LG Chem, Ltd.

Republic of Korea

Back to Profile

1-100 of 17,212 for LG Chem, Ltd. and 3 subsidiaries Sort by
Query
Aggregations
IP Type
        Patent 17,128
        Trademark 84
Jurisdiction
        World 11,134
        United States 5,937
        Canada 128
        Europe 13
Owner / Subsidiary
[Owner] LG Chem, Ltd. 17,131
FarmHannong Co., Ltd. 69
Uniseal, Inc. 19
Farm Hannong Co., Ltd. 3
Date
New (last 4 weeks) 87
2024 March (MTD) 80
2024 February 48
2024 January 63
2023 December 61
See more
IPC Class
H01L 51/00 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof 1,458
H01L 51/50 - Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED) 1,174
H01M 10/052 - Li-accumulators 1,132
H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders 980
C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials 787
See more
NICE Class
05 - Pharmaceutical, veterinary and sanitary products 46
01 - Chemical and biological materials for industrial, scientific and agricultural use 34
17 - Rubber and plastic; packing and insulating materials 21
40 - Treatment of materials; recycling, air and water treatment, 9
31 - Agricultural products; live animals 5
See more
Status
Pending 1,439
Registered / In Force 15,773
  1     2     3     ...     100        Next Page

1.

POLYETHYLENE FOR PREPARING FIBER AND PREPARATION METHOD OF THE SAME

      
Application Number 18273677
Status Pending
Filing Date 2022-02-18
First Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Song, Christine Jisoo
  • Yoon, Jiwon
  • Choi, Yi Young

Abstract

The present disclosure relates to a polyethylene suitable for preparing fibers with enhanced yellow index and filterability in the spinning process by having improved aging lifetime of the polyethylene, and a preparation method of the same.

IPC Classes  ?

  • C08F 10/02 - Ethene
  • C08F 4/659 - Component covered by group containing a transition metal-carbon bond

2.

POLYCARBONATE, AND METHOD FOR PREPARING SAME

      
Application Number 18273518
Status Pending
Filing Date 2022-01-07
First Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jeong, Jaemyeng
  • Lee, Hoyong
  • Song, Cheol Jun
  • Kim, Bethy
  • Im, Seoyoung
  • Jang, Hanbit

Abstract

The present application relates to a polycarbonate including a unit represented by Chemical Formula 1a; and a unit represented by Chemical Formula 1b, a composition including the same and a molded article prepared from the composition.

IPC Classes  ?

  • C08G 64/16 - Aliphatic-aromatic or araliphatic polycarbonates
  • C08G 64/30 - General preparatory processes using carbonates

3.

ORGANIC LIGHT EMITTING DEVICE

      
Application Number 18038511
Status Pending
Filing Date 2022-02-21
First Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Minjun
  • Lee, Dong Hoon
  • Suh, Sang Duk
  • Kim, Young Seok
  • Kim, Donghee
  • Oh, Joongsuk
  • Lee, Da Jung

Abstract

Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device comprising: an anode; a cathode; and a light emitting layer therebetween, wherein the light emitting layer comprises a compound of Chemical Formula 1 and a compound of Chemical Formula 2: Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device comprising: an anode; a cathode; and a light emitting layer therebetween, wherein the light emitting layer comprises a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: any one of R′1 to R′12 is Chemical Formula 3, and the rest are hydrogen or deuterium: Provided is an organic light emitting device having improved driving voltage, efficiency and lifetime, the device comprising: an anode; a cathode; and a light emitting layer therebetween, wherein the light emitting layer comprises a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: any one of R′1 to R′12 is Chemical Formula 3, and the rest are hydrogen or deuterium: R1 is hydrogen, deuterium, or a substituted or unsubstituted C6-30 aryl or C2-60 heteroaryl containing one or more of N, O and S; Ar1, Ar2, Ar′1, and Ar′2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; and the other substituents are as defined in the specification.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • 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
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
  • 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
  • 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
  • C07C 211/54 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
  • C07D 307/91 - Dibenzofurans; Hydrogenated dibenzofurans
  • C07D 333/76 - Dibenzothiophenes
  • C07D 209/88 - Carbazoles; Hydrogenated carbazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
  • C07C 211/61 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton with at least one of the condensed ring systems formed by three or more rings
  • C07D 409/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links

4.

Curable Composition

      
Application Number 18274252
Status Pending
Filing Date 2022-10-07
First Publication Date 2024-03-28
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Kim, Bethy
  • Jung, Je Sik
  • Seo, Sang Hyuk
  • Hong, Sung Bum
  • Lee, Sol Yi

Abstract

A curable composition is capable of forming a thick film having excellent curing characteristics even at a relatively low temperature and is capable of securing an excellent level of thermal conductivity as well as a desired level of appropriate adhesion force while having fast curing characteristics. A battery pack to which the curable composition is applied, and a device comprising the battery pack are also provided.

IPC Classes  ?

  • 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
  • C08K 13/04 - Ingredients characterised by their shape and organic or inorganic ingredients
  • C09K 5/14 - Solid materials, e.g. powdery or granular
  • H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
  • H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
  • H01M 50/293 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material

5.

Ethylene/Alpha-Olefin Copolymer and Composition for Encapsulant Film Comprising the Same

      
Application Number 18273144
Status Pending
Filing Date 2022-10-28
First Publication Date 2024-03-28
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Gong, Jin Sam
  • Lee, Eun Jung
  • Jeong, Jeong Yon
  • Lee, Young Woo
  • Lee, Jung Kyu
  • Lee, Si Jung
  • Lee, Hye Ji

Abstract

An ethylene/alpha-olefin copolymer having excellent physical properties showing reduced immersion time of a crosslinking agent and a high degree of crosslinking, and a composition for an encapsulant film, comprising the same, is described herein.

IPC Classes  ?

  • C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
  • C08F 4/659 - Component covered by group containing a transition metal-carbon bond
  • C08F 4/6592 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring

6.

BORONIC ACID COMPOUNDS

      
Application Number 18256831
Status Pending
Filing Date 2021-12-10
First Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jung, Cheol Kyu
  • Kang, Seung Wan
  • Kim, Byung Gyu

Abstract

The present invention relates to a compound represented by Formula 1, a pharmaceutically acceptable salt thereof, or an isomer thereof, and a pharmaceutical composition for treating or preventing proteasome-mediated diseases, comprising the same as an active ingredient.

IPC Classes  ?

7.

POLYETHYLENE COMPOSITION AND BIAXIALLY STRETCHED FILM COMPRISING SAME

      
Application Number KR2023014459
Publication Number 2024/063586
Status In Force
Filing Date 2023-09-22
Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Cheol Hun
  • You, Youngsuk
  • Kim, Yeonsoo
  • Kim, Taejin
  • Lee, Sanghwa
  • Kim, Inkyo
  • Choi, Eun Yeob

Abstract

The present invention relates to a polyethylene composition which retains excellent mechanical properties and is suitable for a biaxially stretched film owing to excellent stretching stability and high shrinkage resistance.

IPC Classes  ?

  • C08L 23/08 - Copolymers of ethene
  • C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
  • C08F 210/14 - Monomers containing five or more carbon atoms
  • C08J 5/18 - Manufacture of films or sheets
  • B29C 55/12 - Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial

8.

NOVEL COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2023014472
Publication Number 2024/063592
Status In Force
Filing Date 2023-09-22
Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Young Seok
  • Kim, Minjun
  • Jung, Min Woo
  • Suh, Sang Duk
  • Kim, Donghee
  • Oh, Joongsuk
  • Kim, Soyeon

Abstract

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

IPC Classes  ?

  • C07D 493/04 - Ortho-condensed systems
  • 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

9.

INK COMPOSITION, ORGANIC MATERIAL LAYER COMPRISING SAME, AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2023014483
Publication Number 2024/063596
Status In Force
Filing Date 2023-09-22
Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Shin, Jiyeon
  • Kang, Eunhye
  • Lee, Keunsoo
  • Kim, Byungjae
  • Seo, Minseob
  • Lee, Ho Gyu

Abstract

The present invention relates to an ink composition, an organic material layer comprising same, and an organic light-emitting device comprising the organic material layer.

IPC Classes  ?

  • C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • H10K 50/155 - Hole transporting layers comprising dopants
  • H10K 50/17 - Carrier injection layers
  • H10K 50/18 - Carrier blocking layers
  • H10K 85/60 - Organic compounds having low molecular weight

10.

OPTICAL FILM

      
Application Number KR2023014543
Publication Number 2024/063610
Status In Force
Filing Date 2023-09-22
Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lim, Eun Jung
  • Lee, Ji Youn
  • Lee, Yeon Keun

Abstract

The present specification discloses a geometric phase optical element, a method for manufacturing same, and use thereof. The present specification discloses a geometric phase optical element suppressed to have no or very little wavelength dependence, a method for manufacturing same, and use thereof. The present specification discloses: a geometric phase optical element with no or little wavelength dependence by using a liquid crystal compound having a specific structure, controlling the thickness of a liquid crystal layer, and adjusting a manufacturing method; a method for manufacturing same; and use thereof.

IPC Classes  ?

  • G02F 1/1337 - Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
  • G02F 1/13363 - Birefringent elements, e.g. for optical compensation
  • G02B 5/18 - Diffracting gratings
  • G02F 1/13 - 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 modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
  • C09K 19/38 - Polymers, e.g. polyamides
  • C09K 19/42 - Mixtures of liquid crystal compounds covered by two or more of the preceding groups
  • G02B 27/01 - Head-up displays

11.

Preparation Method for Ethylene-Vinyl Alcohol Copolymer

      
Application Number 18274781
Status Pending
Filing Date 2022-09-27
First Publication Date 2024-03-28
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Song, Sungjin
  • Baek, Se Won
  • Bae, Hyojin
  • Kim, Bongjune

Abstract

A preparation method for an ethylene-vinyl alcohol copolymer capable of obtaining a high-purity ethylene-vinyl alcohol copolymer without an excessive washing process is described herein. According to the present disclosure, an efficiency of the washing process for obtaining the ethylene-vinyl alcohol copolymer after performing saponification on ethylene-vinyl acetate can be increased, thereby improving productivity, and minimizing the amount of wastewater generated.

IPC Classes  ?

12.

BATTERY CELL INCLUDING ELECTROLYTE ION CONCENTRATION MEASUREMENT UNIT AND METHOD FOR MEASURING ELECTROLYTE CONCENTRATION USING SAME

      
Application Number 18529843
Status Pending
Filing Date 2023-12-05
First Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor Choi, Soon Ju

Abstract

The present invention relates to a battery cell including an electrolyte ion concentration measurement unit and a method for measuring an electrolyte concentration using same. The battery cell according to the present invention comprises a measurement unit in which a first electrode plate, an insulation film, and a second electrode plate are sequentially stacked on one another, wherein the measurement unit is inserted between a separator of the battery cell and an electrode thereof, and thus can directly measure an electrolyte concentration between the separator and the electrode. Therefore, the battery cell can be simply manufactured and has excellent stability. In addition, according to the present invention, the method for measuring an electrolyte concentration of a secondary battery using the battery cell enables measurement of electrolyte concentration in real time even during the use of the battery and can measure an electrolyte concentration of the separator more accurately and quickly than a conventional technology.

IPC Classes  ?

  • H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
  • G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
  • 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 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals

13.

Roll Mill for Super Absorbent Polymer and Method for Preparing Super Absorbent Polymer Using the Same

      
Application Number 18270310
Status Pending
Filing Date 2022-07-08
First Publication Date 2024-03-28
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Baek, Seokhyeon
  • Kim, Gicheul
  • Min, Yoon Jae

Abstract

A roll mill for super absorbent polymer that grinds introduced super absorbent polymer particles and discharges them. The roll mill for super absorbent polymer includes at least one pair of rollers that have plural corrugations formed on each outer perimeter surface of the roller, and are arranged parallel to each other while being spaced by a roll gap, and the number of corrugations per unit circumference of the roller may be 0.89/mm˜1.15/mm. Also disclosed is a method for preparing super absorbent polymer using the roll mill.

IPC Classes  ?

