers grafted on to rubbers

72.

SUBSTRATE

      
Application Number KR2024017850
Publication Number 2025/105806
Status In Force
Filing Date 2024-11-12
Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Seo, Han Min
  • Hong, Kyung Ki
  • Lee, Beom Jin
  • Lee, Seung Heon
  • Kim, Dong Hyun
  • You, Jung Sun
  • Woo, Jae Yong
  • Park, Young Jin
  • Nam, Pil Soo
  • Ko, Jae Ho

Abstract

A substrate and a use thereof are disclosed in the present specification. For example, even if the substrate is applied to a device for implementing transmittance variation by means of a liquid crystal host and a dichroic dye guest, a low transmittance relative to thickness can be ensured in a blocking mode, and the occurrence of haze in the blocking mode can also be prevented. Even if a spacer is implemented to be colored, the substrate can prevent an optical defect recognized by the color of the spacer in a transmission mode and the like. For example, the substrate can be used in a device having a transmittance-variable layer comprising a dye.

IPC Classes  ?

  • G02F 1/1339 - GasketsSpacersSealing of cells
  • G02F 1/1343 - Electrodes
  • G02F 1/139 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
  • G02F 1/137 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulatingNon-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
  • C09K 19/60 - Pleochroic dyes
  • G02F 1/161 - GasketsSpacersSealing of cellsFilling or closing of cells

73.

METHOD FOR PREPARATION OF HIGH PURITY (METH)ACRYLIC ACID

      
Application Number 18709981
Status Pending
Filing Date 2023-08-24
First Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Yoo, Sung Jin
  • Jang, Kyung Soo
  • Lee, Sung Kyu

Abstract

A method for preparing (meth)acrylic acid, including: bringing a mixed gas including (meth)acrylic acid into contact with water in an absorption column to obtain a (meth)acrylic acid aqueous solution; bringing the (meth)acrylic acid aqueous solution into contact with an extraction solvent in an extraction column to obtain an extract solution including the (meth)acrylic acid and extraction solvent; supplying the extract solution to a solvent purification column and separating the extract solution into a solvent-purification-column lower discharge stream and a solvent-purification-column upper discharge stream; supplying the solvent-purification-column lower discharge stream to a crystallizer and obtaining crystallized (meth)acrylic acid in the crystallizer; and supplying the mother liquor after the crystallization to a high boiling point by-product separation tower, and circulating a high boiling point by-product separation tower upper discharge stream from which the high boiling point by-product has been removed to the solvent purification tower.

IPC Classes  ?

  • C07C 51/48 - SeparationPurificationStabilisationUse of additives by liquid-liquid treatment

74.

Molded Body

      
Application Number 18727429
Status Pending
Filing Date 2023-09-15
First Publication Date 2025-05-22
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Yoon, Jung Hwan
  • Im, Dam Hyeok
  • Jung, Jin Mi
  • Moon, Sung Nam

Abstract

A plate-like molded body has a concavo-convex shape having intaglio portions and raised portions and has pores formed therein. The plate-like molded body has uniform mechanical properties. A method for manufacturing a plate-like molded body includes a molding step of placing a raw fabric including a resin component and a filler component on intaglios of a mold, and the intaglios correspond to a concavo-convex shape. The method additionally includes suctioning the raw fabric at a bottom of the mold.

IPC Classes  ?

  • B29C 70/44 - Shaping or impregnating by compression for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding

75.

Method for Preparing Catalyst Composition and Method for Preparing Conjugated Diene-Based Polymer

      
Application Number 18836456
Status Pending
Filing Date 2023-02-15
First Publication Date 2025-05-22
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Kang, Suk Youn
  • Lee, Tae Chul
  • Sohn, Hae Sung
  • Park, Sung Ho
  • Kim, Dong Hui
  • Park, Hyun Woong

Abstract

A method for continuously preparing a catalyst composition for preparing a catalyst composition having improved catalyst activity by pre-treating a hydrogen-bonded lanthanide rare earth element compound and/or an oligomer type of a lanthanide rare earth element compound of Formula 1, which induce the deterioration of the catalyst activity, and a method for preparing a conjugated diene-based polymer using the catalyst composition prepared thereby are described, A method for continuously preparing a catalyst composition for preparing a catalyst composition having improved catalyst activity by pre-treating a hydrogen-bonded lanthanide rare earth element compound and/or an oligomer type of a lanthanide rare earth element compound of Formula 1, which induce the deterioration of the catalyst activity, and a method for preparing a conjugated diene-based polymer using the catalyst composition prepared thereby are described, wherein all the variables are described herein.

