LG Chem, Ltd.

Republic of Korea

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[Owner] LG Chem, Ltd. 11,397
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IPC Class
H01M 10/052 - Li-accumulators 1,216
H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders 956
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) 840
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 812
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers 594
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Found results for  patents
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1.

METHOD FOR PREPARING POLYMER

      
Application Number KR2024010688
Publication Number 2025/146891
Status In Force
Filing Date 2024-07-24
Publication Date 2025-07-10
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Oh, Suk Yung
  • Ko, Jun Seok
  • Kim, Kwan Sik
  • Lee, Sung Hyeon
  • Yoon, Su Ji

Abstract

The present invention provides a method for preparing a polymer, wherein a feed stream comprising water and a polymer solution is supplied to a first stripper, a bottom discharge stream from the first stripper, comprising a polymer and water, is supplied to a second stripper, and a bottom discharge stream from the second stripper is supplied to a third stripper so as to obtain a polymer from the bottom discharge stream from the third stripper.

IPC Classes  ?

  • C08F 2/06 - Organic solvent
  • C08F 2/01 - Processes of polymerisation characterised by special features of the polymerisation apparatus used
  • C08F 236/10 - 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 with vinyl aromatic monomers
  • C08F 212/08 - Styrene

2.

COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT COMPRISING SAME

      
Application Number KR2025000150
Publication Number 2025/147148
Status In Force
Filing Date 2025-01-03
Publication Date 2025-07-10
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Jae Tak
  • Kim, Hanna
  • Park, Jongjin
  • Yoon, Jung Min
  • Han, Su Jin
  • Heo, Dong Uk
  • Yun, Heekyung
  • Hong, Sung Kil

Abstract

The present specification relates to a compound represented by chemical formula 1, and an organic light-emitting element comprising the compound. The organic light-emitting element includes: a first electrode; a second electrode; and one or more organic material layers provided between the first electrode and the second electrode, wherein at least one of the organic material layers may comprise the compound represented by chemical formula 1. Specifically, the organic material layers comprise at least one layer among an electron transport layer, an electron injection layer, and an electron injection and transport layer, and at least one of the layers may include the compound represented by chemical formula 1.

IPC Classes  ?

  • 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
  • H10K 85/60 - Organic compounds having low molecular weight
  • H10K 50/16 - Electron transporting layers
  • H10K 50/17 - Carrier injection layers

3.

ELECTRIC HEATING REACTOR

      
Application Number KR2024020826
Publication Number 2025/143695
Status In Force
Filing Date 2024-12-20
Publication Date 2025-07-03
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Jaehoon
  • Kang, Mooseong
  • Kwon, Hyun Jee
  • Park, Hongseok

Abstract

An electric heating reactor is disclosed. The electric heating reactor may include: a reaction tube having a passage formed in a longitudinal direction through which a reactant passes; a power supply for supplying power to the reaction tube so as to heat the reactant passing through the passage; a pair of conductive sockets for connecting the power supply and the reaction tube so that current flows therethrough; and a heating element extending in the longitudinal direction inside the reaction tube, electrically connected to the reaction tube, and receiving power supplied from the power supply to generate heat and further heat the reactant passing through the passage.

IPC Classes  ?

  • B01J 19/08 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor
  • 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 8/06 - 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 in tube reactorsChemical 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 the solid particles being arranged in tubes
  • B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
  • B01J 19/24 - Stationary reactors without moving elements inside

4.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING SAME

      
Application Number KR2024021452
Publication Number 2025/143943
Status In Force
Filing Date 2024-12-30
Publication Date 2025-07-03
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Joo-Sung
  • Jin, Jun-Ji
  • Kim, Jin-Woo
  • Sim, Ku-Hwan
  • Cho, Se-Young

Abstract

A separator according to the present invention has excellent adhesion to an electrode and can secure sufficient porosity, thereby exhibiting excellent resistance and ion conductivity characteristics. In addition, the separator is in close contact with the electrode without a gap at the interface between the electrode and the separator, thereby ensuring excellent long-term life characteristics of a battery. In addition, the lamination process time can be shortened during the manufacture of an electrode assembly, thereby achieving high process efficiency in the manufacture of a battery.

IPC Classes  ?

  • 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 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
  • H01M 50/431 - Inorganic material
  • H01M 10/052 - Li-accumulators
  • H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins

5.

SEPARATOR FOR ELECTROCHEMICAL DEVICE, AND METHOD FOR MANUFACTURING SAME

      
Application Number KR2024021455
Publication Number 2025/143944
Status In Force
Filing Date 2024-12-30
Publication Date 2025-07-03
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Joo-Sung
  • Kim, Kyeong-Rak
  • Park, Je-Seob
  • Kim, Jin-Woo

Abstract

The present invention provides a separator for an electrochemical device, comprising: a porous polymer substrate; and an inorganic coating layer for covering one surface or both surfaces of the porous polymer substrate, wherein: the inorganic coating layer includes a plurality of adhesive polymer columns having a predetermined volume; the polymer columns are made of a polymer material and have no pores; at least some parts of the polymer columns are exposed to the surface of the inorganic coating layer while other parts thereof are in contact with the surface of the porous polymer substrate; at least one polymer column is spaced a predetermined distance apart from another polymer column; the space between the polymer columns is filled with inorganic particles; and, on the basis of the top view of the separator, the area occupied by the surface area of the polymer column exposed to the surface of the inorganic coating layer is 10% to 80% with respect to 100% of the surface area of the inorganic coating layer.

IPC Classes  ?

  • 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 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
  • H01M 50/431 - Inorganic material
  • H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
  • H01M 10/052 - Li-accumulators

6.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING SAME

      
Application Number KR2024021459
Publication Number 2025/143947
Status In Force
Filing Date 2024-12-30
Publication Date 2025-07-03
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Joo-Sung
  • Park, Seong-Eun
  • Kim, Jin-Woo

Abstract

A separator according to the present invention not only has excellent adhesion to an electrode, but also can ensure sufficient porosity, and thus has excellent resistance and ion conductivity characteristics. In addition, the lamination process time can be reduced during the manufacture of electrode assemblies, and thus high process efficiency can be achieved in manufacturing batteries.

IPC Classes  ?