  • B29B 13/10 - Conditioning or physical treatment of the material to be shaped by filtering
  • B29B 7/58 - Component parts, details or accessories; Auxiliary operations
  • B29B 9/12 - Making granules characterised by structure or composition
  • C08F 120/06 - Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
  • C08J 3/075 - Macromolecular gels
  • C08J 3/12 - Powdering or granulating

14.

Polypropylene Resin Composition and Method for Preparing the Same

      
Application Number 18269358
Status Pending
Filing Date 2022-03-25
First Publication Date 2024-03-28
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Noh, Kyung Seop
  • Park, Heekwang
  • Chae, Seong Min
  • Ye, Jihwa

Abstract

In the present disclosure, there are provided a polypropylene resin composition including an ethylene propylene copolymer, and a method of preparing the same. In particular, the polypropylene resin composition of the present disclosure may be prepared by using a continuous reactor in the presence of a metallocene compound having a specific structure. The polypropylene resin composition of the present disclosure can exhibit high transparency together with excellent elongation by optimizing the xylene soluble, the content of ethylene, and the melt index, together with a narrow molecular weight distribution.

IPC Classes  ?

  • C08F 110/06 - Propene
  • C08F 2/00 - Processes of polymerisation
  • C08F 4/6592 - Component covered by group containing a transition metal-carbon bond containing at least one cyclopentadienyl ring, condensed or not, e.g. an indenyl or a fluorenyl ring
  • C08L 23/16 - Ethene-propene or ethene-propene-diene copolymers

15.

Methane-Reforming Catalyst and Method for Producing Same

      
Application Number 18275298
Status Pending
Filing Date 2022-07-27
First Publication Date 2024-03-28
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Kim, Sojin
  • Kim, Sangjin
  • Kim, Suji
  • Cho, Jun Yeon
  • Choi, Jae Soon
  • Choi, Jun Seon

Abstract

The catalyst for methane reformation according to an exemplary embodiment of the present application comprises: a porous metal support; perovskite-based catalyst particles supported on the porous metal support; and a perovskite-based binder supported on the porous metal support, and the perovskite-based catalyst particles and the perovskite-based binder each independently comprise the compound represented by Chemical Formula 1: The catalyst for methane reformation according to an exemplary embodiment of the present application comprises: a porous metal support; perovskite-based catalyst particles supported on the porous metal support; and a perovskite-based binder supported on the porous metal support, and the perovskite-based catalyst particles and the perovskite-based binder each independently comprise the compound represented by Chemical Formula 1: Sr1-xAxTi1-yByO3-δ  [Chemical Formula 1] wherein all the variables are described herein.

IPC Classes  ?

  • B01J 23/00 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
  • B01J 35/00 - Catalysts, in general, characterised by their form or physical properties
  • B01J 35/64 - Pore diameter
  • B01J 37/02 - Impregnation, coating or precipitation
  • C01B 3/40 - Production of hydrogen or of gaseous mixtures containing hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using catalysts characterised by the catalyst

16.

Modified Conjugated Diene-Based Polymer, Method for Preparing the Same and Rubber Composition Including the Same

      
Application Number 17767992
Status Pending
Filing Date 2021-02-26
First Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Oh, Jung Hwan
  • Lee, Ho Young
  • Choi, Jae Sun

Abstract

The present invention relates to a modified conjugated diene-based polymer having excellent rolling resistance and improved processability, a method for preparing the same and a rubber composition including the same, and provides a modified conjugated diene-based polymer which includes a repeating unit derived from a conjugated diene-based monomer, and a functional group derived from a modifier, and satisfies conditions (i) to (vii), a method for preparing the same and a rubber composition including the same.

IPC Classes  ?

  • C08F 297/04 - Macromolecular compounds obtained by successively polymerising different monomer systems using a catalyst of the ionic or coordination type without deactivating the intermediate polymer using a catalyst of the anionic type polymerising vinyl aromatic monomers and conjugated dienes
  • C08K 13/02 - Organic and inorganic ingredients

17.

COMPOSITE FILLER, AND PRODUCT USING THE SAME

      
Application Number 18263296
Status Pending
Filing Date 2022-10-31
First Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Yunseop
  • Kim, Lucia
  • Kim, Jee Seon

Abstract

The present disclosure relates to a composite filler comprising: porous inorganic particles including a sintered body of calcium-based particles and pores distributed in the sintered body; and a biodegradable carrier, and a product including the same.

IPC Classes  ?

  • A61K 8/19 - Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K 8/02 - Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K 8/73 - Polysaccharides
  • A61Q 19/00 - Preparations for care of the skin

18.

Electrode Binder Composition for Rechargeable Battery and Electrode Mixture Including the Same

      
Application Number 18267283
Status Pending
Filing Date 2021-12-17
First Publication Date 2024-03-28
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Woo, Jungeun
  • Kang, Min Ah
  • Son, Jeong Man
  • Lee, Sungjin
  • Han, Seon Hee

Abstract

The present disclosure relates to an electrode binder composition for a rechargeable battery and an electrode mixture including the same. The electrode binder composition comprising an emulsified polymer particle having a core-shell structure can maintain a structural stability of the electrode even in repeated charge and discharge cycles, while having excellent properties in terms of a binding force, a mechanical property or the like, thereby improving the overall performance of the rechargeable battery.

IPC Classes  ?

  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • C08F 265/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of unsaturated monocarboxylic acids or derivatives thereof as defined in group on to polymers of acids, salts or anhydrides
  • H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx

19.

Compound And Organic Light Emitting Device Comprising The Same

      
Application Number 18271329
Status Pending
Filing Date 2022-03-08
First Publication Date 2024-03-28
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lim, Byeong Yun
  • Lee, Jaechol
  • Kim, Yongwook
  • Yu, Soyoung
  • Kim, Shin Sung
  • Kim, Young Kwang
  • Park, Hyungil

Abstract

The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: wherein A1 to A4, X, Y, n1 and n2 are described herein.

IPC Classes  ?

  • C07F 5/02 - Boron compounds
  • H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
  • H10K 85/60 - Organic compounds having low molecular weight

20.

Crosslinked Structure-Containing Polyolefin Porous Substrate, Method for Manufacturing the Same, and Crosslinked Structure-Containing Separator for Lithium Secondary Battery Including the Same

      
Application Number 18266045
Status Pending
Filing Date 2021-12-17
First Publication Date 2024-03-28
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Han, Sung-Jae
  • Lee, Joo-Sung
  • Mun, Sung Cik

Abstract

A crosslinked structure-containing polyolefin porous substrate is provided. The crosslinked structure-containing polyolefin porous substrate has a crosslinked structure including polymer chains interconnected directly with one another, wherein the polyolefin porous substrate includes, in a height direction extending from one surface to the other surface, a first region contacted with the one surface and a second region extended from an outside of the first region toward the other surface. Polyolefin contained in the first region and polyolefin contained in the second region have a difference in crosslinking degree of 10% or more. A method for manufacturing the crosslinked structure-containing polyolefin porous substrate is also provided. Even though the separator including the crosslinked structure-containing polyolefin porous substrate has a crosslinked structure, it shows a low shutdown temperature and a high meltdown temperature.

IPC Classes  ?

  • 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 50/417 - Polyolefins
  • 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

21.

POLYETHYLENE COMPOSITION AND BIAXIALLY STRETCHED FILM COMPRISING SAME

      
Application Number KR2023009161
Publication Number 2024/063269
Status In Force
Filing Date 2023-06-29
Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Taejin
  • You, Youngsuk
  • Kim, Yeonsoo
  • Lee, Sanghwa
  • Kim, Inkyo
  • Park, Cheol Hun
  • Choi, Eun Yeob

Abstract

The present invention relates to: a polyethylene composition which maintains excellent mechanical properties, productivity, and printability, and is suitable for a biaxially stretched film with excellent stretching stability and high shrinkage resistance; and a biaxially stretched film comprising same.

IPC Classes  ?

  • C08L 23/08 - Copolymers of ethene
  • C08J 5/18 - Manufacture of films or sheets
  • B29C 55/12 - Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
  • C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
  • C08F 210/14 - Monomers containing five or more carbon atoms

22.

EVALUATION DEVICE AND EVALUATION METHOD FOR THERMAL SHRINKAGE OF SEPARATOR

      
Application Number KR2023012534
Publication Number 2024/063356
Status In Force
Filing Date 2023-08-24
Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Moon, Jae Young
  • Bae, Sung Hak
  • Jeon, Sang Hyuk

Abstract

The present invention relates to an evaluation device and an evaluation method for the thermal shrinkage of a separator, which enable the thermal shrinkage of a separator to be easily evaluated.

IPC Classes  ?

  • G01N 25/16 - Investigating or analysing materials by the use of thermal means by investigating thermal coefficient of expansion
  • G01B 11/02 - Measuring arrangements characterised by the use of optical techniques for measuring length, width, or thickness
  • G01B 11/16 - Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
  • 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

23.

INK COMPOSITION, ORGANIC MATERIAL LAYER COMPRISING SAME, AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2023014482
Publication Number 2024/063595
Status In Force
Filing Date 2023-09-22
Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Shin, Jiyeon
  • Kang, Eunhye
  • Lee, Keunsoo
  • Kim, Byungjae
  • Park, Youngju
  • Lee, Ho Gyu

Abstract

The present invention relates to an ink composition, an organic material layer comprising same, and an organic light-emitting device comprising the organic material layer.

IPC Classes  ?

  • C09D 11/03 - Printing inks characterised by features other than the chemical nature of the binder
  • C09D 11/033 - Printing inks characterised by features other than the chemical nature of the binder characterised by the solvent
  • H10K 50/155 - Hole transporting layers comprising dopants
  • H10K 50/17 - Carrier injection layers
  • H10K 50/18 - Carrier blocking layers
  • H10K 85/60 - Organic compounds having low molecular weight
  • H10K 85/40 - Organosilicon compounds, e.g. TIPS pentacene
  • H10K 85/30 - Coordination compounds

24.

CATALYST FOR PREPARING UNSATURATED CARBOXYLIC ACIDS AND DERIVATIVES THEROF

      
Application Number KR2023013441
Publication Number 2024/063412
Status In Force
Filing Date 2023-09-07
Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Bang, Jungup
  • Kim, Jaeyoung
  • Byun, Wonbae
  • Choi, Jae Soon
  • Kim, Mahnjung
  • Song, Cheolock
  • Kim, Mira

Abstract

The present invention provides a catalyst for preparing unsaturated carboxylic acids and derivatives thereof, which can be used to produce unsaturated carboxylic acids and derivatives thereof at high yields for a long time during the dehydration reaction of hydroxycarboxylic acids or derivatives thereof.

IPC Classes  ?

  • B01J 27/18 - Phosphorus; Compounds thereof containing oxygen with metals
  • B01J 37/03 - Precipitation; Co-precipitation
  • B01J 37/06 - Washing
  • B01J 37/00 - Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
  • C07C 51/377 - Preparation 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 acid; Methacrylic acid

25.

POLYETHYLENE COMPOSITION AND BIAXIALLY STRETCHED FILM COMPRISING SAME

      
Application Number KR2023013457
Publication Number 2024/063415
Status In Force
Filing Date 2023-09-07
Publication Date 2024-03-28
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Sanghwa
  • You, Youngsuk
  • Lee, Naeun
  • Kim, Taejin
  • Kim, Inkyo
  • Park, Cheol Hun
  • Choi, Eun Yeob

Abstract

The present invention relates to: a polyethylene composition which retains excellent mechanical properties and is suitable for a biaxially stretched film owing to excellent stretching stability and high shrinkage resistance; and a biaxially stretched film comprising same.

IPC Classes  ?

  • C08L 23/08 - Copolymers of ethene
  • C08J 5/18 - Manufacture of films or sheets
  • B29C 55/12 - Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial biaxial
  • C08F 210/16 - Copolymers of ethene with alpha-alkenes, e.g. EP rubbers
  • C08F 210/14 - Monomers containing five or more carbon atoms

26.