IPC Classes  ?

  • C08F 136/06 - Butadiene
  • C08F 2/38 - Polymerisation using regulators, e.g. chain terminating agents
  • C08F 4/54 - MetalsMetal hydridesMetallo-organic compoundsUse thereof as catalyst precursors selected from light metals, zinc, cadmium, mercury, copper, silver, gold, boron, gallium, indium, thallium, rare earths, or actinides together with other compounds thereof
  • C08F 36/04 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated

76.

METHOD FOR PRODUCING PYROLYSIS OIL FROM WASTE PLASTICS

      
Application Number KR2024013388
Publication Number 2025/105668
Status In Force
Filing Date 2024-09-05
Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Na, Su Jin
  • Lee, Sang Beom
  • Lee, Sung Ho

Abstract

The present invention provides a method for producing pyrolysis oil from waste plastics, the method comprising the steps of: (S1) supplying waste plastic feedstock and process oil stream into a first melting tank and mixing same to obtain a first molten material; (S2) passing the first molten material through a first filter to remove non-molten solid materials; (S3) supplying the first molten material, from which the non-molten materials have been removed, into a second melting tank and raising the temperature to obtain a second molten material; (S4) pyrolyzing the second molten material to obtain a pyrolysis product including a gas phase fraction and a liquid phase fraction; and (S5) purifying the pyrolysis product by supplying the pyrolysis product to a distillation column.

IPC Classes  ?

  • C10G 1/00 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
  • C10G 1/10 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
  • C10G 31/06 - Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by heating, cooling, or pressure treatment
  • C10G 31/09 - Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for by filtration
  • C10G 29/06 - Metal salts, or metal salts deposited on a carrier
  • C10G 29/16 - Metal oxides
  • C10G 7/00 - Distillation of hydrocarbon oils

77.

METHOD FOR PURIFYING ISOPROPYL ALCOHOL

      
Application Number KR2024017587
Publication Number 2025/105771
Status In Force
Filing Date 2024-11-08
Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Sung June
  • Lee, Sung Kyu
  • Jang, Kyung Soo
  • Lee, Moon Yong

Abstract

The present invention provides a method for preparing isopropyl alcohol, comprising the steps of: cooling a reaction product and supplying the cooled reaction product to an absorption tower; and supplying a lower discharge stream of the absorption tower including isopropyl alcohol from the absorption tower to an isopropyl alcohol purification unit including first to fourth columns and supplying an upper discharge stream of the absorption tower including propylene to a gas purification unit including fifth and sixth columns, wherein all or a portion of the reaction product is cooled by exchanging heat with at least one of a lower discharge stream of the fourth column and a side discharge stream of the fifth column, an upper discharge stream of the second column exchanges heat with a lower discharge stream of the sixth column, and an upper discharge stream of the third column exchanges heat with at least one of a lower discharge stream of the first column and a lower discharge stream of the second column.

IPC Classes  ?

  • C07C 29/80 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation
  • C07C 29/82 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation by azeotropic distillation
  • C07C 29/04 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
  • C07C 31/10 - Monohydroxylic acyclic alcohols containing three carbon atoms
  • C07C 31/12 - Monohydroxylic acyclic alcohols containing four carbon atoms

78.

METHOD FOR PREPARING ISOPROPYL ALCOHOL

      
Application Number KR2024017594
Publication Number 2025/105774
Status In Force
Filing Date 2024-11-08
Publication Date 2025-05-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Sung June
  • Lee, Sung Kyu
  • Jang, Kyung Soo
  • Lee, Moon Yong

Abstract

The present invention provides a method for preparing isopropyl alcohol, the method comprising the following steps: supplying a feed comprising isopropyl alcohol, water, a first light by-product, a second light by-product, and a heavy by-product to a first column so as to separate the first light by-product; and supplying a bottom discharge stream of the first column to a second column so as to separate into a second column top discharge stream comprising the second light by-product, a first side discharge stream of the second column, comprising a mixture of the isopropyl alcohol and water, a second side discharge stream of the second column, comprising the heavy by-product, and a second column bottom discharge stream comprising the water.