  • 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 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
  • H01M 50/431 - Inorganic material
  • H01M 10/052 - Li-accumulators
  • H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
  • H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins

7.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING SAME

      
Application Number KR2024021449
Publication Number 2025/143941
Status In Force
Filing Date 2024-12-30
Publication Date 2025-07-03
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Joo-Sung
  • Jin, Jun-Ji
  • Kim, Jin-Woo
  • Sim, Ku-Hwan

Abstract

A separator according to the present invention not only demonstrates excellent adhesion to electrodes but also ensures sufficient porosity, thereby exhibiting outstanding resistance and ion conductivity characteristics. In addition, the present invention enables a reduction in lamination process time during the manufacture of electrode assemblies, thereby achieving high process efficiency in battery production.

IPC Classes  ?

  • 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 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
  • H01M 50/431 - Inorganic material
  • H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
  • H01M 10/052 - Li-accumulators

8.

SEPARATOR FOR ELECTROCHEMICAL DEVICE AND METHOD FOR MANUFACTURING SAME

      
Application Number KR2024021463
Publication Number 2025/143950
Status In Force
Filing Date 2024-12-30
Publication Date 2025-07-03
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Joo-Sung
  • Kim, Kee-Yong
  • Kim, Jin-Woo
  • Lim, Mun-Hyuk

Abstract

A separator according to the present invention not only has excellent adhesion to an electrode, but also can secure sufficient porosity, thereby exhibiting excellent resistance and ion conductivity characteristics. Additionally, the lamination process time can be shortened during the manufacture of an electrode assembly, thereby achieving high process efficiency in the manufacture of batteries. Furthermore, the energy density of lithium secondary batteries can be maximized by minimizing the height of an inorganic particle filling part.

IPC Classes  ?

  • 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 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/489 - Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties
  • H01M 50/431 - Inorganic material
  • H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
  • H01M 10/052 - Li-accumulators

9.

ELECTRIC HEATING REACTOR

      
Application Number KR2024096897
Publication Number 2025/144002
Status In Force
Filing Date 2024-12-13
Publication Date 2025-07-03
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kwon, Hyun Jee
  • Kang, Mooseong
  • Park, Hongseok
  • Choi, Jaehoon

Abstract

An electric heating reactor is disclosed. The electric heating reactor may comprise: a reaction tube in which a passage through which a reactant passes is formed in a longitudinal direction; a power supply which is configured to supply electric power to the reaction tube so as to heat the reactant passing through the passage; a pair of conductive sockets which connect the power supply and the reaction tube to allow current to flow; and a heating element which extends in the longitudinal direction inside the reaction tube, is electrically connected to the reaction tube, and is configured to receive the electric power supplied from the power supply, generate heat, and further heat the reactant passing through the passage.

IPC Classes  ?

  • B01J 19/08 - Processes employing the direct application of electric or wave energy, or particle radiationApparatus therefor
  • 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 19/24 - Stationary reactors without moving elements inside
  • B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
  • B01J 8/06 - 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 in tube reactorsChemical 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 the solid particles being arranged in tubes

10.

USE OF MELANOCORTIN-4 RECEPTOR AGONISTS FOR THE TREATMENT OF A LEPR AND/OR SH2B1 DEFICIENCY

      
Application Number US2024061918
Publication Number 2025/144899
Status In Force
Filing Date 2024-12-26
Publication Date 2025-07-03
Owner
  • LG CHEM, LTD. (Republic of Korea)
  • RHYTHM PHARMACEUTICALS, INC. (USA)
Inventor
  • Park, Hee, Dong
  • Hwang, Hye, Kyeong

Abstract

The present disclosure relates to the use of a compound of chemical Formula 1 or a pharmaceutically acceptable salt thereof for the purpose of preventing, improving, or treating a genetic obesity disease associated with the melanocortin-4 receptor (MC4R) pathway, particularly a genetic obesity disease associated with SH2B1 deficiency or a LEPR deficiency.

IPC Classes  ?

  • A61K 31/395 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
  • C07D 207/02 - Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
  • A61K 31/535 - Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with at least one nitrogen and at least one oxygen as the ring hetero atoms, e.g. 1,2-oxazines
  • A61K 31/33 - Heterocyclic compounds

11.

METHOD AND SYSTEM FOR TREATING PROCESS FLUID

      
Application Number KR2024009534
Publication Number 2025/135349
Status In Force
Filing Date 2024-07-05
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Sung June
  • Ahn, Hyun Soo
  • Lee, Sung Kyu
  • Jang, Kyung Soo

Abstract

The present invention relates to a method and a system for treating a process fluid and, more specifically, to a method and a system for treating a process fluid, the method and the system having improved operation stability, when recovering waste heat from a process fluid, by employing a condenser designed to respond to the phase of the process fluid, which changes according to whether steam for recovering waste heat is generated.

IPC Classes  ?

  • F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
  • F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
  • F22B 3/00 - Other methods of steam generationSteam boilers not provided for in other groups of this subclass

12.

BUBBLE COLUMN REACTOR AND APPARATUS FOR PRODUCING OLIGOMERS COMPRISING SAME

      
Application Number KR2024013417
Publication Number 2025/135396
Status In Force
Filing Date 2024-09-05
Publication Date 2025-06-26
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 a bubble column reactor and an apparatus for producing oligomers comprising same, the bubble column reactor comprising: a liquid region in which reactions occur and a gas region located above the liquid region; a partition that divides the liquid region longitudinally into first and second areas; a liquid-level measurement device, connected to the second area of the liquid region, for measuring the level of the liquid in the second area; and a downstream pipe, provided on the side of the second area in the liquid region, for discharging the liquid stream, wherein the partition is provided in the liquid region so as for one end thereof to be positioned at the boundary between the liquid and gas regions so that the overflow liquid stream from the first area that flows over the partition is stored in the second area.

IPC Classes  ?

  • B01J 8/18 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with fluidised particles
  • B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus
  • C07C 2/08 - Catalytic processes
  • C07C 11/02 - Alkenes
  • C07C 11/107 - Alkenes with six carbon atoms

13.

COMPOUND AND ORGANIC LIGHT-EMITTING ELEMENT COMPRISING SAME

      
Application Number KR2024020687
Publication Number 2025/135821
Status In Force
Filing Date 2024-12-19
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Ji Young
  • Geum, Sujeong
  • Lee, Woochul
  • Jeon, Jiye
  • Cho, Woo Jin
  • Ha, Jae Seung

Abstract

The present specification relates to a compound represented by chemical formula 1, and an organic light-emitting element comprising same. Specifically, the compound comprises pyrene substituted with a naphthofuran group or a naphthothiophene group, the organic light-emitting element comprises: a first electrode; a second electrode; and at least one organic material layer provided between the first electrode and the second electrode, wherein at least one of the organic material layers comprise the compound.

IPC Classes  ?