ORGANIC LIGHT EMITTING DEVICE

      
Application Number 18038527
Status Pending
Filing Date 2022-02-18
First Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Minjun
  • Lee, Dong Hoon
  • Suh, Sang Duk
  • Kim, Young Seok
  • Kim, Donghee
  • Oh, Joongsuk
  • Lee, Da Jung

Abstract

Provided is an organic light emitting device comprising an anode; a cathode; and a light emitting layer therebetween, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2, the device having improved driving voltage, efficiency and lifetime: Provided is an organic light emitting device comprising an anode; a cathode; and a light emitting layer therebetween, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2, the device having improved driving voltage, efficiency and lifetime: wherein: any one of R′1 to R′12 is Chemical Formula 3, and the rest are hydrogen or deuterium: Provided is an organic light emitting device comprising an anode; a cathode; and a light emitting layer therebetween, the light emitting layer comprising a compound of Chemical Formula 1 and a compound of Chemical Formula 2, the device having improved driving voltage, efficiency and lifetime: wherein: any one of R′1 to R′12 is Chemical Formula 3, and the rest are hydrogen or deuterium: Ar1, Ar2, Ar′1, and Ar′2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; R1 is hydrogen, deuterium, or a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing any one or more of N, O and S; and the other substituents are as defined in the specification.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials

27.

Absorbent Article

      
Application Number 18266063
Status Pending
Filing Date 2022-05-11
First Publication Date 2024-03-21
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Yoon, Kiyoul
  • Shin, Myoungjin
  • Kang, Seongkyun
  • Kim, Yu Jin
  • Kim, Gicheul

Abstract

Provided is an absorbent article exhibiting an improved effect of preventing the body fluid from leaking by including a superabsorbent polymer film having excellent absorbency in three-dimensional gathers.

IPC Classes  ?

  • A61F 13/494 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies characterised by edge leakage prevention means
  • A61F 13/49 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape specially adapted to be worn around the waist, e.g. diapers, nappies

28.

USE AS SELECTIVE AGONIST OF MELANOCORTIN-4 RECEPTOR

      
Application Number 18258653
Status Pending
Filing Date 2021-12-21
First Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Hee Dong
  • Yeo, Su Jin
  • Park, Hyun Seo
  • Park, Jin Sook
  • Ahn, Hye Won

Abstract

The present invention relates to use of a compound of chemical formula 1 or a pharmaceutically acceptable salt thereof as a selective agonist of the melanocortin-4-receptor (MC4R).

IPC Classes  ?

  • A61K 31/5377 - 1,4-Oxazines, e.g. morpholine not condensed and containing further heterocyclic rings, e.g. timolol

29.

METHOD FOR PREPARING ACRYLIC ACID

      
Application Number KR2023006774
Publication Number 2024/058338
Status In Force
Filing Date 2023-05-18
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lyu, Byeong Gil
  • Kim, Mi Kyung
  • Shin, Dae Young
  • Jung, Da Bin

Abstract

The present invention provides a method for preparing acrylic acid, comprising the steps of: obtaining a reaction product including unreacted lactic acid, water, light gas components, and acrylic acid, by supplying a lactic acid aqueous solution to a reactor to undergo a dehydration reaction; separating into a lower fraction containing unreacted lactic acid and an upper fraction containing water, light gas components, and acrylic acid, by supplying the reaction product to a first cooling tower; separating into a lower fraction containing water and acrylic acid, by suppling the upper fraction of the first cooling tower to a second cooling tower; and obtaining acrylic acid by purifying the lower fraction of the second cooling tower.

IPC Classes  ?

  • C07C 51/46 - Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
  • C07C 51/487 - Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
  • C07C 57/04 - Acrylic acid; Methacrylic acid

30.

POLYBUTYLENE TEREPHTHALATE RESIN COMPOSITION, METHOD FOR MANUFACTURING SAME, AND MOLDED PRODUCT MANUFACTURED THEREFROM

      
Application Number KR2023009651
Publication Number 2024/058384
Status In Force
Filing Date 2023-07-07
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Ji Heun
  • Park, Won Seok
  • Kwon, Tae Hun
  • Park, Jae Chan

Abstract

The present invention relates to a polybutylene terephthalate resin composition, a method for manufacturing same, and a molded product manufactured therefrom. The present invention provides an excellent physical property balance between mechanical strength and flame retardancy at a level equivalent to or higher than that of a polyester resin composite material including a halogen-based flame retardant, has excellent fluidity and processability, and is especially suitable as a material for automotive electrical components.

IPC Classes  ?

31.

POROUS POLYMER PARTICLE AND PROTEIN PURIFICATION COLUMN USING SAME

      
Application Number KR2023013849
Publication Number 2024/058579
Status In Force
Filing Date 2023-09-14
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Oh, Seungjun
  • Kim, Yeji
  • Kim, Minchae
  • Kim, Jee Seon

Abstract

The present invention relates to a porous polymer particle and a protein purification column using same, the particle comprising a polymer matrix and pores, which are dispersed in the polymer matrix and have a diameter of 50-500 nm, wherein the amount of epoxy included in 1g of the porous polymer particle is 500 umol or more and less than 5000 umol.

IPC Classes  ?

  • C08J 9/16 - Making expandable particles
  • C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
  • C08F 2/22 - Emulsion polymerisation
  • C08F 2/44 - Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
  • C08F 2/01 - Processes of polymerisation characterised by special features of the polymerisation apparatus used
  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties

32.

CURABLE COMPOSITION

      
Application Number KR2023013858
Publication Number 2024/058581
Status In Force
Filing Date 2023-09-15
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Jeong Hyun
  • Son, Ho Yeon
  • Jun, Shin Hee
  • Kim, Se Hoon

Abstract

The present application provides a curable composition, a thermal interface material (TIM), and a use thereof. In the present application, it is possible to enable the curable composition or thermal interface material to exhibit high thermal conductivity and low adhesion with respect to a certain adherend. In addition, in the present application, it is possible to achieve the low adhesion without using an adhesion adjusting component such as a plasticizer, or while minimizing the use ratio of the adhesion adjusting component. In the present application, it is also possible to enable the curable composition to exhibit a precisely controlled curing speed and at the same time have excellent curing properties. In the present application, it is additionally possible to provide a product comprising the curable composition, a cured body thereof, or a thermal interface material.

IPC Classes  ?

  • C08K 5/37 - Thiols
  • C08K 5/09 - Carboxylic acids; Metal salts thereof; Anhydrides thereof
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • C08G 18/72 - Polyisocyanates or polyisothiocyanates

33.

COMPOUND AND METHOD FOR IDENTIFYING IMPURITIES INCLUDED THEREIN

      
Application Number KR2023013917
Publication Number 2024/058602
Status In Force
Filing Date 2023-09-15
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Saebomi
  • Kang, Yeonjoo
  • Jang, Bomee
  • Han, Su Youn
  • Kang, Soonhee
  • Lee, Ji Seok
  • Choi, Hyungsam

Abstract

The present invention relates to a compound and a method for identifying impurities included therein.

IPC Classes  ?

  • C07C 219/20 - Compounds containing amino and esterified hydroxy groups bound to the same carbon skeleton having esterified hydroxy groups and amino groups bound to acyclic carbon atoms of the same carbon skeleton the carbon skeleton being unsaturated
  • A01N 33/12 - Quaternary ammonium compounds
  • G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry

34.

SOLID ELECTROLYTE PREPARATION METHOD AND SOLID ELECTROLYTE

      
Application Number KR2023014019
Publication Number 2024/058629
Status In Force
Filing Date 2023-09-18
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Chung, Ha Bin
  • Lee, Dong Geon
  • Son, Byoung Kuk
  • Park, Chang Hun
  • Kim, In Gyu
  • Jeon, Do Yeon
  • Lee, Seong Ho
  • Min, Sang Hyuk

Abstract

The present invention relates to a sulfide-based solid electrolyte preparation method and a sulfide-based solid electrolyte prepared thereby, the method comprising the steps of: (A) preparing a reaction mixture by pulverizing each of sulfide-based solid electrolyte raw materials, and then mixing same; (B) processing the reaction mixture into a pellet shape by compressing same; and (C) preparing a fired product by firing the pellet-shaped reaction mixture.

IPC Classes  ?

35.

METHOD FOR MANUFACTURING SOLID ELECTROLYTE, AND SOLID ELECTROLYTE

      
Application Number KR2023014032
Publication Number 2024/058633
Status In Force
Filing Date 2023-09-18
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Chung, Ha Bin
  • Son, Byoung Kuk
  • Park, Chang Hun
  • Kim, In Gyu
  • Jeon, Do Yeon
  • Lee, Dong Geon

Abstract

The present invention relates to a method for manufacturing a solid electrolyte, the method including the steps of (S1) mixing sulfide-based solid electrolyte raw materials with a solvent to prepare a precursor mixture and (S2) thermally treating the precursor mixture, wherein the solvent has a relative polarity to water of 0.15 or less, with the content thereof ranging 2 wt% (exclusive) to 5 wt% (inclusive) on the basis of the total weight of the precursor mixture.

IPC Classes  ?

36.

CURABLE COMPOSITION AND OPTICAL MATERIAL COMPRISING SAME

      
Application Number 18262528
Status Pending
Filing Date 2022-03-08
First Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jung, Soonhwa
  • Lim, Jeewoo
  • Chang, Yeongrae
  • Choi, Jisung

Abstract

This invention relates to a curable composition for forming high refractive index optical material and optical material comprising the same, and more specifically, to a curable composition for forming high refractive index optical material comprising an episulfide compound and a sulfur-containing polymer compound, and optical material comprising the same.

IPC Classes  ?

  • C08K 5/45 - Heterocyclic compounds having sulfur in the ring
  • C08K 3/06 - Sulfur
  • C08K 3/30 - Sulfur-, selenium-, or tellurium-containing compounds
  • C08L 81/04 - Polysulfides
  • G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics

37.

POLYIMIDE-BASED POLYMER FILM, SUBSTRATE FOR DISPLAY DEVICE, AND OPTICAL DEVICE USING THE SAME

      
Application Number 18254543
Status Pending
Filing Date 2022-09-14
First Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kang, Mi Eun
  • Park, Chan Hyo
  • Park, Jinyoung
  • Park, Chae Won
  • Lee, Min Wook

Abstract

The present disclosure relates to a polyimide-based resin film comprising a polyimide-based resin containing a polyimide repeating unit represented by Chemical Formula 1 and a polyimide repeating unit represented by Chemical Formula 2, a substrate for display device, and an optical device using the same.

IPC Classes  ?

  • C08G 73/10 - Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
  • C08J 5/18 - Manufacture of films or sheets

38.

METHOD FOR PREPARING ACRYLIC ACID

      
Application Number KR2023006783
Publication Number 2024/058339
Status In Force
Filing Date 2023-05-18
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lyu, Byeong Gil
  • Kim, Mi Kyung
  • Shin, Dae Young
  • Jung, Da Bin

Abstract

The present invention provides a method for preparing acrylic acid, the method comprising the steps of: feeding an aqueous solution of lactic acid to a reactor, followed by dehydration, to obtain a first reaction product containing lactic acid, a lactic acid dimer, water, and acrylic acid; feeding the first reaction product to a first cooling tower and separating the first reaction product into a first cooling tower bottom fraction containing lactic acid and a lactic acid dimer and a first cooling tower top fraction containing water and acrylic acid; feeding the first cooling tower bottom fraction to a lactic acid conversion tank to convert the lactic acid dimer into lactic acid, thereby obtaining a second reaction product; separating lactic acid from the second reaction product to collect lactic acid; and separating acrylic acid from the first cooling tower top fraction to obtain acrylic acid.

IPC Classes  ?

  • C07C 51/46 - Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
  • C07C 51/487 - Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
  • C07C 57/04 - Acrylic acid; Methacrylic acid

39.

METHOD FOR PREPARING ACRYLIC ACID

      
Application Number KR2023006789
Publication Number 2024/058340
Status In Force
Filing Date 2023-05-18
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lyu, Byeong Gil
  • Kim, Mi Kyung
  • Shin, Dae Young
  • Jung, Da Bin

Abstract

The present invention provides a method for preparing acrylic acid, comprising the steps of: obtaining a reaction product including lactic acid, water, light gas components, and acrylic acid, by supplying a lactic acid aqueous solution to a reactor to undergo a dehydration reaction; separating into a lower fraction containing acrylic acid and lactic acid and an upper fraction containing acrylic acid, water, and light gas components, by supplying the reaction product to a first cooling tower; obtaining a lower fraction containing acrylic acid and water, by supplying the upper fraction of the first cooling tower to a second cooling tower; obtaining a liquid extraction containing acrylic acid and an extraction solvent, by supplying the lower fraction of the second cooling tower to an extraction tower; obtaining a lower fraction containing acrylic acid and lactic acid, by supplying the lower fraction of the first cooling tower and the liquid extraction to an azeotropic distillation tower; and obtaining acrylic acid by supplying the lower fraction of the azeotropic distillation tower to an acrylic acid recovery tower.

