Patents Assigned to LG Chem, Ltd.
  • Preparation Method of Super Absorbent Polymer
    Publication number: 20240034844
    Abstract: The present disclosure relates to a preparation method of a super absorbent polymer. More specifically, it relates to a preparation method of a super absorbent polymer, which can improve a drying efficiency in the preparation process and realize excellent absorption-related properties of the prepared super absorbent polymer by using a specific inorganic material in the reassembly process.
    Type: Application
    Filed: December 8, 2022
    Publication date: February 1, 2024
    Applicant: LG Chem, Ltd.
    Inventor: Junwye Lee
  • Thermoplastic resin composition and molded article including the same
    Patent number: 11884810
    Abstract: The present invention relates to a thermoplastic resin composition and a molded article including the same. More specifically, the thermoplastic resin composition of the present invention includes 100 parts by weight of a base resin consisting of 10 to 30% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-1) including an acrylate rubber having an average particle diameter of 0.05 to 0.15 ?m, 20 to 40% by weight of an acrylate-aromatic vinyl compound-vinyl cyanide compound graft copolymer (A-2) including an acrylate rubber having an average particle diameter of 0.3 to 0.5 ?m, 0 to 35% by weight of an aromatic vinyl polymer (B), and 10 to 60% by weight of a polymethacrylate (C); and 0.5 to 10 parts by weight of a polyamide (D).
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: January 30, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Da Eun Sung, Tae Hoon Kim, Chun Ho Park, Yong Hee An, Wangrae Cho, Ho Hoon Kim, Jeongmin Jang
  • Reverse osmosis membrane, manufacturing method therefor, and water treatment module
    Patent number: 11883785
    Abstract: Provided is a reverse osmosis membrane comprising: a support layer comprising a support and a polysulfone layer; and an active layer, wherein a compression modulus is from 20 MPa to 40 MPa, to a method for manufacturing the same, and a water-treatment module.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: January 30, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Ayoung Lee, Yun Seok Choe, Chong Kyu Shin, Phill Lee
  • Thermoplastic resin composition
    Patent number: 11884808
    Abstract: The present invention relates to a thermoplastic resin composition, which includes a first copolymer formed by polymerizing a monomer mixture of a (meth)acrylate-based monomer, a vinyl cyan-based monomer and a maleimide-based monomer, and having a refractive index of 1.5170 or less and a glass transition temperature of 115.0° C. or more; and a second copolymer formed by graft-copolymerizing an aromatic vinyl-based monomer and a vinyl cyan-based monomer onto an acrylic rubber polymer, and the thermoplastic resin composition according to the present invention has improved heat resistance, colorability and scratch resistance.
    Type: Grant
    Filed: November 28, 2019
    Date of Patent: January 30, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jung Tae Park, Dae Woo Lee, Jae Bum Seo, Gyu Sun Kim, Ji Uk Jang
  • Diol compound, polycarbonate, and preparation method of the same
    Patent number: 11884777
    Abstract: Provided is a diol compound of the following Chemical Formula 1, a polycarbonate comprising the diol compound, and a method of producing the polycarbonate:
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: January 30, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Young Young Hwang, Mooho Hong, Ki Jae Lee
  • System For Automatically Inspecting And Sorting Pellets
    Publication number: 20240024922
    Abstract: A system for automatically inspecting and sorting pellets while continuously transferring the pellets at a high speed to detect and effectively remove pellets that are defective. The system includes a sorter to photograph and inspect a first surface and a second surface of each of the pellets while transferring the pellets. The system separates and removes pellets that are determined as being defective and transfers and loads pellets having good quality to a designated position. The system further includes a sample inspector to receive the plurality of pellets that are determined as good products to manufacture a plate-shaped sample of a molded product and photograph a first surface and a second surface of the manufactured sample, thereby inspecting whether the sample of the molded product is defective.
    Type: Application
    Filed: August 3, 2021
    Publication date: January 25, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Tae Kim, Worl Yong Kim
  • Photocuring Generation-Gas Collecting Device
    Publication number: 20240027307
    Abstract: The present invention relates to a photocuring generation-gas collecting device, which collects gas generated from a sample when the sample is subjected to photocuring using various light wavelengths including ultraviolet rays.
    Type: Application
    Filed: June 10, 2022
    Publication date: January 25, 2024
    Applicant: LG Chem, Ltd.