  • C07D 307/92 - NaphthofuransHydrogenated naphthofurans
  • 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
  • H10K 85/60 - Organic compounds having low molecular weight
  • H10K 50/12 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
  • H10K 101/00 - Properties of the organic materials covered by group

14.

COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2024020693
Publication Number 2025/135823
Status In Force
Filing Date 2024-12-19
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Ji Young
  • Geum, Sujeong
  • Lee, Woochul
  • Jeon, Jiye
  • Cho, Woo Jin
  • Ha, Jae Seung

Abstract

The present specification relates to a compound of chemical formula 1 and an organic light-emitting device comprising the compound. Specifically, the compound includes pyrene substituted with a naphthofuran group or a naphthothiophene group, and the organic light-emitting device comprises: a first electrode; a second electrode; and one or more organic layers disposed between the first electrode and the second electrode, wherein at least one of the organic layers contains the compound.

IPC Classes  ?

  • C07D 307/92 - NaphthofuransHydrogenated naphthofurans
  • H10K 85/60 - Organic compounds having low molecular weight
  • H10K 50/12 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers comprising dopants
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
  • H10K 101/00 - Properties of the organic materials covered by group

15.

SYSTEM FOR TREATING PROCESS FLUID

      
Application Number KR2024009535
Publication Number 2025/135350
Status In Force
Filing Date 2024-07-05
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Sung June
  • Ahn, Hyun Soo
  • Lee, Sung Kyu

Abstract

The present invention relates to a system for treating a process fluid and, more specifically, to a system for treating a process fluid, the system recovering waste heat from a process fluid via heat exchange which is conducted by switching, according to the phase of the process fluid, between two condensers having different heat exchange capacities from one another, such that the system responds to the phase of the process fluid, which changes according to whether steam for recovering waste heat is generated, and thus can improve operation stability.

IPC Classes  ?

  • F28D 21/00 - Heat-exchange apparatus not covered by any of the groups
  • F28F 27/00 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
  • F22B 3/00 - Other methods of steam generationSteam boilers not provided for in other groups of this subclass

16.

METHOD FOR DISPOSAL OF CHLOROSILANE-BASED COMPOUNDS

      
Application Number KR2024010696
Publication Number 2025/135364
Status In Force
Filing Date 2024-07-24
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Oh, Suk Yung
  • Ko, Jun Seok
  • Jeon, Byung Chul
  • Lee, Sung Hyeon
  • Yoon, Su Ji
  • Kim, Hyun Ho

Abstract

The present invention provides a method for disposal of chlorosilane-based compounds, the method comprising the steps of: introducing a feed stream containing a chlorosilane-based compound into a liquid phase region containing a first aqueous solution within a column and reacting the chlorosilane-based compound with water to obtain an overhead discharge flow of the liquid phase region containing hydrogen chloride gas; introducing the overhead discharge flow of the liquid phase region into a packing region located above the liquid phase region; supplying a second aqueous solution containing a basic substance to a distribution region located above the packing region, and introducing into the packing region the second aqueous solution supplied to the distribution region; and neutralizing the hydrogen chloride gas included in the overhead discharge stream of the liquid phase region with the basic substance contained in the second aqueous solution in the packing region to obtain a bottom discharge flow of the packing region containing a chloride salt and a top discharge stream from the column.

IPC Classes  ?

  • C02F 1/60 - Silicon compounds
  • C02F 1/66 - Treatment of water, waste water, or sewage by neutralisationTreatment of water, waste water, or sewage pH adjustment
  • C02F 103/38 - Polymers
  • C02F 101/12 - Halogens or halogen-containing compounds

17.

COMPOSITION FOR ENCAPSULANT FILM AND ENCAPSULANT FILM COMPRISING SAME

      
Application Number KR2024019695
Publication Number 2025/135618
Status In Force
Filing Date 2024-12-04
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jeon, Min Hong
  • Park, In Sung
  • Choe, Ik Je
  • Gwak, Rae Keun
  • Kim, Jong Won
  • Woo, Ji Yoon

Abstract

The present invention relates to: a composition for an encapsulant film comprising at least one olefin-based polymer and polyethylene; and an encapsulant film and a solar cell module, comprising same. The crystal distribution width of a highly crystalline portion is maintained at 10 ℃ or more, which minimizes a creep phenomenon while maintaining adhesive strength and light transmittance, thus enabling deformation to be minimized even during long-term use.

IPC Classes  ?

  • C08L 23/08 - Copolymers of ethene
  • C08L 23/06 - Polyethene
  • C08J 5/18 - Manufacture of films or sheets
  • H10F 19/80 - Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells

18.

POLYOLEFIN COMPOSITION

      
Application Number KR2024019719
Publication Number 2025/135619
Status In Force
Filing Date 2024-12-04
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choe, Ik Je
  • Park, In Sung
  • Kim, Jong Won
  • Jeon, Min Hong
  • Woo, Ji Yoon
  • Gwak, Rae Keun

Abstract

The present invention relates to a polyolefin composition comprising at least one olefinic polymer and polyethylene, wherein the width of crystallinity distribution of a high crystalline portion is maintained at 10 °C or higher, thereby minimizing creep phenomenon, and thus, even when the polyolefin composition is used for a long period of time in the preparation of a composition for an encapsulant film or an encapsulant film, deformation of the film can be minimized.

IPC Classes  ?

19.

POLYOLEFIN COMPOSITION

      
Application Number KR2024019723
Publication Number 2025/135621
Status In Force
Filing Date 2024-12-04
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Gwak, Rae Keun
  • Park, In Sung
  • Choe, Ik Je
  • Kim, Jong Won
  • Jeon, Min Hong
  • Woo, Ji Yoon

Abstract

The present invention relates to a polyolefin composition comprising at least one type of olefin-based polymer and polyethylene. The crystal distribution in high-crystalline and medium-crystalline parts is maintained in the range of 22°C or greater to minimize creep such that when used in the manufacture of a encapsulant film composition or an encapsulant film, deformation of the film can be minimized even when used for an extended period of time.

IPC Classes  ?

20.

ENCAPSULANT FILM COMPOSITION AND ENCAPSULANT FILM COMPRISING SAME

      
Application Number KR2024019727
Publication Number 2025/135622
Status In Force
Filing Date 2024-12-04
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Jong Won
  • Park, In Sung
  • Choe, Ik Je
  • Gwak, Rae Keun
  • Jeon, Min Hong
  • Woo, Ji Yoon

Abstract

The present invention relates to: an encapsulant film composition which comprises at least one olefin-based polymer and a polyethylene; an encapsulant film comprising same; and a solar cell module comprising same. The crystal distribution width of highly crystalline and intermediately crystalline regions is maintained at 22 °C or more, and thus deformation can be minimized even during prolonged use by minimizing creep, while also maintaining adhesive strength and light transmittance.