IPC Classes  ?

  • C07C 51/46 - Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
  • C07C 51/487 - Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification
  • C07C 57/04 - Acrylic acid; Methacrylic acid

40.

METHOD FOR PREPARING CATHODE ACTIVE MATERIAL PRECURSOR

      
Application Number KR2023013247
Publication Number 2024/058481
Status In Force
Filing Date 2023-09-05
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Woo Hyun
  • Noh, Joon Ho
  • Kim, Seong Bae
  • Moon, Chang Jun

Abstract

The objective of the present invention is to provide a method for reproducibly preparing a cathode active material precursor with narrow particle distribution.

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

41.

ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY

      
Application Number KR2023013859
Publication Number 2024/058582
Status In Force
Filing Date 2023-09-15
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Su Jun
  • Park, Jeongsoo
  • Jin, Sun Mi
  • Lee, Hana
  • Yu, Ingyoung

Abstract

The present invention relates to an electrode for a lithium secondary battery, the electrode comprising a porous layer comprising boehmite and barium sulfate as inorganic fine particles, and a lithium secondary battery comprising the electrode for a lithium secondary battery.

IPC Classes  ?

  • H01M 10/058 - Construction or manufacture
  • H01M 50/483 - Inorganic material
  • H01M 50/446 - Composite material consisting of a mixture of organic and inorganic materials
  • H01M 50/491 - Porosity
  • H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
  • H01M 10/052 - Li-accumulators

42.

CURABLE COMPOSITION

      
Application Number KR2023013860
Publication Number 2024/058583
Status In Force
Filing Date 2023-09-15
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Jeong Hyun
  • Son, Ho Yeon
  • Jun, Shin Hee

Abstract

The present invention provides a curable composition, a thermal interface material (TIM), and uses thereof. According to the present invention, the curable composition or thermal interface material can exhibit high thermal conductivity while exhibiting low adhesiveness to a predetermined adherend. In addition, the low adhesiveness may be achieved without using an adhesiveness-adjusting component such as a plasticizer, or while minimizing the proportion thereof. Moreover, the curable composition can exhibit a precisely controlled curing speed and have excellent curing properties. The present invention can also provide a product comprising the curable composition, a cured body thereof, or the thermal interface material.

IPC Classes  ?

  • C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
  • C08G 18/34 - Carboxylic acids; Esters thereof with monohydroxyl compounds
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • C08G 18/24 - Catalysts containing metal compounds of tin

43.

CURABLE COMPOSITION

      
Application Number KR2023013865
Publication Number 2024/058586
Status In Force
Filing Date 2023-09-15
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Son, Ho Yeon
  • Lee, Jeong Hyun
  • Jun, Shin Hee

Abstract

The present invention provides a curable composition, a thermal interface material (TIM), and uses thereof. According to the present invention, the curable composition or thermal interface material can exhibit high thermal conductivity while exhibiting low adhesiveness to a predetermined adherend. In addition, the low adhesiveness may be achieved without using an adhesiveness-adjusting component such as a plasticizer, or while minimizing the proportion thereof. Moreover, the curable composition can exhibit a precisely controlled curing speed and have excellent curing properties. The present invention also provides a product comprising the curable composition, a cured body thereof, or the thermal interface material.

IPC Classes  ?

  • C08G 18/34 - Carboxylic acids; Esters thereof with monohydroxyl compounds
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • C08G 18/24 - Catalysts containing metal compounds of tin

44.

CURABLE COMPOSITION

      
Application Number KR2023095057
Publication Number 2024/058649
Status In Force
Filing Date 2023-09-15
Publication Date 2024-03-21
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Jeong Hyun
  • Son, Ho Yeon
  • Jun, Shin Hee

Abstract

The present application provides a curable composition, a thermal interface material (TIM), and uses thereof. In the present application, the curable composition or thermal interface material can exhibit high thermal conductivity while exhibiting low adhesion to a predetermined adherend. In addition, in the present invention, the low adhesiveness may be achieved without the use of an adhesion-adjusting component such as a plasticizer or with a minimized use ratio thereof. In the present application, the curable composition can also exhibit a precisely controlled cure rate while simultaneously having excellent curing properties. The present application can also provide a product containing the curable composition, a cured body thereof, or the thermal interface material.

IPC Classes  ?

  • C08G 18/38 - Low-molecular-weight compounds having hetero atoms other than oxygen
  • C08G 18/34 - Carboxylic acids; Esters thereof with monohydroxyl compounds
  • C08G 18/42 - Polycondensates having carboxylic or carbonic ester groups in the main chain
  • C08G 18/24 - Catalysts containing metal compounds of tin
  • C08G 18/10 - Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

45.

CROSSLINKED HYALURONIC ACID HYDROGEL CROSSLINKED USING CROSSLINKER AND POLYOL, AND FILLER COMPRISING SAME

      
Application Number 18260065
Status Pending
Filing Date 2022-01-07
First Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jung, Hyun Tae
  • Lee, Chung
  • So, Jineon

Abstract

The purpose of the present invention is to provide: a crosslinked hyaluronic acid hydrogel in which a crosslinking agent and a polyol are used to reduce toxicity during crosslinking, and thereby enhance safety while increasing persistence in the body; and a filler composition including the crosslinked hyaluronic acid hydrogel.

IPC Classes  ?

  • C08B 37/08 - Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
  • A61L 27/20 - Polysaccharides
  • A61L 27/52 - Hydrogels or hydrocolloids
  • A61L 27/54 - Biologically active materials, e.g. therapeutic substances
  • C08J 3/075 - Macromolecular gels
  • C08L 5/08 - Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof

46.

METHOD FOR PREPARATION OF DEUTERATED ANTHRACENE COMPOUND, REACTION COMPOSITION, DEUTERATED ANTHRACENE COMPOUND, AND COMPOSITION

      
Application Number 18265754
Status Pending
Filing Date 2022-01-28
First Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jung, Changyoung
  • Kim, Sunmin
  • Lee, Woochul
  • Jeong, Kyung Seok
  • Kim, Woo Han
  • Kim, Changmin

Abstract

Provided is a method for preparing a deuterated anthracene compound, the method including synthesizing a deuterated anthracene compound by reacting a halogenated benzene having at least one deuterium with an enolate. Also provided is a reaction composition; a deuterated anthracene compound; and a composition containing the deuterated anthracene compound.

IPC Classes  ?

  • C07D 307/91 - Dibenzofurans; Hydrogenated dibenzofurans
  • C07B 59/00 - Introduction of isotopes of elements into organic compounds
  • C07C 15/28 - Anthracenes
  • C07D 209/86 - Carbazoles; Hydrogenated carbazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
  • 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 493/04 - Ortho-condensed systems
  • H10K 85/60 - Organic compounds having low molecular weight

47.

COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME

      
Application Number 18267078
Status Pending
Filing Date 2022-02-22
First Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jung, Min Woo
  • Lee, Dong Hoon
  • Suh, Sang Duk
  • Lee, Jungha
  • Han, Su Jin
  • Park, Seulchan
  • Hwang, Sunghyun

Abstract

A compound represented by Chemical Formula 1 and an organic light emitting device including the same are provided. The compound is used as a material for an organic material layer of the organic light emitting device, and provides improved efficiency, low driving voltage, and increased lifespan of the organic light emitting device. A compound represented by Chemical Formula 1 and an organic light emitting device including the same are provided. The compound is used as a material for an organic material layer of the organic light emitting device, and provides improved efficiency, low driving voltage, and increased lifespan of the organic light emitting device.

IPC Classes  ?

  • C07D 403/04 - 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 directly linked by a ring-member-to-ring- member bond
  • 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
  • C07D 409/04 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings directly linked by a ring-member-to-ring- member bond
  • C07D 409/14 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing three or more hetero rings
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
  • H10K 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers

48.

Graft Copolymer Composition, Curable Resin Composition Comprising Same, and Methods of Preparing Them

      
Application Number 18273187
Status Pending
Filing Date 2022-08-12
First Publication Date 2024-03-14
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Jeong, Min Ah
  • Yoo, Ki Hyun
  • Han, Sang Hoon
  • Kim, Yong Kyun

Abstract

A graft copolymer, and a graft copolymer composition having excellent particulate dispersibility in a curable resin such as an epoxy resin and is applicable as a particulate impact reinforcing agent, a curable resin composition including same, and methods of preparing them.

IPC Classes  ?

  • C08L 63/00 - Compositions of epoxy resins; Compositions of derivatives of epoxy resins
  • C08C 3/00 - Treatment of coagulated rubber
  • C08F 279/02 - Macromolecular compounds obtained by polymerising monomers on to polymers of monomers having two or more carbon-to-carbon double bonds as defined in group on to polymers of conjugated dienes
  • C08J 3/00 - Processes of treating or compounding macromolecular substances

49.

Positive Electrode Active Material for Lithium Secondary Battery, Preparation Method Thereof, and Positive Electrode for Lithium Secondary Battery and Lithium Secondary Battery Which Include the Positive Electrode Active Material

      
Application Number 18275112
Status Pending
Filing Date 2022-03-23
First Publication Date 2024-03-14
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Jun, Tae Hwan
  • Jung, Hae Jong
  • Kim, Gyun Joong
  • Oh, Myoung Hwan

Abstract

A high-nickel positive electrode active material and a method of making the same is disclosed herein. In some embodiments, the material includes a lithium transition metal oxide, wherein the lithium transition metal oxide is secondary particles, wherein each secondary particle is an aggregate of primary particles, and wherein the oxide has an amount of nickel of 80 atm % or more, a first coating layer formed on a surface of the secondary particle and on surfaces of a portion or all of the primary particles, the first coating layer contains nickel and manganese, and has a layered structure, and a second coating layer formed on an outer surface of the first coating layer, the second coating layer contains boron. The active material has improved stability and initial capacity and crack generation at an interface between primary particles is also suppressed.

IPC Classes  ?

  • H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
  • H01M 4/36 - Selection of substances as active materials, active masses, active liquids
  • H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
  • H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
  • H01M 10/052 - Li-accumulators

50.

METHOD FOR PREPARING ZINC FERRITE-BASED CATALYST AND ZINC FERRITE-BASED CATALYST PREPARED THEREBY

      
Application Number 18511733
Status Pending
Filing Date 2023-11-16
First Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Han, Sang Jin
  • Ko, Dong Hyun
  • Cha, Kyong Yong
  • Hwang, Ye Seul
  • Hwang, Sunhwan

Abstract

A method for preparing a zinc ferrite-based catalyst according to an embodiment of the present application comprises the steps of: contacting a metal precursor solution including a zinc precursor, a ferrite precursor, an acid solution and water with a basic aqueous solution to obtain a precipitate; and filtering and thereafter drying and calcining the precipitate, wherein the acid solution includes one or more of nitric acid (HNO3) and hydrocarbon acid.

IPC Classes  ?

  • B01J 23/80 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with zinc, cadmium or mercury
  • B01J 23/00 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group
  • B01J 37/00 - Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
  • B01J 37/02 - Impregnation, coating or precipitation
  • B01J 37/03 - Precipitation; Co-precipitation
  • B01J 37/06 - Washing
  • B01J 37/08 - Heat treatment
  • C07C 5/48 - Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with a hydrogen acceptor with oxygen as an acceptor

51.

