Patents Assigned to LG Chem, Ltd.
  • Publication number: 20240101579
    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.
    Type: Application
    Filed: December 10, 2021
    Publication date: March 28, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Cheol Kyu JUNG, Seung Wan KANG, Byung Gyu KIM
  • Publication number: 20240101729
    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.
    Type: Application
    Filed: February 18, 2022
    Publication date: March 28, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Christine Jisoo SONG, Jiwon YOON, Yi Young CHOI
  • Publication number: 20240101738
    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.
    Type: Application
    Filed: October 28, 2022
    Publication date: March 28, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Jin Sam Gong, Eun Jung Lee, Jeong Yon Jeong, Young Woo Lee, Jung Kyu Lee, Si Jung Lee, Hye Ji Lee
  • Publication number: 20240101732
    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.
    Type: Application
    Filed: March 25, 2022
    Publication date: March 28, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Kyung Seop Noh, Heekwang Park, Seong Min Chae, Jihwa Ye
  • Publication number: 20240101744
    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.
    Type: Application
    Filed: February 26, 2021
    Publication date: March 28, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Jung Hwan Oh, Ho Young Lee, Jae Sun Choi
  • Publication number: 20240101740
    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.
    Type: Application
    Filed: October 7, 2022
    Publication date: March 28, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Bethy Kim, Je Sik Jung, Sang Hyuk Seo, Sung Bum Hong, Sol Yi Lee
  • Publication number: 20240106077
    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.
    Type: Application
    Filed: December 17, 2021
    Publication date: March 28, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Sung-Jae Han, Joo-Sung Lee, Sung Cik Mun
  • Patent number: 11939494
    Abstract: A technical problem to be achieved by the present disclosure is to provide an adhesive resin composition for a conductor, which contains inorganic fillers having different average particle diameters and has enhanced thermal conductivity as a result of controlling the content of the inorganic fillers, and an adhesive film for a semiconductor produced using the same.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: March 26, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Jong Min Jang, Byoung Ju Choi, Kwang Joo Lee, Yu Lin Sun
  • Patent number: 11940636
    Abstract: The present disclosure relates to a decoration member comprising: a color expression layer comprising a light reflection layer and a light absorption layer provided on the light reflection layer; and a substrate provided on one surface of the color expression layer, in which the light absorption layer comprises a copper nickel oxide (CuaNibOx).
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: March 26, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Yong Chan Kim, Ki Hwan Kim, Nansra Heo, Jeong Woo Shon, Pilsung Jo
  • Patent number: 11940694
    Abstract: A method for manufacturing a light modulation device is provided. The light modulation device is capable of removing defects such as orientation irregularities. The light modulation device further improves the orientation state in the light modulation device that adjusts orientation of a liquid crystal compound or the like with a liquid crystal alignment film and a pressure-sensitive adhesive layer or adhesive layer.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: March 26, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Jung Sun You, Dong Hyun Oh, Cheol Min Yun, Jin Hong Kim, Jung Woon Kim, Min Jun Gim
  • Patent number: 11939278
    Abstract: Provided is a method of producing an oligomer, the method including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to produce a reaction product; supplying a discharge stream of the reactor to a separation device, and supplying an upper discharge stream of the separation device including an unreacted monomer to the reactor and supplying a lower discharge stream of the separation device to a settling tank; settling a polymer in the settling tank and removing the polymer, and supplying the lower discharge stream of the separation device from which the polymer is removed to a high-boiling point separation column; removing a high-boiling point material from a lower discharge stream of the high-boiling point separation column and supplying an upper discharge stream of the high-boiling point separation column including an oligomer to a solvent separation column; and separating a solvent and the oligomer in the solvent separation column.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: March 26, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Kyung Seog Youk, Min Ho Sun, Jong Hun Song, Hong Min Lee, Moon Sub Hwang, Jeong Seok Lee
  • Patent number: 11939282