IPC Classes  ?

  • C07C 29/82 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation by azeotropic distillation
  • C07C 29/04 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by addition of hydroxy groups to unsaturated carbon-to-carbon bonds, e.g. with the aid of H2O2 by hydration of carbon-to-carbon double bonds
  • C07C 31/10 - Monohydroxylic acyclic alcohols containing three carbon atoms
  • C07C 29/80 - SeparationPurificationStabilisationUse of additives by physical treatment by distillation
  • C07C 31/12 - Monohydroxylic acyclic alcohols containing four carbon atoms

79.

CURRENT COLLECTOR FOR DRY ELECTRODE, ELECTRODE INCLUDING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME

      
Application Number KR2024018107
Publication Number 2025/105867
Status In Force
Filing Date 2024-11-15
Publication Date 2025-05-22
Owner
  • LG ENERGY SOLUTION, LTD. (Republic of Korea)
  • LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jang, Seok-Hoon
  • Yi, Yeon-Hui
  • Ko, Kyung-Moon
  • Park, Moon-Soo
  • Park, Joo-Ho
  • Jung, Soon-Hwa

Abstract

The present invention relates to a current collector for a dry electrode, comprising: a metal thin film for a current collector; and a primer layer formed on at least one surface of the metal thin film, wherein the primer layer comprises a binder resin and a conductive material, and the conductive material has a bulk density of 0.055 g/ml or more and a BET specific surface area of 100 m2/g or less.

IPC Classes  ?

  • H01M 4/66 - Selection of materials
  • H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulatorsProcesses of manufacture thereof
  • H01M 10/052 - Li-accumulators

80.

METHOD FOR PREPARING NEOPENTYL GLYCOL

      
Application Number 18699478
Status Pending
Filing Date 2023-09-01
First Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Sung Kyun
  • Lee, Sung Kyu
  • Baek, Gi Su
  • Ha, Na Ro

Abstract

A method for preparing neopentyl glycol including: performing an aldol condensation reaction to obtain a first reaction product including hydroxypivaldehyde; bringing the first reaction product into contact with an extractant and distilling it to obtain an extract and a raffinate; supplying the raffinate to a saponification reactor to reduce the raffinate with a catalyst; supplying the extract and the catalyst to an aldol purification column and distilling them to be separated into an upper discharge stream and a lower discharge stream; supplying the lower discharge stream from the aldol purification column to a hydrogenation reactor to obtain a second reaction product including neopentyl glycol, and obtaining neopentyl glycol from the second reaction product.

IPC Classes  ?

  • C07C 29/141 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group of C=O containing groups, e.g. —COOH of a —CHO group with hydrogen or hydrogen-containing gases
  • C07C 45/64 - Preparation of compounds having C=O groups bound only to carbon or hydrogen atomsPreparation of chelates of such compounds by reactions not involving the formation of C=O groups by introduction of functional groups containing oxygen only in singly bound form
  • C07C 45/82 - SeparationPurificationStabilisationUse of additives by change in the physical state, e.g. crystallisation by distillation

81.

POLYETHYLENE COMPOSITION AND BIAXIALLY STRETCHED FILM COMPRISING THE SAME

      
Application Number 18837811
Status Pending
Filing Date 2023-11-02
First Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Inkyo
  • You, Youngsuk
  • Kim, Taejin
  • Lee, Sanghwa
  • Park, Cheol Hun
  • Choi, Eun Yeob

Abstract

The present disclosure relates to a polyethylene composition suitable for a biaxially stretched film, which has excellent stretching stability and high shrinkage resistance while maintaining excellent mechanical properties, productivity and printability, and a biaxially stretched film including the same.

IPC Classes  ?

  • C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
  • C08J 5/18 - Manufacture of films or sheets
  • C08L 23/0807 - Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms

82.

Polyethylene Resin Having Excellent Thermal Resistance

      
Application Number 18838446
Status Pending
Filing Date 2023-10-16
First Publication Date 2025-05-15
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Sung, Yutaek
  • Kim, Joongsoo
  • Lee, Hyojoon

Abstract

Provided is a polyethylene resin satisfying the following conditions 1) to 3), and being excellent in both mechanical properties and thermal resistance: 1) an inflection point exists in the range of −1.0≤log G*≤−0.5 in a modified VGP (Van Gurp Palmen) plot having an x-axis of log G* (G* is complex modulus, unit: dyne/cm2) and a y-axis of phase angle (unit: °); 2) Δ tan δ at 50 to 80° C. is less than 0.025 when measured by DMTA (Dynamic Mechanical Thermal Analysis); and 3) a melt index (MI2.16) measured at 190° C. under a load of 2.16 kg according to ASTM D1238 is 0.10 g/10 min or more.