IPC Classes  ?

  • C08L 23/08 - Copolymers of ethene
  • C08L 23/06 - Polyethene
  • C08J 5/18 - Manufacture of films or sheets
  • H10F 19/80 - Encapsulations or containers for integrated devices, or assemblies of multiple devices, having photovoltaic cells

21.

CURABLE COMPOSITION

      
Application Number KR2024020696
Publication Number 2025/135825
Status In Force
Filing Date 2024-12-19
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hong, Sung Bum
  • Kim, Hye Jin
  • Seo, Sang Hyuk

Abstract

The present specification discloses a curable composition. The curable composition can exhibit excellent storage stability without viscosity change or viscosity non-uniformity caused by sedimentation of a filler, even while containing the filler at an excessive amount in order to achieve high thermal conductivity. The curable composition can exhibit both high thermal conductivity and storage stability even while using a hydroxide filler as a filler. The present specification discloses uses of the curable composition.

IPC Classes  ?

22.

POLYETHYLENE COMPOSITION

      
Application Number KR2024020857
Publication Number 2025/135900
Status In Force
Filing Date 2024-12-20
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Seo, Jin Seok
  • Kim, Jeongsik
  • Hong, Bog Ki
  • Kim, Daehwan

Abstract

The present invention provides a polyethylene composition comprising virgin polyethylene and recycled polyethylene (post-consumer waste polyethylene (PCW PE)), and having excellent mechanical properties along with improved environmental stress cracking resistance.

IPC Classes  ?

  • C08L 23/04 - Homopolymers or copolymers of ethene
  • C08L 23/0807 - Copolymers of ethene with unsaturated hydrocarbons only containing four or more carbon atoms

23.

CURABLE COMPOSITION

      
Application Number KR2024020874
Publication Number 2025/135907
Status In Force
Filing Date 2024-12-20
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Hye Jin
  • Hong, Sung Bum
  • Park, Sang Hun
  • Jung, Je Sik
  • Seo, Sang Hyuk
  • Kim, Be Thy
  • Lee, Sol Yi

Abstract

This curable composition and a use thereof are disclosed in the present specification. The curable composition can form a cured product that exhibits excellent thermal conductivity and volume resistance while achieving a lightweight effect by including a low-density filler and the like, and can ensure processability by exhibiting an appropriate level of viscosity. A use of the curable composition is also disclosed in the present specification.

IPC Classes  ?

24.

CATALYST FOR METHANE REFORMING AND METHOD FOR PRODUCING SAME

      
Application Number KR2024097115
Publication Number 2025/136045
Status In Force
Filing Date 2024-12-18
Publication Date 2025-06-26
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Cho, Jun Yeon
  • Kim, Sangjin
  • Kim, Sojin
  • Kim, Suji
  • Kim, Yongseon
  • Byun, Wonbae
  • Choi, Jae Soon
  • Choi, Jun Seon
  • Choi, Hyun A

Abstract

The present invention relates to a catalyst for methane reforming and a method for producing the catalyst for methane reforming. The catalyst for methane reforming according to an embodiment can minimize the influence of a metal support component on a catalytic phase by preventing leaching of the porous metal support component.

IPC Classes  ?

  • B01J 23/00 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
  • B01J 37/02 - Impregnation, coating or precipitation
  • B01J 35/60 - Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
  • C01B 3/26 - Production of hydrogen or of gaseous mixtures containing hydrogen by decomposition of gaseous or liquid organic compounds of hydrocarbons using catalysts

25.

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  ?

26.

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

27.

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

28.

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

29.

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

30.

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

31.

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

32.

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

33.

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

34.

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  ?

35.

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

36.

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

37.

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

38.

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

39.

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

40.

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

41.

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

42.

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

43.

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

44.

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

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.

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

60.

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

61.

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

62.

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

63.

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

64.

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

65.

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

66.

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

67.

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

68.

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

69.

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

70.

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

71.

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

72.

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

73.

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

74.

PARTICLE COMPLEX, CELL CULTURE COMPOSITION USING SAME, AND METHOD FOR PRODUCING CELL THERAPEUTIC AGENT

      
Application Number KR2024017375
Publication Number 2025/100924
Status In Force
Filing Date 2024-11-06
Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Song, Seuk Young
  • Kim, Jee Seon
  • Shin, Jung Youn
  • Oh, Seungjun
  • Kim, Minchae
  • Kim, Youngkyun
  • Kim, Yeji

Abstract

The present invention relates to a particle complex, a cell culture composition using same, and a method for preparing a cell therapeutic agent, wherein the particle complex comprises: spherical particles; and a protein immobilized on the surface of the particles.

IPC Classes  ?

  • C07K 17/06 - Peptides being immobilised on, or in, an organic carrier attached to the carrier via a bridging agent
  • C12N 5/074 - Adult stem cells
  • A61K 35/17 - LymphocytesB-cellsT-cellsNatural killer cellsInterferon-activated or cytokine-activated lymphocytes

75.

NOVEL COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2024017662
Publication Number 2025/101000
Status In Force
Filing Date 2024-11-08
Publication Date 2025-05-15
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Heo, Dong Uk
  • Han, Su Jin
  • Lee, Jae Tak
  • Yoon, Jung Min
  • Park, Jongjin
  • Kim, Hanna
  • Hong, Sung Kil

Abstract

The present invention provides a novel compound and an organic light-emitting device comprising 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 403/10 - 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 471/04 - Ortho-condensed systems
  • 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
  • C07D 213/22 - 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 containing two or more pyridine rings directly linked together, e.g. bipyridyl
  • C07D 413/10 - Heterocyclic compounds containing two or more hetero rings, at least one ring having nitrogen and oxygen atoms as the only ring hetero atoms containing two hetero rings linked by a carbon chain containing aromatic rings
  • C07D 263/57 - Aryl or substituted aryl radicals
  • C07D 417/10 - 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 two hetero rings linked by a carbon chain containing aromatic rings
  • H10K 85/60 - Organic compounds having low molecular weight

76.