Preparing Method of Super Absorbent Polymer Sheet and Super Absorbent Polymer Sheet Prepared Therefrom

      
Application Number 18514061
Status Pending
Filing Date 2023-11-20
First Publication Date 2024-03-14
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Yoon, Kiyoul
  • Choi, Hyeon
  • Joo, Hyosook
  • Kim, Gicheul
  • Kim, Ju Eun

Abstract

The present disclosure relates to a preparing method of a super absorbent polymer sheet and a super absorbent polymer sheet prepared therefrom. The preparing method of a super absorbent polymer sheet of the present disclosure may prepare a porous flexible super absorbent polymer sheet exhibiting high flexibility and fast absorption rate.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
  • B01J 20/30 - Processes for preparing, regenerating or reactivating

52.

ANALYSIS METHOD FOR PORE DISTRIBUTION OF POROUS STRUCTURE

      
Application Number KR2023013371
Publication Number 2024/054044
Status In Force
Filing Date 2023-09-06
Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kang, Ho-Sung
  • Lee, Sang-Won
  • Kim, Kyeong-Rak
  • Park, Je-Seob

Abstract

An aspect of the present invention provides an analysis method for pore distribution of a porous structure, the analysis method comprising the steps of: observing the cross-section of the porous structure with an electron microscope (SEM) to obtain a raw image of the cross-section of the porous structure; and quantifying the pore distribution in the obtained raw image by using a Voronoi diagram. According to the pore distribution analysis method, it is possible to quantitively analyze the pore distribution of the porous structure.

IPC Classes  ?

  • G01N 15/08 - Investigating permeability, pore volume, or surface area of porous materials
  • G01N 23/2251 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by measuring secondary emission from the material using electron or ion microprobes using incident electron beams, e.g. scanning electron microscopy [SEM]

53.

Compound And Organic Light Emitting Device Comprising The Same

      
Application Number 18265337
Status Pending
Filing Date 2022-03-08
First Publication Date 2024-03-14
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lim, Byeong Yun
  • Lee, Jaechol
  • Kim, Yongwook
  • Yu, Soyoung
  • Kim, Shin Sung
  • Kim, Young Kwang
  • Choi, Hyunju

Abstract

The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: The present disclosure provides a novel compound represented by the following Chemical Formula 1, and an organic light emitting device including the same: wherein A1 to A4, X, Y and n are described herein.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • C07F 5/02 - Boron compounds
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials

54.

Precursor For Positive Electrode Active Material And Method Of Preparing The Same

      
Application Number 18275751
Status Pending
Filing Date 2022-02-18
First Publication Date 2024-03-14
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Min Joon
  • Ye, Seong Ji
  • Cho, Seung Beom
  • Lee, Jang Soo
  • Park, Yoon Bin

Abstract

A precursor for a positive electrode active material and a method of making the same are disclosed herein. In some embodiments a method includes forming precursor seeds for a positive electrode active material by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to a reaction solution, and growing precursor particles for a positive electrode active material by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to the reaction solution containing the precursor seeds, wherein the co-precipitation reaction to grow the precursor particles proceeds while continuously increasing feed rates of the transition metal aqueous solution and the ammonium cationic complexing agent.

IPC Classes  ?

55.

Positive Electrode Active Material, Positive Electrode Including the Same, and Lithium Secondary Battery

      
Application Number 18280352
Status Pending
Filing Date 2022-03-22
First Publication Date 2024-03-14
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Jung, Won Sig
  • Choi, Hwan Young
  • Kim, Jong Pil
  • Yoon, Yeo June
  • Lee, Kang Hyeon
  • Rhee, Tae Young
  • Jung, Yong Jo

Abstract

Provided is a positive electrode active material which includes an inner region that is a region from the center of the positive electrode active material particle to R/2; and an outer region that is a region from R/2 to the surface of the positive electrode active material particle, wherein R is a distance from the center of the positive electrode active material particle to the surface thereof. The positive electrode active material further includes 30% to 80% of crystallites A with respect to a total number of crystallites in the outer region of the positive electrode active material, the crystallites A having high crystallite long-axis orientation degree and crystallite c-axis orientation degree. Thus, the positive electrode active material can achieve excellent capacity characteristics and service life characteristics.

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 4/505 - 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

56.

BRANCHED POLY(3-HYDROXYPROPIONIC ACID)POLYMER, AND METHOD FOR PREPARATION THEREOF

      
Application Number 18385794
Status Pending
Filing Date 2023-10-31
First Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Yeonju
  • Choi, Jung Yun
  • Kim, Chul Woong
  • Cho, Suhyun
  • Kim, Kyeongmin

Abstract

Provided is a novel branched poly(3-hydroxypropionic acid)polymer.

IPC Classes  ?

  • C08G 63/06 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxy carboxylic acids

57.

RESIN AND METHOD FOR MANUFACTURING SAME

      
Application Number KR2023001853
Publication Number 2024/053804
Status In Force
Filing Date 2023-02-08
Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Il Hwan
  • Kim, Kyeongmun
  • Jung, Min Suk
  • Shin, Hyeonah
  • Yim, Hye Jin
  • Bae, Jaesoon

Abstract

The present application relates to a resin comprising a unit represented by chemical formula 1, a method for manufacturing same, a resin composition comprising same, and a molded product comprising the resin composition.

IPC Classes  ?

  • C08G 64/30 - General preparatory processes using carbonates
  • C08G 63/64 - Polyesters containing both carboxylic ester groups and carbonate groups
  • C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
  • G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
  • C08L 63/00 - Compositions of epoxy resins; Compositions of derivatives of epoxy resins

58.

METHOD FOR PREPARING NEOPENTYL GLYCOL

      
Application Number KR2023013046
Publication Number 2024/053935
Status In Force
Filing Date 2023-09-01
Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Sung Kyun
  • Lee, Sung Kyu
  • Baek, Gi Su
  • Ha, Na Ro

Abstract

The present invention relates to a method for producing neopentyl glycol, comprising the steps of: obtaining a first reaction product containing hydroxypivaldehyde through an aldol condensation reaction; contacting the first reaction product with an extractant and distilling same to obtain an extract and a raffinate; supplying the raffinate to a saponification reactor and reducing same with a catalyst; supplying both the extract and the catalyst to an aldol purification column and distilling same to make separation into an upper discharge stream and a lower discharge stream; supplying the lower discharge stream of the aldol purification column to an aqueous reaction vessel to obtain a second reaction product containing neopentyl glycol; and obtaining neopentyl glycol from the second reaction product.

IPC Classes  ?

  • C07C 29/14 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group of C=O containing groups, e.g. —COOH of a —CHO group
  • C07C 29/74 - Separation; Purification; Stabilisation; Use of additives
  • C07C 31/20 - Dihydroxylic alcohols

59.

METHOD FOR PREPARING NEOPENTYL GLYCOL

      
Application Number KR2023013048
Publication Number 2024/053936
Status In Force
Filing Date 2023-09-01
Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Sung Kyun
  • Lee, Sung Kyu
  • Ha, Na Ro
  • Cho, Seung Sik

Abstract

The present invention provides a method for preparing neopentyl glycol, comprising the steps of: obtaining a first reaction product containing hydroxypivaldehyde by performing an aldol condensation reaction; contacting the first reaction product with an extracting agent and distilling same so as to obtain an extract solution and a raffinate solution; supplying the raffinate solution to a saponification reactor and reducing same with a catalyst, and supplying the catalyst to an integrated recovery column; supplying the extract solution to an aldol purification column and distilling same so as to obtain an upper discharge stream and a lower discharge stream; supplying the upper discharge stream of the aldol purification column to the integrated recovery column and supplying the lower discharge stream to a hydrogenation reactor so as to obtain a second reaction product containing neopentyl glycol; and obtaining the neopentyl glycol from the second reaction product.

IPC Classes  ?

  • C07C 29/14 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group of C=O containing groups, e.g. —COOH of a —CHO group
  • C07C 29/74 - Separation; Purification; Stabilisation; Use of additives
  • C07C 31/20 - Dihydroxylic alcohols

60.

METHOD FOR PREPARING NEOPENTYL GLYCOL

      
Application Number KR2023013050
Publication Number 2024/053937
Status In Force
Filing Date 2023-09-01
Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Sung Kyun
  • Lee, Sung Kyu
  • Ha, Na Ro
  • Cho, Seung Sik

Abstract

The present invention relates to a method for preparing neopentyl glycol, comprising the steps of: obtaining a first reaction product including neopentyl glycol by hydrogenating in a first hydrogenation reactor; feeding the first reaction product to a flash drum so as to obtain hydrogen and a first stream of degassed solution from which the hydrogen has been degassed; feeding the hydrogen to a second hydrogenation reactor; feeding the first stream of degassed solution to a first heat exchanger so as to reduce the temperature thereof; feeding a portion of the first stream of degassed solution, of which the temperature has been reduced, to the second hydrogenation reactor as a second branched-off stream; conducting hydrogenation reaction in the second hydrogenation reactor to obtain a second reaction product including neopentyl glycol; and subjecting the second reaction product to a neopentyl glycol refining process to obtain neopentyl glycol.

IPC Classes  ?

  • C07C 29/14 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group of C=O containing groups, e.g. —COOH of a —CHO group
  • C07C 29/74 - Separation; Purification; Stabilisation; Use of additives
  • C07C 31/20 - Dihydroxylic alcohols

61.

METHOD FOR TREATING NEOPENTYL GLYCOL WASTEWATER

      
Application Number KR2023013051
Publication Number 2024/053938
Status In Force
Filing Date 2023-09-01
Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Sung Kyun
  • Lee, Sung Kyu
  • Lee, Min Wook

Abstract

The present invention provides a method for treating neopentyl glycol wastewater, comprising the steps of: recovering wastewater, which contains a catalyst, from at least one process from among an aldol purification process, an neopentyl glycol purification process and an extractant recovery process, so as to supply volatile organic compounds to a separation column; obtaining, from the separation column for volatile organic compounds, a top effluent stream containing a catalyst and a bottom effluent stream containing wastewater from which the catalyst is removed; and supplying the bottom effluent stream to a wastewater treatment system so as to treat the wastewater.

IPC Classes  ?

  • C02F 1/58 - Treatment of water, waste water, or sewage by removing specified dissolved compounds
  • C02F 1/04 - Treatment of water, waste water, or sewage by heating by distillation or evaporation
  • B01D 3/32 - Other features of fractionating columns
  • C07C 29/14 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring by reduction of an oxygen-containing functional group of C=O containing groups, e.g. —COOH of a —CHO group
  • C07C 29/74 - Separation; Purification; Stabilisation; Use of additives
  • C07C 31/20 - Dihydroxylic alcohols
  • C02F 101/16 - Nitrogen compounds, e.g. ammonia

62.

NOVEL COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2023013239
Publication Number 2024/053991
Status In Force
Filing Date 2023-09-05
Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Heo, Dong Uk
  • Han, Su Jin
  • Hong, Sung Kil
  • Lee, Jae Tak
  • Yoon, Jung Min
  • Yun, Heekyung

Abstract

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

IPC Classes  ?

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

63.

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

      
Application Number KR2023013250
Publication Number 2024/053995
Status In Force
Filing Date 2023-09-05
Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Gu, Ye Hyeon
  • Jeong, Jin Hoo
  • Shim, Jong Hyun
  • Hwang, Joo Kyoung
  • Lee, Ji Young
  • Ryu, Hyeon Mo

Abstract

5050 of 5 μm or more.

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

64.

NOVEL COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2023013278
Publication Number 2024/054010
Status In Force
Filing Date 2023-09-05
Publication Date 2024-03-14
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Heo, Dong Uk
  • Lee, Jae Tak
  • Yoon, Jung Min
  • Han, Su Jin
  • Hong, Sung Kil
  • Yun, Heekyung

Abstract

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

IPC Classes  ?

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

65.

Preparation Method of Super Absorbent Polymer

      
Application Number 18272509
Status Pending
Filing Date 2022-12-09
First Publication Date 2024-03-07
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Jin Woo
  • Kim, Jun Kyu
  • Kim, Changhun

Abstract

Provided is a method of preparing a superabsorbent polymer. More particularly, provided is a method of preparing a superabsorbent polymer, in which variations in centrifugal retention capacity of superabsorbent polymer particles to be prepared are reduced by controlling heat treatment temperature conditions in a surface crosslinking step, thereby improving absorption properties of the superabsorbent polymer finally prepared.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • C08F 220/06 - Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
  • C08J 3/075 - Macromolecular gels
  • C08J 3/12 - Powdering or granulating
  • C08J 3/24 - Crosslinking, e.g. vulcanising, of macromolecules

66.