IPC Classes  ?

83.

CATALYST FOR PREPARING UNSATURATED CARBOXYLIC ACIDS AND DERIVATIVES THEREOF

      
Application Number 18838588
Status Pending
Filing Date 2023-09-07
First Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Bang, Jungup
  • Kim, Jaeyoung
  • Byun, Wonbae
  • Choi, Jae Soon
  • Kim, Mahnjung
  • Song, Cheolock
  • Kim, Mira

Abstract

A catalyst for preparing an unsaturated carboxylic acid or derivative thereof, the catalyst capable of preparing the unsaturated carboxylic acid or derivative thereof in a high yield over a long period of time during a dehydration reaction of a hydroxycarboxylic acid or a derivative thereof.

IPC Classes  ?

  • B01J 27/18 - PhosphorusCompounds thereof containing oxygen with metals
  • B01J 37/00 - Processes, in general, for preparing catalystsProcesses, in general, for activation of catalysts
  • B01J 37/03 - PrecipitationCo-precipitation
  • B01J 37/04 - Mixing
  • B01J 37/06 - Washing
  • C07C 51/377 - Preparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by splitting-off hydrogen or functional groupsPreparation of carboxylic acids or their salts, halides, or anhydrides by reactions not involving formation of carboxyl groups by hydrogenolysis of functional groups

84.

Super Absorbent Polymer

      
Application Number 18838813
Status Pending
Filing Date 2023-09-27
First Publication Date 2025-05-15
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Kim, Tae Yun
  • Park, Se Yeol

Abstract

The present disclosure relates to super absorbent polymer that not only has excellent absorption speed, but also has little rewet and leakage when applied to a product such as a diaper, and the like, and has excellent absorption capacity.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • C08F 220/06 - Acrylic acidMethacrylic acidMetal salts or ammonium salts thereof

85.

INJECTABLE FORMULATION COMPRISING ISOXAZOLINE DERIVATIVE AND METHOD FOR PREPARING SAME

      
Application Number 18839166
Status Pending
Filing Date 2023-02-20
First Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Baek, Jaeuk
  • Kim, Sung Won
  • Yoon, Jung Woon

Abstract

The present invention relates to a pharmaceutical formulation for injection comprising an isoxazoline derivative useful as a caspase inhibitor or a pharmaceutically acceptable salt thereof as an active pharmaceutical ingredient (API). The pharmaceutical formulation for injection according to the present invention includes the first formulation composed of a high-dose API and the second formulation including a reconstitution solution, so that it can be prepared by mixing the first formulation and the second formulation immediately before administration to a patient, and contains the Active-API stably. Therefore, there is an advantage that effective drug efficacy can be expected when administered to a patient.

IPC Classes  ?

  • A61K 31/4725 - Non-condensed isoquinolines, e.g. papaverine containing further heterocyclic rings
  • A61K 9/00 - Medicinal preparations characterised by special physical form
  • A61K 9/16 - AgglomeratesGranulatesMicrobeadlets

86.

Method for Preparing Positive Electrode Active Material for Lithium Secondary Battery, Positive Electrode Comprising the Positive Electrode Active Material Prepared by the Same and Lithium Secondary Battery

      
Application Number 19019832
Status Pending
Filing Date 2025-01-14
First Publication Date 2025-05-15
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Kwak, Ick Soon
  • Chae, Chang Wan
  • Nam, Hyo Joung
  • Jeon, Hye Ji

Abstract

Provided are a manufacturing method of a positive electrode active material for a lithium secondary battery including: a first step of dry-mixing a transition metal hydroxide and an anhydrous lithium raw material; a second step of subjecting the mixture of the transition metal hydroxide and the anhydrous lithium raw material to primarily firing; and a third step of finely pulverizing and mixing the primarily fired material and performing secondary firing, and thus obtaining a lithium transition metal oxide, wherein, in the first step, the anhydrous lithium raw material is mixed at 40 parts by weight or less based on 100 parts by weight of the transition metal hydroxide, and a positive electrode for a lithium secondary battery including a positive electrode active material manufactured by the above-described manufacturing method, and a lithium secondary battery.