THERMOPLASTIC RESIN COMPOSITION, METHOD FOR PRODUCING SAME, AND MOLDED ARTICLE INCLUDING SAME

      
Application Number KR2024013224
Publication Number 2025/095321
Status In Force
Filing Date 2024-09-03
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Suk Jo
  • Ryu, Hyun Jun
  • Kim, Tae Hoon
  • Han, Seunghun

Abstract

The present disclosure relates to a thermoplastic resin composition, a method for producing same, and a molded article including same. More specifically, the present disclosure relates to: the thermoplastic resin composition characterized by comprising: 100 parts by weight of a base resin including (A) 79-86 wt% of a non-graft copolymer comprising an alkyl (meth)acrylate, an alkyl-substituted styrene-based compound, and a vinyl cyanide compound, and (B) 14-21 wt% of at least one graft copolymer selected from the group consisting of (b-1) a graft copolymer in which an alkyl (meth)acrylate, an aromatic vinyl compound, and a vinyl cyan compound are grafted onto a conjugated diene rubber having an average particle size of 200-500 nm and (b-2) an alkyl acrylate-aromatic vinyl compound-vinyl cyan compound graft copolymer containing an alkyl acrylate rubber having an average particle size of 50-400 nm; and (C) 8-21 parts by weight of a thermoplastic polyester elastomer; a method for producing same; and a molded article including same. The present invention has the effect of providing: a thermoplastic resin composition that has excellent mechanical properties and excellent heat resistance and chemical resistance, in particular, excellent sun cream resistance, exhibits high blackness, and can be applied to an uncoated molded article with uniform appearance in injection molding and high quality; a method for producing same; and a molded article including same.

IPC Classes  ?

  • C08L 33/20 - Homopolymers or copolymers of acrylonitrile
  • 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
  • C08L 51/00 - 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
  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds

77.

METHOD FOR MANUFACTURING CATALYST FOR CARBON NANOTUBE PRODUCTION, CATALYST FOR CARBON NANOTUBE PRODUCTION, AND CARBON NANOTUBE

      
Application Number KR2024015989
Publication Number 2025/095429
Status In Force
Filing Date 2024-10-21
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Gim, Min Yeong
  • Oh, Eu Gene
  • Choi, Jung Ho
  • Kim, Se Hyun
  • Jeon, Hee Jung
  • Kim, Og Sin
  • Hwang, Doo Sung
  • Kim, Dong Eun

Abstract

The present invention relates to a method for manufacturing a catalyst for carbon nanotube production, a catalyst for carbon nanotube production manufactured by said manufacturing method, a method for manufacturing carbon nanotubes using said catalyst, and carbon nanotubes manufactured by said manufacturing method, wherein the catalyst can be readily manufactured for use in producing thin-walled carbon nanotubes by precipitating an active metal in a hydroxide form even under relatively mild conditions by using ammonium hydroxide as a co-precipitating agent.

IPC Classes  ?

  • B01J 37/03 - PrecipitationCo-precipitation
  • B01J 37/08 - Heat treatment
  • B01J 23/881 - Molybdenum and iron
  • B01J 35/40 - Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
  • C01B 32/162 - Preparation characterised by catalysts

78.

RESIN COMPOSITION

      
Application Number KR2024016686
Publication Number 2025/095542
Status In Force
Filing Date 2024-10-29
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jung, Dae San
  • Nam, Jin Oh
  • Namgung, Ho
  • Kim, Seong Lyong
  • Han, Seung Hun

Abstract

A resin composition according to an embodiment of the present invention may comprise: a graft copolymer composition that contains a first graft copolymer including a rubber polymer with a glass transition temperature of -120°C to -90°C, and a second graft copolymer including a rubber polymer with a glass transition temperature of -70°C to -40°C; a matrix copolymer composition that contains any one selected from the group consisting of a first matrix copolymer including alkyl-substituted aromatic vinyl monomer units, a second matrix copolymer including maleimide-based monomer units, a third matrix copolymer including alkyl-unsubstituted aromatic vinyl monomer units, and a combination thereof; an elastomer including a polyolefin-based compound; and a third graft copolymer in which aromatic vinyl monomer units and vinyl cyanide monomer units are grafted onto a polyalkylene backbone.

IPC Classes  ?

  • C08L 25/12 - Copolymers of styrene with unsaturated nitriles
  • C08L 55/02 - ABS [Acrylonitrile-Butadiene-Styrene] polymers
  • 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
  • C08L 35/00 - Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a carboxyl radical, and containing at least one other carboxyl radical in the molecule, or of salts, anhydrides, esters, amides, imides or nitriles thereofCompositions of derivatives of such polymers

79.

POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE, AND LITHIUM SECONDARY BATTERY

      
Application Number KR2024016822
Publication Number 2025/095584
Status In Force
Filing Date 2024-10-30
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Sun Woo
  • Jung, Byoung Hun
  • Ham, Mi Rim
  • Lim, Chae Jin
  • Ye, Seong Ji
  • Lee, Jun Won
  • Kim, Seong Wook

Abstract

abcdef22. In chemical formula 1, M is Cr, Nb, Mg, Hf, Ta, La, Sr, Ba, Zn, F, P, S, Y, W, Mo, B, or a combination thereof, 0.8≤a≤1.2, 0.6≤b<1.0, 0.2≤c≤0.5, 0

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 4/131 - 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

80.

APPARATUS AND METHOD FOR DETECTING AND ANALYZING FOREIGN SUBSTANCES IN CATHODE

      
Application Number KR2024016968
Publication Number 2025/095648
Status In Force
Filing Date 2024-10-31
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Song, Han Sung
  • Bae, Sung Hak
  • Choi, Ik Jin
  • Nho, Hyun Woo
  • Nam, Gyeong Hyeon
  • Lee, Min Young
  • Kim, Dong Ju
  • Lee, Yoh Hann

Abstract

The present invention relates to an apparatus and a method for detecting and analyzing foreign substances in a cathode, the apparatus comprising: a first camera which partitions, into a predetermined area, a cathode transported in one direction, and captures same; an image processing processor, which processes an image of the predetermined area captured by the first camera, so as to specify the location at which foreign substances are formed; a second camera for capturing the foreign substances specified by the image processing processor; and a spectrum processing processor, which analyzes spectrum signals of images of the foreign substances captured by the second camera, so as to classify the composition of the foreign substances.

IPC Classes  ?

  • G01N 21/88 - Investigating the presence of flaws, defects or contamination
  • G01N 21/89 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles
  • G01N 21/892 - Investigating the presence of flaws, defects or contamination in moving material, e.g. paper, textiles characterised by the flaw, defect or object feature examined
  • G01N 21/94 - Investigating contamination, e.g. dust

81.