    Inventors: So Yi Chung, Eunyeong Jin, Young Hee Lim
  • Polyethylene and Preparation Method Thereof
    Publication number: 20240026041
    Abstract: Provided are a polyethylene having excellent processability and capable of reducing an injection molding defect rate, and a method of preparing the same. The polyethylene has an integral value in the region where the Log Mw is 5.5 or more in a GPC curve, wherein the x-axis is log Mw and the y-axis is dw/dlogMw, of 9% or less of the total integral value: and has a ratio (Tc10/Tc40) of a crystallization temperature (Tc10) measured at a cooling rate of 10° C./min to a crystallization temperature (Tc40) measured at a cooling rate of 40° C./min of less than 1.04.
    Type: Application
    Filed: November 29, 2021
    Publication date: January 25, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Yeonji Choe, Jongchan Lee, Jeongkyu Lee, Christine Jisoo Song, Hee Su Oh, Jiwon Yoon, Yi Young Choi, Sung Joon Oh
  • POLYETHYLENE AND PREPARATION METHOD THEREOF
    Publication number: 20240026042
    Abstract: Provided are a polyethylene which is improved in terms of total volatile organic compounds (TVOCs) generated by low molecular weight polymers, thereby being suitable for fiber production, and a method of preparing the same.
    Type: Application
    Filed: November 29, 2021
    Publication date: January 25, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Christine Jisoo SONG, Jiwon YOON, Yi Young CHOI
  • CONTINUOUS POLYMERIZATION REACTOR FOR SUPER ABSORBENT POLYMER AND CONTINUOUS POLYMERIZATION REACTION SYSTEM
    Publication number: 20240026040
    Abstract: A continuous polymerization reactor for super absorbent polymer is disclosed. The continuous polymerization reactor includes a cylindrical body; a discharge part with a diameter decreasing downward, positioned at a lower part of the body; an inlet positioned at an upper part of and connected to the body, into which a monomer composition is introduced; an outlet positioned at a lower part of the discharge part, from which hydrogel polymer is discharged; and a discharge valve opening or closing the outlet, wherein a ratio (H1/D1) of a sum (H1) of a height of the body and a height of the discharge part to a diameter (D1) of the body is 2 to 4. In addition, a continuous polymerization reaction system comprising the continuous polymerization reactor is also disclosed.
    Type: Application
    Filed: June 20, 2022
    Publication date: January 25, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Gyunhyeok AHN, Yoon Jae MIN, Seul Ah LEE, Gicheul KIM, Hee Kwan PARK, Kyunghoon MIN
  • Olefin-Based Polymer
    Publication number: 20240026046
    Abstract: The present invention relates to an olefin-based polymer, particularly, to a low-density olefin-based polymer introducing a highly crystalline region and showing high mechanical rigidity.
    Type: Application
    Filed: March 23, 2022
    Publication date: January 25, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Sang Eun Park, Ji Yoon Woo, In Sung Park, Choong Hoon Lee, Ki Eun Kim, Rae Keun Gwak
  • Resin composition for bonding semiconductors, adhesive film for semiconductor using the same, dicing die bonding film, and method for dicing semiconductor wafer
    Patent number: 11879075
    Abstract: The present invention relates to a resin composition for bonding semiconductors including two types of curing catalyst mixtures together with a heat dissipation filler in which a specific functional group is introduced onto the surface, an adhesive film for semiconductor produced therefrom, a dicing die bonding film and a method for dicing a semiconductor wafer.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: January 23, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Wanjung Kim, Jong Min Jang, Byung Ju Choi, Kwang Joo Lee
  • Compound and organic light emitting device comprising same
    Patent number: 11878962
    Abstract: Provided is a compound of Chemical Formula 1: wherein X is O or S; L1 and L2 each independently is a direct bond or a substituted or unsubstituted arylene group; X1 is N or CR1, X2 is N or CR2, X3 is N or CR3, and at least two of X1 to X3 are N; R1 to R3 each independently is hydrogen, deuterium, or a substituted or unsubstituted alkyl, aryl or heteroaryl group; Ar1 and Ar2 each independently is hydrogen, deuterium, or a substituted or unsubstituted alkyl, aryl or heteroaryl group; positions at which ?is substituted with ?are asymmetric; m1, m2, n1 and n2 each independently is 0 or 1; and m1+m2 is 1, and n1+n2 is 1, and an organic light emitting device comprising the same.