IPC Classes  ?

  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • C01G 53/50 - Complex oxides containing nickel and at least one other metal element containing alkali metals, e.g. LiNiO2 containing manganese of the type (MnO2)n-, e.g. Li(NixMn1-x)O2 or Li(MyNixMn1-x-y)O2
  • H01M 4/02 - Electrodes composed of, or comprising, active material
  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries

87.

Ethylene/Alpha-Olefin Copolymer and Method for Preparing the Same

      
Application Number 19022464
Status Pending
Filing Date 2025-01-15
First Publication Date 2025-05-15
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Young Woo
  • Kim, Seul Ki
  • Lee, Dae Woong
  • Lee, Jin Kuk
  • Lee, Eun Jung
  • Gong, Jin Sam
  • Jun, Jung Ho
  • Lee, Jun Hyuk

Abstract

The present invention relates to an ethylene/alpha-olefin copolymer having a high weight average molecular weight and narrow molecular weight distribution, and at the same time, a reduced characteristic relaxation time, thereby showing excellent physical properties, and a method for preparing the same. A resin composition having improved volume resistance and excellent light transmittance may be prepared by using such ethylene/alpha-olefin copolymer. Accordingly, the ethylene/alpha-olefin copolymer may be utilized in various uses in electrical and electronic industrial fields.

IPC Classes  ?

  • C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
  • C08J 5/18 - Manufacture of films or sheets
  • C08L 23/06 - Polyethene
  • C08L 23/08 - Copolymers of ethene
  • C08L 23/0807 - Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms

88.

ELECTRODE

      
Application Number 18274691
Status Pending
Filing Date 2022-01-28
First Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Ho Chan
  • Song, In Taek
  • Lee, Il Ha
  • Lee, Geun Sung
  • Kim, Ki Hwan
  • Mok, Yeong Bong
  • Park, Jin Woo

Abstract

The present application relates to an electrode comprising a current collector and an active material layer, which can provide an electrode capable of securing a high level of adhesion force between particles and adhesion force between the active material layer and the current collector relative to the content of binder in the active material layer. The present application can also provide a use of the electrode.

IPC Classes  ?

  • H01M 4/04 - Processes of manufacture in general
  • H01M 4/02 - Electrodes composed of, or comprising, active material
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 4/66 - Selection of materials

89.

PHOSPHORUS-BASED FLAME RETARDANT AND THERMOPLASTIC RESIN COMPOSITION INCLUDING SAME

      
Application Number 18287454
Status Pending
Filing Date 2022-10-18
First Publication Date 2025-05-15
Owner LG CHEM, LTD (Republic of Korea)
Inventor
  • Im, Seoyoung
  • Jang, Hanbit
  • Lee, Hoyong

Abstract

A phosphorus (P)-based flame retardant, a thermoplastic resin composition and a molded article including the phosphorus-based flame retardant are provided. The phosphorus-based flame retardant, even if an amount of use is reduced compared to a conventional flame retardant, is capable of providing significantly improved mechanical properties such as tensile strength and impact strength, while exhibiting excellent flame retardancy.

IPC Classes  ?

  • C08K 5/5399 - Phosphorus bound to nitrogen
  • C07F 19/00 - Metal compounds according to more than one of main groups
  • C08J 5/18 - Manufacture of films or sheets
  • C08K 5/5313 - Phosphinic compounds, e.g. R2=P(:O)OR'
  • C08K 5/5317 - Phosphonic compounds, e.g. R—P(:O)(OR')2
  • D01F 1/07 - Addition of substances to the spinning solution or to the melt for making fire- or flame-proof filaments
  • D01F 6/62 - Monocomponent man-made filaments or the like of synthetic polymersManufacture thereof from homopolycondensation products from polyesters

90.

METHOD FOR PROCESSING OF OLIGOMERIZATION REACTION BY-PRODUCTS

      
Application Number KR2024009456
Publication Number 2025/100677
Status In Force
Filing Date 2024-07-04
Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Baek, Se Won
  • Lee, Jeong Seok
  • Song, Jong Hun
  • Hwang, Moon Sub
  • Pak, Geun Tae

Abstract

The present invention relates to a method for processing of oligomerization reaction by-products, in an oligomer preparation process for preparing reaction products by reacting monomers and a solvent for oligomerization, wherein the concentration of the oligomerization reaction by-products is maximized through two-step concentration, so as to solidify the by-products before discharging, and thus the present invention alleviates the problem of pipe clogging while also increasing the recovery rate of the reaction products of ethylene oligomerization, thereby improving economic feasibility and stability of the process.