CATHODE ACTIVE MATERIAL, MANUFACTURING METHOD THEREFOR, AND CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

      
Application Number KR2024017099
Publication Number 2025/095710
Status In Force
Filing Date 2024-11-01
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Jee Ho
  • Kim, Min Hoon
  • Ha, Seoung Chul
  • You, Min Kyu
  • Shin, Ji A
  • Lim, Seung Woo
  • Seok, Eun Jeong
  • Kim, Yern Seung
  • Kim, Sang Hun
  • Kim, Dong Chan

Abstract

The present invention relates to a cathode active material in which primary particles have a uniform particle diameter, resulting in a small amount of fine powder, and there is little particle breakage during a fine grinding process and a rolling process for manufacturing a lithium secondary battery. The present invention relates to: a cathode active material; a manufacturing method therefor; and a cathode and a lithium secondary battery, comprising same, in which the cathode active material comprises a lithium nickel cobalt manganese-based oxide containing, among the total transition metals, nickel at a content of 50 mol% or more, and in the form of a single-particle consisting of 10 or less of primary particles, and has a polydispersity index (PDI) value of 1.0 to 1.8 according to equation 1 described in the present specification.

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
  • C01G 53/00 - Compounds of nickel
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
  • H01M 4/02 - Electrodes composed of, or comprising, active material

82.

CATHODE ACTIVE MATERIAL, PREPARATION METHOD THEREFOR, AND CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

      
Application Number KR2024017100
Publication Number 2025/095711
Status In Force
Filing Date 2024-11-01
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Shin, Ji A
  • Heo, Un Seon
  • Lee, Jee Ho
  • Kim, Sun Cheol
  • Lim, Seung Woo
  • Shin, Ye Won
  • You, Min Kyu

Abstract

The present invention relates to: a cathode active material capable of improving the performance of a lithium secondary battery; a preparation method therefor; and a cathode and a lithium secondary battery, comprising same, wherein the cathode active material comprises: a lithium composite transition metal oxide in the form of a single particle consisting of 10 or less of primary particles, and containing, among the total transition metals excluding lithium, nickel at a content of 50 mol% or more; and a coating layer formed on the lithium composite transition metal oxide and including aluminum (Al) and tungsten (W).

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
  • C01G 53/00 - Compounds of nickel
  • C30B 29/22 - Complex oxides
  • H01M 4/02 - Electrodes composed of, or comprising, active material

83.

POSITIVE ELECTRODE ACTIVE MATERIAL AND PREPARATION METHOD THEREFOR

      
Application Number KR2024016618
Publication Number 2025/095520
Status In Force
Filing Date 2024-10-29
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Jong Hyun
  • Yoon, Seok Hyun

Abstract

A positive electrode active material, according to one embodiment of the present invention, is a positive electrode active material comprising a high-Ni metal oxide and may comprise: a first metal element having an oxidation number of +6; a second metal element having an oxidation number of +5; a third metal element having an oxidation number of +4; and a fourth metal element having an oxidation number of +2 or +3.

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 4/02 - Electrodes composed of, or comprising, active material

84.

POSITIVE ELECTRODE MATERIAL AND METHOD FOR MANUFACTURING SAME

      
Application Number KR2024016620
Publication Number 2025/095522
Status In Force
Filing Date 2024-10-29
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Han, Song Yi
  • Lee, June Woo
  • Lee, Kyung Lok
  • Ha, Seoung Chul
  • Shin, Hye Won
  • Kang, Hyuk
  • You, Min Kyu

Abstract

The positive electrode material of the present invention includes a first positive electrode active material and a second positive electrode active material. Each positive electrode active material includes a lithium transition metal composite oxide including 60 mol% or more of nickel, and includes a boron coating portion formed on the surface of the lithium transition metal composite oxide. By including a positive electrode active material in which the B/Ni ratio of the surface is appropriately controlled according to the average particle diameter of the positive electrode active material, an increase in the viscosity of a slurry manufactured by subsequent processes is reduced.

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
  • 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

85.

VACUUM CONDENSATION DRYING DEVICE

      
Application Number KR2024016739
Publication Number 2025/095556
Status In Force
Filing Date 2024-10-30
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Hongseok
  • Kwon, Hyun Jee
  • Kang, Mooseong
  • Choi, Jaehoon

Abstract

An electric heating reactor is disclosed. The electric heating reactor may comprise: a reaction tube having a first passage which is formed in the longitudinal direction within the reaction tube and through which reactants pass; a pair of connection tubes coupled to both longitudinal ends of the reaction tube respectively, electrically connected to the reaction tube, and each having a second passage connected to the first passage; a power supply configured to supply power to the reaction tube so as to heat the reactants passing through the first passage within the reaction tube; and a pair of conductive sockets electrically connecting the pair of connection tubes to the power supply respectively.

IPC Classes  ?

  • B01J 19/32 - Packing elements in the form of grids or built-up elements for forming a unit or module inside the apparatus for mass or heat transfer
  • B01J 19/24 - Stationary reactors without moving elements inside
  • B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus

86.

CATHODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SAME, AND CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

      
Application Number KR2024016821
Publication Number 2025/095583
Status In Force
Filing Date 2024-10-30
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Sun Cheol
  • Seok, Eun Jeong
  • Ha, Seoung Chul
  • Shin, Ye Won
  • You, Min Kyu
  • Kim, Min Hoon
  • Heo, Un Seon
  • Lim, Seung Woo

Abstract

The present invention relates to a cathode active material that has a uniform particle diameter, and thus can improve capacity, initial efficiency, lifespan, and resistance performance of a battery, and to: a cathode active material; a method for manufacturing same; and a cathode and a lithium secondary battery, comprising same, the cathode active material including a lithium nickel cobalt manganese-based oxide in the form of a single-particle doped with Zr and Y, and having a polydispersity index (PDI) value of 1.0 to 2.0 according to equation 1 described in the present specification.

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 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
  • H01M 4/02 - Electrodes composed of, or comprising, active material

87.

CATHODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SAME, AND CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

      
Application Number KR2024016913
Publication Number 2025/095623
Status In Force
Filing Date 2024-10-31
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Shin, Ji A
  • Heo, Un Seon
  • Lee, Jee Ho
  • Kim, Sun Cheol
  • Lim, Seung Woo
  • Shin, Ye Won
  • You, Min Kyu

Abstract

5050) of the primary particles is 2.0-3.5 µm.

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 53/00 - Compounds of nickel
  • 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

88.