    Abstract: The present disclosure provides a method for decomposing a phenolic by-product, the method including: a step S10 of injecting and mixing a bisphenol A by-product produced in a bisphenol A production process, a mixed by-product stream of phenol by-products produced in a phenol production process, a decomposition apparatus side discharge stream, and a process water stream in a mixing apparatus; a step S20 of injecting a mixing apparatus discharge stream discharged from the mixing apparatus into a phase separation apparatus and phase-separating the mixing apparatus discharge stream into an oil-phase stream and a liquid-phase stream; a step S30 of feeding the oil-phase stream, which is phase-separated in the step S20 and discharged from the phase separation apparatus, to a decomposition apparatus to decompose the oil-phase stream; and a step S40 of circulating the decomposition apparatus side discharge stream obtained by the decomposition in the step S30 to the mixing apparatus in the step S10.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: March 26, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Min Suk Kang, Sang Beom Lee, Joon Ho Shin
  • Patent number: 11938457
    Abstract: The present disclosure relates to an apparatus for preparing an oligomer, the apparatus including: a reactor for oligomerizing a feed stream containing a fed monomer; a stirrer inserted into a hole formed in an upper portion of the reactor; and a solvent transfer line extending inward from a side of the reactor, wherein the stirrer includes a rotating shaft vertically extending downward from the upper portion of the reactor, and a blade having a conical shape whose vertex is positioned at a lower end of the rotating shaft and outer diameter increases from a bottom toward a top, and the solvent transfer line has a plurality of spray nozzles formed in a direction toward the blade.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: March 26, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Hong Min Lee, Jeong Seok Lee, Jong Hun Song, Kyung Seog Youk, Dong Kwon Lee, Moon Sub Hwang
  • Patent number: 11939453
    Abstract: A plasticizer composition including a citrate-based material and an epoxidized oil, and the plasticizer composition capable of maintaining an excellent plasticization efficiency and providing an improved mechanical properties and stress resistance when compared with conventional phthalate-based plasticizer products.
    Type: Grant
    Filed: June 11, 2020
    Date of Patent: March 26, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Hyun Kyu Kim, Seok Ho Jeong, Jeong Ju Moon, Woo Hyuk Choi
  • Publication number: 20240093002
    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.
    Type: Application
    Filed: March 8, 2022
    Publication date: March 21, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Soonhwa JUNG, Jeewoo LIM, Yeongrae CHANG, Jisung CHOI
  • Publication number: 20240091235
    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).
    Type: Application
    Filed: December 21, 2021
    Publication date: March 21, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Hee Dong PARK, Su Jin YEO, Hyun Seo PARK, Jin Sook PARK, Hye Won AHN
  • Publication number: 20240091075
    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.
    Type: Application
    Filed: May 11, 2022
    Publication date: March 21, 2024
    Applicant: LG Chem, Ltd.
    Inventors: Kiyoul Yoon, Myoungjin Shin, Seongkyun Kang, Yu Jin Kim, Gicheul Kim
  • Publication number: 20240092974
    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.
    Type: Application
    Filed: September 14, 2022
    Publication date: March 21, 2024
    Applicant: LG CHEM, LTD.
    Inventors: Mi Eun KANG, Chan Hyo PARK, Jinyoung PARK, Chae Won PARK, Min Wook LEE
  • Patent number: 11932709
    Abstract: The present invention relates to a diene-based rubber latex including a polymer aggregate and having an extra large diameter, a method for preparing same and a graft copolymer with a core-shell structure, including same and having excellent impact strength and surface properties. A diene-based rubber latex of which 14 wt % to 26 wt % has diameter of 100 nm to less than 300 nm, 62 wt % to 81 wt % has a diameter of 300 nm to less than 800 nm, and 5 wt % to 14 wt % has a diameter of 800 nm to less than 1000 nm, based on 100 wt % of total rubber particles.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: March 19, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Chang Hong Bak, Young Hwan Jeong, Young Min Kim
  • Patent number: 11932784
    Abstract: The present invention provides an adhesive composition for a dicing tape, which may prevent the success rate of chip pick-up from decreasing due to an oxygen inhibition phenomenon occurring in a dicing process, and a dicing tape including the same. The adhesive composition for a dicing tape includes an adhesive binder, a singlet oxygen scavenger, a photosensitizer, and a photoinitiator.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: March 19, 2024
    Assignee: LG CHEM, LTD.
    Inventors: Da Ae Kim, Ji Ho Han, Kwang Joo Lee, Eun Yeong Kim, Mi Jang