IPC Classes  ?

  • C07C 2/06 - Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms by addition between unsaturated hydrocarbons by oligomerisation of well-defined unsaturated hydrocarbons without ring formation of alkenes, i.e. acyclic hydrocarbons having only one carbon-to-carbon double bond
  • C07C 7/04 - Purification, separation or stabilisation of hydrocarbonsUse of additives by distillation
  • C07C 11/02 - Alkenes
  • C07C 11/107 - Alkenes with six carbon atoms
  • B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus

91.

FLAME RETARDANT POLYAMIDE 56 AND PREPARATION METHOD THEREOF

      
Application Number KR2024009635
Publication Number 2025/100678
Status In Force
Filing Date 2024-07-08
Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor Chon, Joonwoo

Abstract

The purpose of the present invention is to provide flame retardant polyamide 56, having an excellent flame retardant effect, and a preparation method thereof.

IPC Classes  ?

  • C08G 69/26 - Polyamides derived from amino carboxylic acids or from polyamines and polycarboxylic acids derived from polyamines and polycarboxylic acids
  • C08G 69/28 - Preparatory processes

92.

COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2024017424
Publication Number 2025/100937
Status In Force
Filing Date 2024-11-06
Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Geum, Sujeong
  • Jeon, Jiye
  • Cho, Woo Jin
  • Choi, Ji Young
  • Ha, Jae Seung
  • Song, Jongsoo
  • Lee, Woochul

Abstract

The present specification provides a compound of chemical formula 1, and an organic light-emitting device comprising same. Specifically, the organic light-emitting device comprises an anode, a cathode, and one or more organic material layers provided between the anode and the cathode, wherein one or more layers of the organic material layers comprise the compound of chemical formula 1.

IPC Classes  ?

  • C07D 307/77 - Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
  • C07D 407/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings directly linked by a ring-member-to-ring- member bond
  • C07F 7/08 - Compounds having one or more C—Si linkages
  • C07D 407/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 409/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
  • H10K 85/60 - Organic compounds having low molecular weight
  • H10K 85/40 - Organosilicon compounds, e.g. TIPS pentacene
  • H10K 50/12 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants

93.

POLYMER COMPOSITION

      
Application Number KR2024017525
Publication Number 2025/100966
Status In Force
Filing Date 2024-11-07
Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kang, Sun Ah
  • Cho, Beom Shin
  • Kim, Yu Min
  • Lee, Dae Woong
  • Kim, Yeon Soo
  • Yun, Hae Sung

Abstract

The present specification discloses: a polymer composition prepared by crosslinking a polysaccharide component with a metal compound derived from an aluminum compound; and use thereof. The present specification discloses a polymer composition which is prepared using a material having biodegradability and exhibits excellent and balanced absorption properties while exhibiting improved gel strength. The present specification also discloses: a method for preparing a polymer composition as described above; and use of the polymer composition.

IPC Classes  ?

  • C08K 5/098 - Metal salts of carboxylic acids
  • C08K 5/1545 - Six-membered rings
  • C08K 3/30 - Sulfur-, selenium-, or tellurium-containing compounds
  • C08L 1/28 - Alkyl ethers
  • C08L 5/00 - Compositions of polysaccharides or of their derivatives not provided for in group or
  • C08B 15/00 - Preparation of other cellulose derivatives or modified cellulose
  • C08B 37/00 - Preparation of polysaccharides not provided for in groups Derivatives thereof
  • C08J 3/12 - Powdering or granulating
  • A61L 15/60 - Liquid-swellable gel-forming materials, e.g. super-absorbents

94.

COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number 18720117
Status Pending
Filing Date 2022-12-06
First Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ha, Jae Seung
  • Geum, Sujeong
  • Kim, Seonwoo
  • Lee, Woochul
  • Cho, Woo Jin
  • Cha, Yongbum

Abstract

A compound of Chemical Formula 1: A compound of Chemical Formula 1: wherein X1 is O or S, any one of R1 to R6 is a moiety bonded to L1 of Chemical Formula A at the point indicated with **: A compound of Chemical Formula 1: wherein X1 is O or S, any one of R1 to R6 is a moiety bonded to L1 of Chemical Formula A at the point indicated with **: Ar1 is Chemical Formula B: A compound of Chemical Formula 1: wherein X1 is O or S, any one of R1 to R6 is a moiety bonded to L1 of Chemical Formula A at the point indicated with **: Ar1 is Chemical Formula B: wherein X2 is O or S, and the other substituents are as defined in the specification, and an organic light-emitting device including the same. When the compound of Chemical Formula 1 is included in an organic light emitting device, the device exhibits a lower driving voltage, improved light efficiency, and improved service life characteristics.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 407/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having oxygen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 409/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 409/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
  • C07D 493/04 - Ortho-condensed systems
  • C07D 497/04 - Ortho-condensed systems
  • C07F 7/08 - Compounds having one or more C—Si linkages
  • C09K 11/02 - Use of particular materials as binders, particle coatings or suspension media therefor
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
  • H10K 50/12 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
  • H10K 85/40 - Organosilicon compounds, e.g. TIPS pentacene

95.

COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT COMPRISING SAME

      
Application Number 18730013
Status Pending
Filing Date 2023-03-07
First Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Da Jung
  • Kim, Seonwoo
  • Cho, Woo Jin
  • Cha, Yongbum
  • Ha, Jae Seung
  • Geum, Sujeong
  • Lee, Woochul
  • Hwang, Sunghyun

Abstract

A compound of Chemical Formula 1: A compound of Chemical Formula 1: A compound of Chemical Formula 1: where the substituents are as defined in the specification, and an organic light emitting device including the same. When the compound of Chemical Formula 1 is included in an organic material layer of an organic light emitting device, the device exhibits voltage, high efficiency, and/or long service life characteristics.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • C07D 493/04 - Ortho-condensed systems
  • C07D 497/04 - Ortho-condensed systems
  • H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers

96.

Separator for Electrochemical Device and Electrochemical Device Including the Same

      
Application Number 18832639
Status Pending
Filing Date 2023-01-26
First Publication Date 2025-05-15
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, A-Young
  • Lee, Joo-Sung
  • Kim, Bong-Tae
  • Mun, Sung Cik
  • Lee, Ji-Myeong
  • Han, Sung-Jae

Abstract

A separator for an electrochemical device includes a polymer porous support and an inorganic composite porous layer formed on at least one surface of the porous support. The inorganic composite porous layer includes an organic filler and a binder polymer, which includes a first and second binder polymer. The weight ratio of the first binder polymer to the second binder polymer is 6:4-9:1. The first binder polymer is an amorphous polymer having a glass transition temperature (Tg) of 180° C. or higher. The second binder polymer is a polyvinylidene fluoride-based copolymer containing a first repeating unit derived from vinylidene fluoride (VDF) and a second repeating unit derived from hexafluoropropylene (HFP), and the content of the second repeating unit is 4-40 wt % based on the total weight of the copolymer. The separator has a high meltdown temperature, improved adhesion, and low shrinkage at high temperatures for excellent heat resistance and dimensional stability.

IPC Classes  ?

  • H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
  • H01M 50/426 - Fluorocarbon polymers
  • H01M 50/431 - Inorganic material
  • H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
  • H01M 50/491 - Porosity

97.

NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME

      
Application Number 18835673
Status Pending
Filing Date 2023-11-08
First Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Hoon Jun
  • Jung, Min Woo
  • Han, Miyeon
  • Lee, Jungha
  • Oh, Joongsuk
  • Cho, Hye Min
  • Lee, Hojung
  • Heo, Jeonghoe

Abstract

A novel compound of Chemical Formula 1: A novel compound of Chemical Formula 1: wherein: Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or a substituted or unsubstituted C2-60 heteroaryl containing at least one selected from the group consisting of N, O and S; Ar3 is a substituted or unsubstituted C6-60 aryl; L is a single bond, a substituted or unsubstituted C6-60 arylene, or a substituted or unsubstituted C2-60 heteroarylene containing at least one selected from the group consisting of N, O and S; R1 to R8 are each independently hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl, wherein any one of R1 to R8 is a substituted or unsubstituted phenyl, and at least one of the rest is deuterium; R9 is hydrogen or deuterium; and n is an integer of 1 to 3; and an organic light emitting device including the same.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • C07D 403/10 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 403/14 - Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, not provided for by group containing three or more hetero rings
  • C07D 405/14 - Heterocyclic compounds containing both one or more hetero rings having oxygen atoms as the only ring hetero atoms, and one or more rings having nitrogen as the only ring hetero atom containing three or more hetero rings
  • C07D 409/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
  • H10K 50/12 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants

98.