POLY(ARYLENE ETHER) RESIN COMPOSITION, PREPARATION METHOD THEREFOR, AND MOLDED ARTICLE MANUFACTURED THEREFROM

      
Application Number KR2023009804
Publication Number 2024/048976
Status In Force
Filing Date 2023-07-11
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Hyuntae
  • Ham, Hyeseung
  • Seo, In Seok
  • Park, Jae Chan

Abstract

The present disclosure relates to a poly(arylene ether) resin composition, a preparation method therefor, and a molded article comprising same, and more specifically to a poly(arylene ether) resin composition, a preparation method therefor, and a molded article comprising same, the poly(arylene ether) resin composition comprising: 100 parts by weight of a base resin comprising (a-1) 75-95 wt% of a poly(arylene ether) resin and (a-2) 5-25 wt% of a polystyrene resin; (b) 12-17 parts by weight of two or more types of organic phosphorus-based flame retardants containing different amounts of phosphorus; (c) 10-40 parts by weight of glass fiber; (d) 0.5-5 parts by weight of ground mica; and (e) 1-4 parts by weight of a sulfate of an alkaline earth metal having an average particle size of 0.05-3 μm. According to the present invention, the effect is achieved of providing a poly(arylene ether) resin composition, a preparation method therefor, and a molded article comprising same, the poly(arylene ether) resin composition having mechanical properties such as impact strength, tensile strength, flexural strength, etc., heat resistance, flame resistance, and flame retardancy properties which are all excellent.

IPC Classes  ?

67.

NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME

      
Application Number KR2023012226
Publication Number 2024/049067
Status In Force
Filing Date 2023-08-18
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Jungha
  • Suh, Sang Duk
  • Kim, Young Seok
  • Kim, Donghee
  • Oh, Joongsuk
  • Kim, Soyeon
  • Jung, Min Woo

Abstract

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

IPC Classes  ?

  • 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
  • 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

68.

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

      
Application Number KR2023012556
Publication Number 2024/049103
Status In Force
Filing Date 2023-08-24
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Yoo, Sung Jin
  • Jang, Kyung Soo
  • Lee, Sung Kyu

Abstract

The present invention provides a method for the preparation of a (meth)acrylic acid, the method comprising: a step for obtaining a (meth)acrylic acid aqueous solution by bringing a mixed gas containing (meth)acrylic acid into contact with water in an absorption tower; a step for supplying the obtained (meth)acrylic acid solution to a crystallization unit, crystallizing to obtain purified (meth)acrylic acid, and supplying the mother liquor separated from the purified (meth)acrylic acid to a water separation tower; a step for separating, in the water separation tower, an upper discharge stream containing water and a lower discharge stream containing (meth)acrylic acid and high-boiling by-products; and a step for supplying the lower discharge stream from the water separation tower to a high boiling point by-product separation tower, and supplying the upper discharge stream containing (meth)acrylic acid to the crystallization unit.

IPC Classes  ?

  • C07C 51/43 - Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
  • C07C 57/04 - Acrylic acid; Methacrylic acid

69.

METHOD FOR PREPARING HIGH-PURITY (METH)ACRYLIC ACID

      
Application Number KR2023012560
Publication Number 2024/049105
Status In Force
Filing Date 2023-08-24
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Yoo, Sung Jin
  • Jang, Kyung Soo
  • Lee, Sung Kyu

Abstract

The present invention provides a method for preparing (meth)acrylic acid, comprising the steps of: making a mixture gas, which contains (meth)acrylic acid, come in contact with water in an absorption column, thereby obtaining a (meth)acrylic acid aqueous solution; supplying the (meth)acrylic acid aqueous solution to a crystallizer, and crystallizing same, thereby obtaining purified (meth)acrylic acid and a mother liquor separated from the purified (meth)acrylic acid; supplying some of the mother liquor to an extraction column, and supplying the rest to a water separation column; making an extraction solvent come in contact with the mother liquor in the extraction column, and then supplying a discharge stream at the top of the extraction column to the water separation column; separating, in the water separation column, a discharge stream, containing water, at the top of the water separation column from a discharge stream, containing (meth)acrylic acid and high-boiling-point by-products, at the bottom of the water separation column; and supplying, to a high-boiling-point by-product separation column, the discharge stream at the bottom of the water separation column, and supplying, to the crystallizer, a discharge stream, containing (meth)acrylic acid, at the top of the high-boiling-point by-product separation column.

IPC Classes  ?

  • C07C 51/43 - Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
  • C07C 57/04 - Acrylic acid; Methacrylic acid
  • C07C 51/25 - Preparation of carboxylic acids or their salts, halides, or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring

70.

METHOD FOR PREPARATION OF HIGH PURITY (METH)ACRYLIC ACID

      
Application Number KR2023012563
Publication Number 2024/049106
Status In Force
Filing Date 2023-08-24
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Yoo, Sung Jin
  • Jang, Kyung Soo
  • Lee, Sung Kyu

Abstract

The present invention provides a method for preparing (meth)acrylic acid, the method comprising the steps of: contacting a mixed gas including (meth)acrylic acid with water in an absorption tower to obtain first and second aqueous (meth)acrylic acid solutions; discharging the first aqueous (meth)acrylic acid solution from a lower portion of the absorption tower and supplying same to a crystallizer, and discharging the second aqueous (meth)acrylic acid solution from a side portion of the absorption tower; supplying the second aqueous (meth)acrylic acid solution to a water separation tower to obtain a distillate including (meth)acrylic acid and high-boiling-point by-products; supplying the distillate to a high-boiling-point by-product separation tower, and supplying an upper discharge stream from the high-boiling-point by-product separation tower to the crystallizer, the upper discharge stream including the (meth)acrylic acid; and obtaining purified (meth)acrylic acid in the crystallizer, and circulating part of mother liquor recovered from the crystallizer to the absorption tower and the remainder to the water separation tower.

IPC Classes  ?

  • C07C 51/43 - Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
  • C07C 51/44 - Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
  • C07C 57/04 - Acrylic acid; Methacrylic acid

71.

METHOD FOR PREPARATION OF HIGH PURITY (METH)ACRYLIC ACID

      
Application Number KR2023012565
Publication Number 2024/049107
Status In Force
Filing Date 2023-08-24
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Yoo, Sung Jin
  • Jang, Kyung Soo
  • Lee, Sung Kyu

Abstract

The present invention provides a method for preparing (meth)acrylic acid, comprising the steps of: obtaining a (meth)acrylic acid aqueous solution by contacting a mixed gas containing (meth)acrylic acid with water in an absorption tower; supplying the (meth)acrylic acid aqueous solution to an extraction tower, extracting the (meth)acrylic acid aqueous solution by contacting same with an extraction solvent to obtain an extract solution containing the (meth)acrylic acid and the extraction solvent; supplying the extract solution to a solvent purification tower and separating the solvent purification tower into a solvent purification tower lower discharge stream containing (meth)acrylic acid and a solvent purification tower upper discharge stream containing an extraction solvent; supplying the solvent purification tower lower discharge stream to a crystallizer and obtaining (meth)acrylic acid crystallized in the crystallizer; and supplying the mother liquor after the crystallization to a high boiling point by-product separation tower, and circulating a high boiling point by-product separation tower upper discharge stream from which the high boiling point by-product has been removed to the solvent purification tower.

IPC Classes  ?

  • C07C 51/43 - Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
  • C07C 57/04 - Acrylic acid; Methacrylic acid

72.

FLOW PATH PLATE FOR ELECTROLYTIC CELL, AND ELECTROLYTIC CELL COMPRISING SAME

      
Application Number KR2023013049
Publication Number 2024/049263
Status In Force
Filing Date 2023-09-01
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Park, Joon Ho
  • Im, Ye Hoon
  • Jang, Jung Kee
  • Noh, Tai Min

Abstract

The present invention relates to a flow path plate for an electrolytic cell, and an electrolytic cell comprising same. The flow path plate for an electrolytic cell, according to the present invention, is a flow path plate for an electrolytic cell, which faces an electrode that causes an electrochemical reaction, and comprises: a supply-side flow path part having a plurality of branched flow paths for supplying a raw material fluid; and a channel part comprising a plurality of channels of which one side is connected to the supply-side flow path part and through which the supplied raw material fluid moves, wherein the supply-side flow path part has a plurality of flow path blocks, the branched flow paths are branched into a plurality through the flow path blocks, and the width of the plurality of branched flow paths is uniform.

IPC Classes  ?

  • C25B 9/75 - Assemblies comprising two or more cells of the filter-press type having bipolar electrodes
  • C25B 9/77 - Assemblies comprising two or more cells of the filter-press type having diaphragms
  • C25B 15/08 - Supplying or removing reactants or electrolytes; Regeneration of electrolytes
  • C25B 13/02 - Diaphragms; Spacing elements characterised by shape or form
  • C25B 1/23 - Carbon monoxide or syngas
  • C25B 3/26 - Reduction of carbon dioxide

73.

COMPOSITION

      
Application Number KR2023012910
Publication Number 2024/049205
Status In Force
Filing Date 2023-08-30
Publication Date 2024-03-07
Owner
  • LG CHEM, LTD. (Republic of Korea)
  • LG ENERGY SOLUTION, LTD. (Republic of Korea)
Inventor
  • Lee, Seung Min
  • Choi, Bum
  • Jung, Jin Mi
  • Lee, Hong Chan
  • Kim, Gae Sung
  • Ahn, Soo Jun
  • Park, Tae Young

Abstract

The present application relates to a composition and a use thereof. The composition of the present application can be applied to a product that generates heat during a driving or maintenance process, and thus can be used as a material that can process the heat. The composition of the present application can be applied to a product in which a plurality of heat-generating elements are integrated, and thus can efficiently process the heat generated from the elements while uniformly maintaining the temperature of the product. In addition, the composition of the present application can applied to the above-mentioned product, and thus, even if abnormal heat generation, an explosion, or ignition occurs in any one among the plurality of elements, can prevent or minimize the effect of such heat generation, explosion, or ignition on the other elements adjacent thereto.

IPC Classes  ?

  • C08K 13/02 - Organic and inorganic ingredients
  • C08K 3/013 - Fillers, pigments or reinforcing additives
  • C09K 5/02 - Materials undergoing a change of physical state when used
  • H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
  • H01M 50/218 - Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material

74.

ORGANIC LIGHT EMITTING DEVICE

      
Application Number 18038788
Status Pending
Filing Date 2022-04-27
First Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Minjun
  • Lee, Dong Hoon
  • Suh, Sang Duk
  • Kim, Young Seok
  • Kim, Donghee
  • Oh, Joongsuk
  • Lee, Da Jung

Abstract

Provided is an organic light-emitting device having improved driving voltage, efficiency and lifespan, the device comprising an anode, a cathode, and a light emitting layer including a light emitting layer that includes a compound of Chemical Formula 1 and a compound of Chemical Formula 2 between the anode and the cathode: Provided is an organic light-emitting device having improved driving voltage, efficiency and lifespan, the device comprising an anode, a cathode, and a light emitting layer including a light emitting layer that includes a compound of Chemical Formula 1 and a compound of Chemical Formula 2 between the anode and the cathode: where Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; R1 is each independently hydrogen or deuterium; R2 to R6 and R9 to R11 are each independently hydrogen or deuterium; one of R7 and R8 is Provided is an organic light-emitting device having improved driving voltage, efficiency and lifespan, the device comprising an anode, a cathode, and a light emitting layer including a light emitting layer that includes a compound of Chemical Formula 1 and a compound of Chemical Formula 2 between the anode and the cathode: where Ar1 and Ar2 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; R1 is each independently hydrogen or deuterium; R2 to R6 and R9 to R11 are each independently hydrogen or deuterium; one of R7 and R8 is  and the other is hydrogen or deuterium; Ar3 and Ar4 are each independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing at least one of N, O and S; and the other substituents are as defined in the specification.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • 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 307/91 - Dibenzofurans; Hydrogenated dibenzofurans
  • 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 405/10 - 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 405/12 - 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 chain containing hetero atoms as chain links
  • 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 409/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
  • 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
  • C07F 7/08 - Compounds having one or more C—Si linkages
  • C09K 11/06 - Luminescent, e.g. electroluminescent, chemiluminescent, materials containing organic luminescent materials
  • H10K 85/40 - Organosilicon compounds, e.g. TIPS pentacene

75.