CONJUGATED DIENE-BASED POLYMER AND RUBBER COMPOSITION

      
Application Number KR2024017097
Publication Number 2025/095708
Status In Force
Filing Date 2024-11-01
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kang, Suk Youn
  • Lee, Tae Chul
  • Kim, Dong Hui
  • Park, Sung Hyun

Abstract

The present invention relates to: a conjugated diene-based polymer which is a linear conjugated diene-based polymer having a branch introduced thereto to retain the physical properties of the conjugated diene-based polymer, except for processability, comparable with those of a conjugated diene-based polymer having high linearity and thus superbly maintains the compounding properties in a rubber composition and also exhibits improved processability; and a rubber composition comprising the conjugated diene-based polymer.

IPC Classes  ?

  • C08F 136/06 - Butadiene
  • C08F 4/52 - 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 selected from boron, aluminium, gallium, indium, thallium, or rare earths
  • C08F 2/00 - Processes of polymerisation

89.

CONJUGATED DIENE-BASED POLYMER AND RUBBER COMPOSITION

      
Application Number KR2024017098
Publication Number 2025/095709
Status In Force
Filing Date 2024-11-01
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kang, Suk Youn
  • Lee, Tae Chul
  • Choi, Seo Won
  • Sohn, Hae Sung
  • Park, Sung Ho

Abstract

The present invention relates to: a conjugated diene-based polymer which is a linear conjugated diene-based polymer having a branch introduced thereto to retain the physical properties of the conjugated diene-based polymer, except for processability, comparable with those of a conjugated diene-based polymer having high linearity and thus superbly maintains the compounding properties in a rubber composition and also exhibits improved processability; and a rubber composition comprising the conjugated diene-based polymer.

IPC Classes  ?

  • C08F 36/06 - Butadiene
  • C08F 4/52 - 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 selected from boron, aluminium, gallium, indium, thallium, or rare earths
  • C08F 2/00 - Processes of polymerisation
  • C08F 136/06 - Butadiene

90.

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

      
Application Number KR2024017103
Publication Number 2025/095714
Status In Force
Filing Date 2024-11-01
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Heo, Un Seon
  • You, Min Kyu
  • Ha, Seoung Chul
  • Kim, Min Hoon
  • Seok, Eun Jeong
  • Shin, Ji A
  • Lim, Seung Woo
  • Shin, Ye Won
  • Kim, Yern Seung
  • Kim, Sang Hun
  • Kim, Dong Chan

Abstract

v,50v,50 of 2.2 ㎛ to 3.7 ㎛ as derived from an SEM image and a small particle fraction of 5% to 10% according to Equation 1 described in the present specification.

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 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
  • H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
  • H01M 4/02 - Electrodes composed of, or comprising, active material

91.

POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SAME, AND POSITIVE ELECTRODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

      
Application Number KR2024017107
Publication Number 2025/095715
Status In Force
Filing Date 2024-11-04
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ha, Seoung Chul
  • Kim, Min Hoon
  • Seok, Eun Jeong
  • You, Min Kyu
  • Shin, Ji A
  • Heo, Un Seon
  • Lee, Jee Ho
  • Kim, Sun Cheol
  • Lim, Seung Woo
  • Shin, Ye Won

Abstract

The present invention relates to a positive electrode active material, a method for manufacturing same, and a positive electrode and a lithium secondary battery comprising same, wherein the positive electrode active material comprises a lithium composite transition metal oxide which is in the form of a single particle consisting of 10 or less primary particles and contains 50 mol % or more of nickel among all metals except lithium. The positive electrode active material has a single crystallinity (χ) of 0.500 or more and 0.850 or less according to formula 1 described in the present specification, and a crystal grain size (D) of 2.00 ㎛ or more and 5.00 ㎛ or less.

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
  • C01G 53/00 - Compounds of nickel
  • 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

92.

CATHODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, AND CATHODE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

      
Application Number KR2024096452
Publication Number 2025/095762
Status In Force
Filing Date 2024-10-31
Publication Date 2025-05-08
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lim, Seung Woo
  • Shin, Ji A
  • Heo, Un Seon
  • Lee, Jee Ho
  • Kim, Sun Cheol
  • Shin, Ye Won
  • You, Min Kyu

Abstract

The present invention relates to a cathode active material, a method for preparing same, and a cathode and a lithium secondary battery comprising same, the cathode active material comprising: a lithium composite transition metal oxide in a single particle form consisting of 10 or less primary particles and having a composition represented by chemical formula 1 described in the present specification; and a coating layer containing a coating element (M) formed on the lithium composite transition metal oxide, the coating element (M) being at least one selected from Al, W, Cu, Zr, Ni, Co. Sr. Mn, Y, Ti, Mg, Mo, B, Sn, Fe, Zn, and Si, wherein the cathode active material has a degree of single-particle formation (χ) exceeding 0.5 according to formula 1 described in the present specification.

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
  • C01G 53/00 - Compounds of nickel
  • 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

93.

THERMOPLASTIC RESIN COMPOSITION, PREPARATION METHOD THEREFOR, AND MOLDED ARTICLE INCLUDING SAME

      
Application Number KR2024011519
Publication Number 2025/089571
Status In Force
Filing Date 2024-08-05
Publication Date 2025-05-01
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Chun Ho
  • Kim, Seo Hwa
  • Cho, Yun Kyoung
  • An, Yong Hee
  • Kim, Ho Hoon
  • Jang, Jeongmin
  • Hwang, Hyeri

Abstract

The present disclosure relates to a thermoplastic resin composition, a method for preparing same, and a molded article including same and, more specifically, to a thermoplastic resin composition, a method for preparing same, and a molded article including same, the thermoplastic resin composition comprising: 100 parts by weight of a base resin including (A) 25 to 75 wt% of at least one copolymer selected from the group consisting of a copolymer (a-1) comprising alkyl acrylate rubber, an aromatic vinyl compound, and a vinyl cyanide compound, with an average particle diameter of 50 to 150 nm, a copolymer (a-2) comprising alkyl acrylate rubber, an aromatic vinyl compound, and a vinyl cyanide compound, with an average particle diameter of 150 nm (exclusive) to 600 nm (inclusive), and a copolymer (a-3) comprising alkyl acrylate rubber, an aromatic vinyl compound, and a vinyl cyanide compound, with an average particle diameter of 50 to 120 nm and (B) 25 to 75 wt% of at least one matrix resin selected from the group consisting of an aromatic vinyl compound-vinyl cyanide compound copolymer (b-1) and an (meth)acrylate ester polymer (b-2); and (C) 0.3 to 2 parts by weight of a pentaerythritol-based lubricant, wherein the graft copolymer (A-3) has an alkyl acrylate coverage (X) value of 65 wt% or higher as calculated by mathematical formula 1. Provided according to the present invention are a thermoplastic resin composition, a method for preparing same, and a molded article comprising same, wherein the thermoplastic resin composition exhibits processing performance comparable to or better than conventional PVC resins for calendaring, without the occurrence of flow marks, bubbles, and plate-out, thereby ensuring excellent surface quality and can be calendar-processed with existing calendaring equipment.