Method for Manufacturing Separator, Separator Obtained Therefrom and Electrochemical Device Including the Same

      
Application Number 18837996
Status Pending
Filing Date 2023-02-14
First Publication Date 2025-05-15
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Joo-Sung
  • Jin, Sun-Mi

Abstract

A method for manufacturing a separator disperses inorganic particles homogeneously in a slurry. The separator obtained by this method causes low aggregation of the inorganic particles to show reduced defects of surface protrusions in its appearance and can provide excellent physical properties. This method for manufacturing a separator includes preparing a slurry containing inorganic particles, a binder polymer and a solvent. The method additionally includes; carrying out dispersion of the inorganic particles in the slurry, and the dispersion is carried out by using two types of dispersion instruments of a contact type dispersion instrument and a non-contact type dispersion instrument. The contact type dispersion instrument includes beads having an average particle diameter at least 200 times larger than the average particle diameter (D50) of the inorganic particles. The method additionally includes applying the slurry to at least one surface of a polymer porous support, followed by drying.

IPC Classes  ?

  • H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
  • H01M 50/434 - Ceramics
  • H01M 50/443 - Particulate material
  • H01M 50/451 - Separators, membranes or diaphragms characterised by the material having a layered structure comprising layers of only organic material and layers containing inorganic material

99.

DIENE-BASED RUBBERY POLYMER AND PREPARATION METHOD THEREFOR

      
Application Number KR2024017303
Publication Number 2025/100902
Status In Force
Filing Date 2024-11-05
Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Suk, Jaemin
  • Lee, Jin Hyoung
  • Kim, Ki Hyun
  • Bak, Changhong
  • Chae, Minsu
  • Jeong, Young Hwan

Abstract

The present invention relates to a diene-based rubbery polymer and a method for preparing same, and according to the present invention, the diene-based rubbery polymer, while having a monodisperse particle diameter distribution, is controlled with respect to microstructure, average particle diameter, or total solid content, thereby providing a superb property balance between impact resistance and fluidity, thus providing, in particular, impact resistance and processability.

IPC Classes  ?

  • C08F 36/04 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
  • C08F 136/06 - Butadiene
  • C08F 2/22 - Emulsion polymerisation
  • C08F 6/18 - Increasing the size of the dispersed particles
  • C08F 2/38 - Polymerisation using regulators, e.g. chain terminating agents

100.

DIENE-BASED RUBBERY POLYMER, AND GRAFT COPOLYMER AND THERMOPLASTIC RESIN COMPOSITION COMPRISING SAME

      
Application Number KR2024017318
Publication Number 2025/100908
Status In Force
Filing Date 2024-11-05
Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Jin Hyoung
  • Suk, Jaemin
  • Kim, Ki Hyun
  • Bak, Changhong
  • Chae, Minsu
  • Jeong, Young Hwan

Abstract

The present invention relates to a diene-based rubber polymer, and a graft copolymer and a thermoplastic resin composition, comprising same. According to the present invention, by controlling the particle size distribution, average particle size, circularity, and the like of a diene-based rubber polymer having a specific microstructure, the degree of swelling of a graft copolymer comprising the diene-based rubber polymer is controlled, and furthermore, a thermoplastic resin composition is provided, the thermoplastic resin composition having excellent physical property balance between impact resistance and flowability and further capable of providing high gloss or high flowability.

IPC Classes  ?

  • C08F 36/04 - Homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, at least one having two or more carbon-to-carbon double bonds the radical having only two carbon-to-carbon double bonds conjugated
  • C08F 136/06 - Butadiene
  • C08F 2/22 - Emulsion polymerisation
  • C08F 6/18 - Increasing the size of the dispersed particles
  • C08F 279/04 - Vinyl aromatic monomers and nitriles as the only monomers
  • C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
  • C08F 2/38 - Polymerisation using regulators, e.g. chain terminating agents
  1     2     3     ...     100        Next Page