BRANCHED POLY(LACTIC ACID-3-HYDROXYPROPIONIC ACID)COPOLYMER AND METHOD FOR PREPARATION THEREOF

      
Application Number 18385786
Status Pending
Filing Date 2023-10-31
First Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Yeonju
  • Choi, Jung Yun
  • Kang, Donggyun
  • Kim, Chul Woong
  • Cho, Suhyun
  • Jeon, Harim

Abstract

Provided is a novel a copolymer with structures including a branched poly(3-hydroxypropionic acid) and a poly(lactic acid).

IPC Classes  ?

  • C08G 63/06 - Polyesters derived from hydroxy carboxylic acids or from polycarboxylic acids and polyhydroxy compounds derived from hydroxy carboxylic acids
  • C08G 63/82 - Preparation processes characterised by the catalyst used

76.

COMPOSITE SOLID ELECTROLYTE, METHOD FOR PRODUCING SAME, AND ALL-SOLID-STATE BATTERY INCLUDING SAME

      
Application Number KR2023012522
Publication Number 2024/049097
Status In Force
Filing Date 2023-08-24
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jeon, Do Yeon
  • Son, Byoung Kuk
  • Lee, Seong Ho
  • Park, Chang Hun
  • Min, Sang Hyuk
  • Kim, In Gyu
  • Chung, Ha Bin
  • Lee, Dong Geon

Abstract

The present invention addresses the problem of improving the atmospheric stability of conventional sulfide-based solid electrolytes, and pertains to a composite solid electrolyte, a method for producing same, and an all-solid-state battery including same. The composite solid electrolyte comprises: sulfide-based solid electrolyte particles; and a polymer coating layer formed on the sulfide-based solid electrolyte particles, wherein the polymer in the polymer coating layer contains a repeating unit represented by formula (I) described herein.

IPC Classes  ?

  • H01M 10/056 - Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
  • H01M 10/0562 - Solid materials
  • H01M 10/052 - Li-accumulators

77.

METHOD FOR PREPARATION OF HIGH PURITY (METH)ACRYLIC ACID

      
Application Number KR2023012550
Publication Number 2024/049101
Status In Force
Filing Date 2023-08-24
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Yoo, Sung Jin
  • Jang, Kyung Soo
  • Lee, Sung Kyu

Abstract

The present invention provides a method for preparing (meth)acrylic acid, the method comprising the steps of: contacting a mixed gas comprising (meth)acrylic acid with an absorption solvent in an absorption tower; supplying a first (meth)acrylic acid solution discharged from a lower portion of the absorption tower to a high-boiling-point by-product separation tower, and supplying an upper discharge stream from the high-boiling-point by-product separation tower to a crystallizer; supplying a second (meth)acrylic acid solution discharged from a side portion of the absorption tower to the crystallizer; and obtaining (meth)acrylic acid crystallized in the crystallizer, and circulating mother liquor recovered from the crystallizer to the absorption tower.

IPC Classes  ?

  • C07C 51/43 - Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
  • C07C 57/04 - Acrylic acid; Methacrylic acid

78.

NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE USING SAME

      
Application Number KR2023012777
Publication Number 2024/049159
Status In Force
Filing Date 2023-08-29
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Minjun
  • Hong, Sung Kil
  • Suh, Sang Duk
  • Lee, Sung Jae
  • Song, Jongsoo

Abstract

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

IPC Classes  ?

  • 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
  • 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 50/11 - OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers

79.

CATHODE ACTIVE MATERIAL PRECURSOR, PREPARATION METHOD THEREFOR, METHOD FOR PREPARING CATHODE ACTIVE MATERIAL BY USING SAME, AND CATHODE ACTIVE MATERIAL

      
Application Number KR2023012883
Publication Number 2024/049200
Status In Force
Filing Date 2023-08-30
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Gu, Ye Hyeon
  • Hwang, Joo Kyoung
  • Jeong, Jin Hoo
  • Shim, Jong Hyun
  • Lee, Ji Young
  • Ryu, Hyeon Mo

Abstract

The present invention relates to a cathode active material precursor capable of implementing a cathode active material in the form of a uniform discrete particle and, specifically, to a cathode active material precursor, a preparation method therefor, a method for preparing a cathode active material by using same, and a cathode active material, the precursor comprising a lithium composite transition metal oxide in a discrete particle form, which has a molar ratio (Li/Me) of lithium to total transition metals of 0.01-0.7, and having a pellet density of 3.0 g/cm3to 4.0 g/cm3.

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

80.

POLYMER COMPOSITION

      
Application Number KR2023013094
Publication Number 2024/049271
Status In Force
Filing Date 2023-09-01
Publication Date 2024-03-07
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ham, Kyung Rok
  • Choi, Hyung Sam
  • Yun, Hae Sung
  • Cho, Beom Shin
  • Chung, Da Sol

Abstract

The present invention relates to a polymer composition and a use thereof. The present invention can provide a polymer composition having excellent biodegradability and absorption capacity, and a use thereof. The present invention can provide the polymer composition and a use thereof by controlling the ratio of amylose and amylopectin in a polysaccharide component included in the polymer composition and the molecular weight of the polysaccharide component.

IPC Classes  ?

  • C08L 3/12 - Amylose; Amylopectin; Degradation products thereof

81.

CONDUCTIVE RESIN COMPOSITION, METHOD FOR PREPARING SAME, AND MOLDED PRODUCT COMPRISING SAME

      
Application Number KR2023005518
Publication Number 2024/043430
Status In Force
Filing Date 2023-04-24
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Gi Dae
  • Kwon, Ohmin
  • Ham, Myong Jo
  • Kim, Kwang Joon

Abstract

The present invention relates to a conductive resin composition, a method for preparing same, and a molded product comprising same. According to the present invention, there is the effect of providing: a conductive resin composition which has excellent moisture stability and heat resistance as well as excellent appearance, rigidity and conductivity, thus minimizing influences by moisture, heat and the like due to exposure to external environments, and therefore is useful especially for exterior parts that replace metals, of automobiles; a method for preparing same; and a molded product comprising same.

IPC Classes  ?

  • C08L 67/02 - Polyesters derived from dicarboxylic acids and dihydroxy compounds
  • C08L 71/12 - Polyphenylene oxides
  • C08L 25/10 - Copolymers of styrene with conjugated dienes
  • C08L 53/00 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Compositions of derivatives of such polymers
  • C08L 63/00 - Compositions of epoxy resins; Compositions of derivatives of epoxy resins
  • C08K 7/24 - Expanded, porous or hollow particles inorganic
  • C08K 3/04 - Carbon
  • C08J 3/22 - Compounding polymers with additives, e.g. colouring using masterbatch techniques

82.

COMPOSITION FOR ENCAPSULANT FILM AND ENCAPSULANT FILM COMPRISING SAME

      
Application Number KR2023007461
Publication Number 2024/043449
Status In Force
Filing Date 2023-05-31
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Jong Gil
  • Lee, Eun Jung
  • Gong, Jin Sam
  • Park, Sang Eun
  • Lee, Si Jung

Abstract

The present invention relates to a composition for an encapsulant film, an encapsulant film, and a solar cell module which comprise an ethylene/alpha-olefin copolymer. When an encapsulant film is manufactured using the composition for an encapsulant film of the present invention, the dipping time of the ethylene/alpha-olefin copolymer is reduced, and thus the encapsulant film can be more economically produced. In addition, the composition for an encapsulant film prepared using the present invention exhibits an excellent degree of cross-linking.

IPC Classes  ?

83.

ENCAPSULATION FILM COMPOSITION AND ENCAPSULATION FILM COMPRISING SAME

      
Application Number KR2023007772
Publication Number 2024/043462
Status In Force
Filing Date 2023-06-07
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Young Woo
  • Gong, Jin Sam
  • Jun, Jung Ho
  • Lee, Eun Jung
  • Hong, Sang Hyun
  • Lee, Hye Ji
  • Han, Sang Wook

Abstract

The present invention relates to an encapsulation film composition, an encapsulation film and a solar cell module, the encapsulation film composition comprising an ethylene/α-olefin copolymer and having excellent compatibility with a cross-linking additive.

IPC Classes  ?

84.

POLYCARBONATE RESIN AND METHOD FOR PRODUCING SAME

      
Application Number KR2023012404
Publication Number 2024/043663
Status In Force
Filing Date 2023-08-22
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Il Hwan
  • Kim, Kyeongmun
  • Bae, Jaesoon
  • Baek, Hyeonwoo
  • Yoo, Seungmin
  • Lee, Seungmook
  • Yim, Hye Jin

Abstract

The present specification relates to a polycarbonate resin having a high shear viscosity of 10 Pa·s to 260 Pa·s at 250 °C.

IPC Classes  ?

  • C08G 64/16 - Aliphatic-aromatic or araliphatic polycarbonates
  • C08G 64/08 - Aromatic polycarbonates not containing aliphatic unsaturation containing atoms other than carbon, hydrogen or oxygen
  • C08L 69/00 - Compositions of polycarbonates; Compositions of derivatives of polycarbonates
  • G02B 1/04 - Optical elements characterised by the material of which they are made; Optical coatings for optical elements made of organic materials, e.g. plastics
  • C08G 64/04 - Aromatic polycarbonates

85.

NOVEL COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING THE SAME

      
Application Number KR2023012512
Publication Number 2024/043703
Status In Force
Filing Date 2023-08-23
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Young Seok
  • Kim, Minjun
  • Suh, Sang Duk
  • Jung, Min Woo
  • Kim, Donghee
  • Oh, Joongsuk
  • Kim, Soyeon

Abstract

The present invention relates to a novel compound and an organic light-emitting device comprising same.

IPC Classes  ?

  • 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
  • H10K 85/60 - Organic compounds having low molecular weight
  • H10K 50/18 - Carrier blocking layers

86.

SOLID ELECTROLYTE AND ALL-SOLID-STATE BATTERY COMPRISING SAME

      
Application Number KR2023012616
Publication Number 2024/043740
Status In Force
Filing Date 2023-08-25
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Jeon, Do Yeon
  • Son, Byoung Kuk
  • Lee, Seong Ho
  • Park, Chang Hun
  • Kim, In Gyu
  • Chung, Ha Bin
  • Lee, Dong Geon

Abstract

sss) (unit: Å) of a S2- ion is 0.20-0.30; and an all-solid-state battery comprising same.

IPC Classes  ?

87.

ELECTROLYTE FOR LITHIUM-SULFUR SECONDARY BATTERY AND LITHIUM-SULFUR SECONDARY BATTERY COMPRISING SAME

      
Application Number KR2023011379
Publication Number 2024/043567
Status In Force
Filing Date 2023-08-03
Publication Date 2024-02-29
Owner
  • LG ENERGY SOLUTION, LTD. (Republic of Korea)
  • LG CHEM, LTD. (Republic of Korea)
  • LG MANAGEMENT DEVELOPMENT INSTITUTE (Republic of Korea)
Inventor
  • Park, Seonghyo
  • Jeon, Hyelim
  • Cha, Sunyoung
  • Lee, Boram
  • Lee, Changhoon
  • Yoo, Solji
  • Jang, Eunji
  • Han, Kyeong Hwan
  • Kwack, Hobeom
  • Han, Sehui
  • Park, Changyoung
  • Lee, Jaewan

Abstract

2822S).

IPC Classes  ?

  • H01M 10/0567 - Liquid materials characterised by the additives
  • H01M 10/0569 - Liquid materials characterised by the solvents
  • H01M 10/052 - Li-accumulators
  • H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof

88.

HETEROCYCLIC COMPOUND AS DIACYLGLYCEROL KINASE INHIBITOR AND USE THEREOF

      
Application Number 18254511
Status Pending
Filing Date 2021-11-25
First Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Byung Gyu
  • Yoon, Su Young
  • Kwak, Young Shin
  • Jang, Chang Young

Abstract

The present invention relates to a heterocyclic compound, represented by chemical formula 1, exhibiting a diacylglycerol kinase inhibitor activity, a pharmaceutical composition comprising same as an active ingredient, and a use thereof.