    Type: Grant
    Filed: March 8, 2019
    Date of Patent: January 23, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Dong Uk Heo, Jin Joo Kim, Dong Hoon Lee, Jungoh Huh, Yongbum Cha, Wanpyo Hong
  • Anti-reflective film, polarizing plate, and display apparatus
    Patent number: 11880017
    Abstract: The present invention relates to anti-reflective films including: a light-transmitting substrate; a hard coating layer; and a low refractive layer, wherein the low refractive layer includes a first region including a binder resin and high refractive inorganic nanoparticles and a second region including a binder resin and low refractive inorganic nanoparticles, and when polarization ellipticity measured by ellipsometry is fitted to a Cauchy model for each of the first region and the second region, predetermined requirements are fulfilled.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: January 23, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jinseok Byun, Inyoung Song, Dong Hyun Kim, Kwangseok Seo, Yeongrae Chang
  • Pellet Defect Inspection System Using Multi Color Tone Control And Method For Controlling The Same
    Publication number: 20240017295
    Abstract: A pellet defect inspection system using a multi color tone control, which continuously transfers pellets to detect colors of the pellets, thereby determining whether the pellets are defective, and a method for controlling the same. The pellet defect inspection system includes: a pellet defect inspection device which includes a sorter to photograph a first surface (top) and a second surface (bottom) of each of the pellets while transferring the pellets to inspect the pellets so as to separate and remove pellets that are determined as defective and transfer and load non-defective pellets to designated positions; and a multi color tone pellet inspection controller configured to photograph the first surface and the second surface of each of the pellets transferred along a lane while controlling the pellet transfer and changing an RGBW irradiation section so as to analyze and determine an image.
    Type: Application
    Filed: September 14, 2021
    Publication date: January 18, 2024
    Applicants: LG Chem, Ltd., LG Chem, Ltd.
    Inventors: Hyun Tae Kim, Worl Yong Kim
  • Method for Preparing Super Absorbent Polymer
    Publication number: 20240018321
    Abstract: The present disclosure relates to a method for preparing a super absorbent polymer. More specifically, the above method performs a polymerization reaction of a monomer in the presence of an aqueous dispersion of hydrophobic particles, and thus a super absorbent polymer having an improved absorption rate can be prepared without deterioration in absorption properties.
    Type: Application
    Filed: December 17, 2021
    Publication date: January 18, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Kwangin Shin, Jin Hyuck Ju, Hyungki Yoon, Taebin Ahn, Dong Hoon Park
  • THERMOPLASTIC RESIN COMPOSITION
    Publication number: 20240018347
    Abstract: The present disclosure relates to a thermoplastic resin composition including: a diene-based graft polymer; an acrylic graft polymer; a vinyl-based polymer including a vinyl aromatic monomer unit and a vinyl cyanide-based monomer unit; a polyamide elastomer; an olefin-based polymer including a vinyl acetate monomer unit; an inorganic antibacterial agent including a metal ion supported on a glass carrier; and a zinc oxide having a BET specific surface area of 11 to 28 m2/g.
    Type: Application
    Filed: April 27, 2022
    Publication date: January 18, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Seong Kyun KIM, Seo Hwa KIM, Byoung Il KANG, Se Jin HAN, Yeong Min KIM
  • ORGANIC-INORGANIC HYBRID POLYOLEFIN COMPOSITE AND PREPARATION METHOD THEREOF
    Publication number: 20240018283
    Abstract: The present disclosure relates to an organic-inorganic hybrid polyolefin composite and a preparation method of the same.
    Type: Application
    Filed: November 23, 2021
    Publication date: January 18, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Sang Yool LEE, Joon Hee CHO, Eun Kyoung SONG, Sangeun AN, Eunyoung SHIN, Jinseok LEE, Kiju UM, Jinmo KIM
  • FOLDABLE BACKPLATE FILM MANUFACTURING METHOD
    Publication number: 20240018397
    Abstract: The present application relates to a method for manufacturing a foldable backplate film, and according to one aspect of the present invention, a method for manufacturing a foldable backplate film that the foldable backplate film is manufactured by a method of cutting it in a direction from the release film to the protective film upon half-cutting, and then release-changing the release film, whereby by improving a half-cutting process, the foldable backplate does not fall off upon the release film peeling, is provided.
    Type: Application
    Filed: February 21, 2022
    Publication date: January 18, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Hui Je LEE, Hyun Cheol KIM, In Hwan JEON, Sa Young JUNG, Jin Ho SON
  • Heterocyclic compound and organic light-emitting element comprising same
    Patent number: 11877510
    Abstract: The present specification provides a hetero-cyclic compound and an organic light emitting device comprising the same.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: January 16, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Boonjae Jang, Dong Hoon Lee, Dong Uk Heo, Miyeon Han, Minyoung Kang