IPC Classes  ?

  • 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
  • C08L 25/12 - Copolymers of styrene with unsaturated nitriles
  • C08K 5/10 - EstersEther-esters
  • C08K 5/053 - Polyhydroxylic alcohols

94.

METHOD FOR MANUFACTURING ELECTRODE-INTEGRATED SEPARATOR FOR LITHIUM SECONDARY BATTERY

      
Application Number KR2024016035
Publication Number 2025/089737
Status In Force
Filing Date 2024-10-22
Publication Date 2025-05-01
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Daeho
  • Koo, Beom Mo
  • Lee, Seung Heon
  • Park, Youngjin

Abstract

The present invention relates to a method for manufacturing an electrode-integrated separator for a lithium secondary battery, the method comprising the steps of: forming a binder coating layer by applying, onto an electrode substrate, a binder solution containing a first polymer binder; and forming a porous layer by applying, onto the binder coating layer, a slurry containing a second polymer binder and inorganic fine particles, wherein the binder solution has a viscosity of 1000-9500 cP at 25 °C.

IPC Classes  ?

  • H01M 50/46 - Separators, membranes or diaphragms characterised by their combination with electrodes
  • H01M 50/403 - Manufacturing processes of separators, membranes or diaphragms
  • H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/449 - Separators, membranes or diaphragms characterised by the material having a layered structure
  • H01M 50/414 - Synthetic resins, e.g. .thermoplastics or thermosetting resins
  • H01M 50/431 - Inorganic material
  • H01M 10/052 - Li-accumulators

95.

RESIN COMPOSITION AND METHOD FOR PREPARING SAME

      
Application Number KR2024016085
Publication Number 2025/089748
Status In Force
Filing Date 2024-10-22
Publication Date 2025-05-01
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Chang Hoe
  • Heo, Jae Won
  • Kim, Yoo Vin
  • Han, Hye Soo
  • Lee, Ji Eun
  • Lim, Jong Won

Abstract

50LRLLLRLLL is the average light intensity.

IPC Classes  ?

96.

RESIN COMPOSITION AND PREPARATION METHOD THEREFOR

      
Application Number KR2024016087
Publication Number 2025/089750
Status In Force
Filing Date 2024-10-22
Publication Date 2025-05-01
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lim, Jong Won
  • Heo, Jae Won
  • Kim, Yoo Vin
  • Han, Hye Soo
  • Kim, Chang Hoe
  • Lee, Ji Eun

Abstract

5050), and an average H-W ratio, and the first matrix copolymer includes an aromatic vinyl-based monomer unit, a vinyl cyanide-based monomer unit, and an alkyl (meth) acrylate monomer unit, whereby the resin composition is superb in terms of mechanical properties such as surface characteristics, matte properties, and scratch resistance.

IPC Classes  ?

97.

POSITIVE ELECTRODE MATERIAL AND METHOD FOR MANUFACTURING SAME

      
Application Number KR2024016348
Publication Number 2025/089854
Status In Force
Filing Date 2024-10-24
Publication Date 2025-05-01
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kwak, No Woo
  • Eom, Jun Ho
  • Yoon, Jong Seol
  • Park, Yoon Bin
  • Rhee, Tae Young
  • Son, Sang Woo
  • Oh, Myoung Hwan
  • Lee, Min Joon
  • Lee, Jae Sang
  • Ahn, Jun Tae

Abstract

The present invention relates to a positive electrode material comprising a single-particle positive electrode active material, and a method for manufacturing same. As a result of EPMA analysis, a high Mn concentration region is observed in the single-particle positive electrode active material.

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
  • C01G 53/00 - Compounds of nickel
  • H01M 4/02 - Electrodes composed of, or comprising, active material

98.

CARBON NANOTUBE AND MANUFACTURING METHOD THEREFOR

      
Application Number KR2024015302
Publication Number 2025/089675
Status In Force
Filing Date 2024-10-08
Publication Date 2025-05-01
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Na, You Wan
  • Kim, Young Joo
  • Kim, Sung Jin
  • Kim, Se Hyun

Abstract

The present invention relates to carbon nanotubes satisfying a specific formula. The carbon nanotubes of the present invention are produced with excellent efficiency while exhibiting excellent electrical conductivity.

IPC Classes  ?

99.

COMPOSITE MATERIAL

      
Application Number KR2024016314
Publication Number 2025/089836
Status In Force
Filing Date 2024-10-24
Publication Date 2025-05-01
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Im, Dam Hyeok
  • Yoon, Jung Hwan
  • Um, Jun Geun
  • Jung, Jin Mi
  • Moon, Sung Nam
  • Jeon, Ki Ung

Abstract

Disclosed in the present specification are a composite material and a use thereof. In one example, the composite material is a composite material in which a metal plate and a plastic plate are bonded to each other, and may be a composite material having a cavity at the bonding interface between the metal plate and the plastic plate. According to the disclosure in the present specification, when the composite material is used as a heat dissipation material (for example, a heat sink) in which a fluid such as a cooling medium moves into the cavity, the cavity can be designed so that the fluid can perform stable and effective heat exchange with a heating element, etc. In addition, according to the disclosure in the present specification, high airtightness can be secured in the cavity so that the heat exchange performance can be maintained for a long period of time without loss. According to the disclosure in the present specification, even when the composite material is manufactured to have a large area or a large size, excellent heat exchange performance, and durability due to airtightness can be exhibited. Disclosed in the present specification is also a use of the composite material.

IPC Classes  ?

  • B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
  • B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
  • H01M 50/10 - Primary casingsJackets or wrappings
  • H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange

100.

BEAM SPLITTER

      
Application Number KR2024015964
Publication Number 2025/084870
Status In Force
Filing Date 2024-10-21
Publication Date 2025-04-24
Owner LG CHEM, LTD. (Republic of Korea)
Inventor Lee, Yeon Keun

Abstract

The present specification discloses a beam splitter and a use thereof. The beam splitter can split a beam from a light source into multiple beams having desired shapes and intensities, and can be implemented to have a simple structure through a simple process. The beam splitter may be employed to construct, for example, facial recognition devices or various sensing devices for 3D mapping.

IPC Classes  ?

  • 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
  • G02B 27/10 - Beam splitting or combining systems
  • G03B 21/00 - Projectors or projection-type viewersAccessories therefor
  • G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
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