IPC Classes  ?

89.

METHOD FOR PREPARING ISOPROPYL ALCOHOL

      
Application Number KR2023007144
Publication Number 2024/043443
Status In Force
Filing Date 2023-05-25
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Sung June
  • Lee, Sung Kyu
  • Jang, Kyung Soo
  • Lim, Kil Taek

Abstract

The present invention provides a method for preparing isopropyl alcohol (IPA), comprising the steps of: (S1) passing reaction water through a first heat exchanger and a second heat exchanger to raise the temperature thereof; (S2) supplying, to a reactor, the reaction water having passed through the second heat exchanger along with a propylene monomer, as a feed stream to produce a gaseous reaction product comprising IPA; (S3) purifying IPA from the gaseous reaction product and recovering process water therefrom; and (S4) passing the process water through the second heat exchanger to cool same, and transferring a portion of the cooled process water to the first heat exchanger, wherein the temperature of the reaction water is primarily raised by coming into contact with the portion of the cooled process water in the first heat exchanger, and then secondarily raised by coming into contact with the process water in the second heat exchanger.

IPC Classes  ?

  • 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 29/76 - Separation; Purification; Stabilisation; Use of additives by physical treatment
  • C07C 31/12 - Monohydroxylic acyclic alcohols containing four carbon atoms
  • C07C 29/88 - Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
  • C07C 31/10 - Monohydroxylic acyclic alcohols containing three carbon atoms

90.

POLYESTER RESIN COMPOSITION, PREPARATION METHOD THEREFOR, AND MOLDED ARTICLE MANUFACTURED THEREFROM

      
Application Number KR2023010245
Publication Number 2024/043533
Status In Force
Filing Date 2023-07-18
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Lee, Hyun Seok
  • Ko, Gun
  • Son, Sun Mo
  • Kong, Seonho

Abstract

The present invention relates to a polyester resin composition, a preparation method therefor, and a molded article manufactured therefrom. The polyester resin composition according to the present invention, through changes in raw materials that are used, satisfies the balance of properties, such as mechanical properties, electrical properties, fluidity, and flame retardancy, enough to replace conventional halogen-based flame retardant-containing polyester materials, and provides excellent product reliability, heat resistance, and appearance quality.

IPC Classes  ?

91.

METHOD FOR PRODUCING SILICA AEROGEL BLANKET

      
Application Number KR2023012203
Publication Number 2024/043616
Status In Force
Filing Date 2023-08-17
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Oh, Myung Eun
  • Park, Sang Woo
  • Kim, Mi Ri
  • Lee, Kyu Reon
  • Oh, Kyoung Shil

Abstract

The present invention relates to a method for producing a silica aerogel blanket, the method comprising a steam drying step.

IPC Classes  ?

  • C01B 33/158 - Purification; Drying; Dehydrating
  • C01B 33/159 - Coating or hydrophobisation
  • B01J 13/00 - Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons

92.

POLYMER COMPOSITION

      
Application Number KR2023012393
Publication Number 2024/043658
Status In Force
Filing Date 2023-08-22
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kang, Sun Ah
  • Cho, Beom Shin
  • Yun, Hae Sung
  • Choi, Hyung Sam
  • Ham, Kyung Rok

Abstract

The present specification discloses a polymer composition. The polymer composition comprises a polysaccharide component, and the polysaccharide component comprises a radical polymeric functional group and a non-radical polymeric functional group. The polysaccharide component can form a polymer including: a polymer chain formed by the polymerization of the radical polymeric functional group; and a covalent bond formed by the reaction of the non-radical polymeric functional group. The polymer can form an absorbent material having excellent absorptiveness, a biodegradable material having excellent biodegradability, or a material that is both absorbent and biodegradable. The present application can also provide a use of the polymer composition or the polymer.

IPC Classes  ?

  • C08B 31/00 - Preparation of chemical derivatives of starch
  • C08B 37/08 - Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
  • C08L 3/04 - Starch derivatives
  • C08L 5/08 - Chitin; Chondroitin sulfate; Hyaluronic acid; Derivatives thereof
  • C08K 5/00 - Use of organic ingredients

93.

ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY

      
Application Number KR2023012396
Publication Number 2024/043660
Status In Force
Filing Date 2023-08-22
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Seo, Jung Hyun
  • Ko, Kyung Moon
  • Lee, Seungho
  • Kim, Yu Jin
  • Jung, Soonhwa

Abstract

The present invention relates to an electrode for a lithium secondary battery and to a lithium secondary battery, the electrode comprising a porous layer which is formed on an electrode substrate, and includes: a binder resin comprising a (co)polymer having a predetermined structure; and inorganic fine particles.

IPC Classes  ?

  • H01M 4/13 - Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
  • H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
  • H01M 4/139 - Processes of manufacture
  • H01M 4/02 - Electrodes composed of, or comprising, active material

94.

NOVEL COMPOUND AND ORGANIC LIGHT-EMITTING DEVICE COMPRISING SAME

      
Application Number KR2023012502
Publication Number 2024/043698
Status In Force
Filing Date 2023-08-23
Publication Date 2024-02-29
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Young Seok
  • Kim, Minjun
  • Suh, Sang Duk
  • Jung, Min Woo
  • Kim, Donghee
  • Oh, Joongsuk
  • Kim, Soyeon

Abstract

The present invention relates to a novel compound and an organic light-emitting device comprising same.

IPC Classes  ?

  • 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
  • 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

95.

ORGANIC LIGHT EMITTING DEVICE

      
Application Number 18038369
Status Pending
Filing Date 2022-07-22
First Publication Date 2024-02-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Kim, Minjun
  • Lee, Dong Hoon
  • Suh, Sang Duk
  • Kim, Young Seok

Abstract

An organic light emitting device comprising an anode, a cathode, and a light emitting layer between the anode and the cathode, the light emitting layer including a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, and having improved driving voltage, efficiency and lifetime is provided. An organic light emitting device comprising an anode, a cathode, and a light emitting layer between the anode and the cathode, the light emitting layer including a compound represented by Chemical Formula 1 and a compound represented by Chemical Formula 2, and having improved driving voltage, efficiency and lifetime is provided.

IPC Classes  ?

  • H10K 85/60 - Organic compounds having low molecular weight
  • 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
  • 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 405/10 - 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
  • C07F 7/08 - Compounds having one or more C—Si linkages
  • H10K 85/40 - Organosilicon compounds, e.g. TIPS pentacene
  • C07D 209/86 - Carbazoles; Hydrogenated carbazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
  • C07D 405/12 - 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 chain containing hetero atoms as chain links
  • C07D 209/88 - Carbazoles; Hydrogenated carbazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
  • C07D 409/12 - Heterocyclic compounds containing two or more hetero rings, at least one ring having sulfur atoms as the only ring hetero atoms containing two hetero rings linked by a chain containing hetero atoms as chain links
  • C07D 209/80 - [b, c]- or [b, d]-condensed

96.

PRESSURE-SENSITIVE ADHESIVE COMPOSITION

      
Application Number 18258667
Status Pending
Filing Date 2022-04-15
First Publication Date 2024-02-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Ryu, Seung Yeon
  • Kim, Hyun Cheol
  • Lee, Yeon Keun
  • Kim, Ji Young

Abstract

A pressure-sensitive adhesive composition for forming a pressure-sensitive adhesive layer, which is applied to a flexible device, thereby effectively responding to repeated deformation and recovery, causing no defects (for example, observation of deformation traces and the like) before and after deformation, having excellent cuttability and workability, causing no lifting, delamination, and/or bubble generation, and exhibiting a transmittance at a level capable of omitting a polarizing plate is provided.

IPC Classes  ?

  • C09J 7/38 - Pressure-sensitive adhesives [PSA]
  • C09J 133/06 - 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

97.

Preparation Method of Super Absorbent Polymer

      
Application Number 18269842
Status Pending
Filing Date 2022-08-26
First Publication Date 2024-02-22
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Lee, Jungmin
  • Kim, Ju Eun
  • Lee, Serin
  • Lee, Hoyong

Abstract

This invention relates to a method for preparing super absorbent polymer, where wherein colloidal silica is added during coarse grinding, and/or silica is introduced during surface crosslinking. According to the preparation method of super absorbent polymer of the invention, super absorbent polymer that maintains excellent absorption properties, and simultaneously, exhibits improved vortex time and anti-caking efficiency, can be provided.

IPC Classes  ?

  • B01J 20/26 - Synthetic macromolecular compounds
  • B01J 20/30 - Processes for preparing, regenerating or reactivating
  • B01J 20/10 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
  • B01J 20/28 - Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties

98.

HEAT INTEGRATION SEPARATION SYSTEM

      
Application Number 18271433
Status Pending
Filing Date 2022-06-16
First Publication Date 2024-02-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Choi, Yong Suk
  • Lee, Sung Kyu
  • Choo, Yeon Uk

Abstract

Provided is a heat integration separation system including a first column, a second column, a compressor, a first heat exchanger and a second heat exchanger, wherein an upper discharge stream of the first column passes through the compressor to be compressed and then heat-exchanged with a lower discharge stream of the second column in the second heat exchanger, wherein an upper discharge stream of the second column is heat-exchanged with a lower discharge stream of the first column in the first heat exchanger, and wherein the heat integration separation system satisfies Equation 1 (refer to the specification).

IPC Classes  ?

  • B01D 3/00 - Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
  • B01D 3/14 - Fractional distillation

99.

Positive Electrode Active Material for Lithium Secondary Battery, Method of Preparing the Same, and Positive Electrode for Lithium Secondary Battery and Lithium Secondary Battery which Include the Positive Electrode Active Material

      
Application Number 18385577
Status Pending
Filing Date 2023-10-31
First Publication Date 2024-02-22
Owner LG Chem, Ltd. (Republic of Korea)
Inventor
  • Jang, Wook
  • Park, Hong Kyu
  • Nam, Hyo Joung
  • Kim, Seong Bae
  • Kim, Dong Jin

Abstract

A method of preparing a positive electrode active material includes mixing a positive electrode active material precursor with a lithium raw material and performing a primary heat treatment, and performing a secondary heat treatment at a temperature lower than that of the primary heat treatment to prepare a positive electrode active material. The primary heat treatment and the secondary heat treatment are respectively performed in an oxygen atmosphere. The secondary heat treatment is performed in the oxygen atmosphere with an oxygen concentration of 50% or more.

IPC Classes  ?

  • 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 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 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries

100.

METHOD FOR PREPARING ISOPROPYL ALCOHOL

      
Application Number KR2023007922
Publication Number 2024/039022
Status In Force
Filing Date 2023-06-09
Publication Date 2024-02-22
Owner LG CHEM, LTD. (Republic of Korea)
Inventor
  • Hwang, Sung June
  • Lee, Sung Kyu
  • Kim, Sung Kyun
  • Jang, Kyung Soo

Abstract

The present invention relates to a method for producing IPA, the method comprising a purification step using multiple columns, wherein: through a first column, a feed stream containing IPA, NPA, water, and high-boiling point organic matter is separated into a top stream containing a mixture of IPA, NPA, and water, and a bottom stream containing water and high-boiling point organic matter; in the second column, an organic solvent is used to discharge a bottom stream containing IPA and NPA and a top stream where a ternary azeotrope of the solvent, water, and IPA is formed from the top stream of the first column; in the third column having a dividing wall structure, a mixed stream obtained by mixing a branch stream from the bottom stream of the first column and the bottom stream from the second column is supplied to a first region and the mixed stream is separated into a top stream containing water with the high-boiling point organic matter removed therefrom, a side stream containing IPA with NPA removed therefrom, and a bottom stream containing the high-boiling point organic matter and NPA; and the side stream containing IPA is recovered from a second region.

IPC Classes  ?

  • C07C 29/88 - Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
  • C07C 29/76 - Separation; Purification; Stabilisation; Use of additives by physical treatment
  • C07C 31/10 - Monohydroxylic acyclic alcohols containing three carbon atoms
  1     2     3     ...     100        Next Page