Patents by Inventor Moon Sub HWANG

Moon Sub HWANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • 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: 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: 11904291
    Abstract: The present disclosure relates to an apparatus for preparing an oligomer, and more particularly, to an apparatus for preparing an oligomer including: a reactor including a gaseous area having a first gaseous reactant inlet provided at a lower portion thereof, and a reaction area in which a reaction medium reacts with the gaseous reactant above the gaseous area; a second gaseous reactant inlet provided on an inner wall of the reactor in the gaseous area and a third gaseous reactant inlet provided on an inner wall of the reactor facing the second gaseous reactant inlet; and a first injection nozzle connected to the second gaseous reactant inlet and a second injection nozzle connected to the third gaseous reactant inlet.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: February 20, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Moon Sub Hwang, Min Ho Sun, Jong Hun Song, Kyung Seog Youk, Jeong Seok Lee, Hong Min Lee
  • Patent number: 11904763
    Abstract: Disclosed are a lighting grill assembly for a vehicle and a method of manufacturing the same, the lighting grill assembly for a vehicle a grill cover, a black paint portion painted using a black paint on a rear surface of the grill cover, and the black paint portion forming a light transmitting portion through which light passes by removing a part of the painted black paint, an inner lens spaced apart from the rear surface of the grill cover in a rearward direction, and a metal layer is deposited on a surface of the inner lens, and a light source configured to radiate light from a rear of the inner lens.
    Type: Grant
    Filed: April 20, 2023
    Date of Patent: February 20, 2024
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Moon Sub Hwang, Soon Mo Lee
  • Patent number: 11833484
    Abstract: The present disclosure relates to an apparatus for preparing an oligomer, including: a reactor receiving a monomer stream and performing an oligomerization reaction to prepare a reaction product; a product discharge line for transferring a reaction product stream discharged from the reactor; and a bubble catcher provided in any area of the product discharge line to remove bubbles contained in the reaction product stream.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: December 5, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Moon Sub Hwang, Jeong Seok Lee, Hong Min Lee, Jong Hun Song, Kyung Seog Youk, Min Ho Sun, Hyun Seok Kim
  • Patent number: 11731919
    Abstract: An apparatus for preparing an oligomer including: a reactor supplied with a monomer stream and a solvent stream to perform an oligomerization reaction; a product discharge line provided on a lower portion of a side surface of the reactor; a washing liquid supply line connected to a first point of the product discharge line; and a washing liquid discharge line extending from a second point of the product discharge line, wherein the product discharge line includes a branch point at which the product discharge line is branched into two or more lines and a junction point at which the respective branched lines are joined, and the product discharge line includes pressure control devices provided in each of the two or more branched lines.
    Type: Grant
    Filed: July 1, 2021
    Date of Patent: August 22, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Jong Hun Song, Jeong Seok Lee, Hong Min Lee, Moon Sub Hwang, Min Ho Sun, Kyung Seog Youk
  • Publication number: 20230256899
    Abstract: Disclosed are a lighting grill assembly for a vehicle and a method of manufacturing the same, the lighting grill assembly for a vehicle a grill cover, a black paint portion painted using a black paint on a rear surface of the grill cover, and the black paint portion forming a light transmitting portion through which light passes by removing a part of the painted black paint, an inner lens spaced apart from the rear surface of the grill cover in a rearward direction, and a metal layer is deposited on a surface of the inner lens, and a light source configured to radiate light from a rear of the inner lens.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 17, 2023
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Moon Sub HWANG, Soon Mo LEE
  • Publication number: 20230183148
    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: Application
    Filed: September 6, 2021
    Publication date: June 15, 2023
    Inventors: Kyung Seog YOUK, Min Ho SUN, Jong Hun SONG, Hong Min LEE, Moon Sub HWANG, Jeong Seok LEE
  • Patent number: 11667235
    Abstract: Disclosed are a lighting grill assembly for a vehicle and a method of manufacturing the same, the lighting grill assembly for a vehicle a grill cover, a black paint portion painted using a black paint on a rear surface of the grill cover, and the black paint portion forming a light transmitting portion through which light passes by removing a part of the painted black paint, an inner lens spaced apart from the rear surface of the grill cover in a rearward direction, and a metal layer is deposited on a surface of the inner lens, and a light source configured to radiate light from a rear of the inner lens.
    Type: Grant
    Filed: July 26, 2022
    Date of Patent: June 6, 2023
    Assignee: HYUNDAI MOBIS CO., LTD.
    Inventors: Moon Sub Hwang, Soon Mo Lee
  • Publication number: 20230158946
    Abstract: Disclosed are a lighting grill assembly for a vehicle and a method of manufacturing the same, the lighting grill assembly for a vehicle a grill cover, a black paint portion painted using a black paint on a rear surface of the grill cover, and the black paint portion forming a light transmitting portion through which light passes by removing a part of the painted black paint, an inner lens spaced apart from the rear surface of the grill cover in a rearward direction, and a metal layer is deposited on a surface of the inner lens, and a light source configured to radiate light from a rear of the inner lens.
    Type: Application
    Filed: July 26, 2022
    Publication date: May 25, 2023
    Applicant: HYUNDAI MOBIS CO., LTD.
    Inventors: Moon Sub HWANG, Soon Mo LEE
  • Publication number: 20230098226
    Abstract: Provided is a method for preparing an oligomer including: supplying a monomer stream and a solvent stream to a reactor to perform an oligomerization reaction to prepare a reaction product; supplying a discharge stream from the reactor including the reaction product to a separation device and supplying a lower discharge stream from the separation device to a settling tank; adding an organic flocculant to the settling tank to settle and remove a polymer and supplying the lower discharge stream from the separation device from which the polymer is removed to a high boiling point separation column; and removing a high boiling point material from the lower portion in the high boiling point separation column and supplying an upper discharge stream including an oligomer to a solvent separation column.
    Type: Application
    Filed: January 10, 2022
    Publication date: March 30, 2023
    Applicant: LG Chem, Ltd.
    Inventors: Kyung Seog Youk, Jong Hun Song, Min Ho Sun, Hong Min Lee, Hyun Seok Kim, Moon Sub Hwang, Jeong Seok Lee
  • Patent number: 11583825
    Abstract: The present disclosure provides an apparatus for preparing oligomer including: a reactor; a gas-liquid separator; a solvent transfer line; a second transfer line; a first spray nozzle unit; and a second spray nozzle unit. The apparatus is capable of improving stability of the entire process by including a first spray nozzle unit and a second spray nozzle unit in a reactor and thus preventing by-products containing polymer substances such as C20+ from being entrained with a desired product during a reaction.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: February 21, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Moon Sub Hwang, Jeong Seok Lee, Jong Hun Song, You Na Kim, Hong Min Lee
  • Publication number: 20230041232
    Abstract: The present disclosure relates to an apparatus for preparing an oligomer, including: a reactor receiving a monomer stream and performing an oligomerization reaction to prepare a reaction product; a product discharge line for transferring a reaction product stream discharged from the reactor; and a bubble catcher provided in any area of the product discharge line to remove bubbles contained in the reaction product stream.
    Type: Application
    Filed: August 12, 2021
    Publication date: February 9, 2023
    Inventors: Moon Sub HWANG, Jeong Seok LEE, Hong Min LEE, Jong Hun SONG, Kyung Seog YOUK, Min Ho SUN, Hyun Seok KIM
  • Publication number: 20220379277
    Abstract: Provided are a sparger including: a disc-shaped body; and a first hole and a second hole having different sizes from each other provided in the body, wherein a diameter of the second hole is smaller than a diameter of the first hole, and a reactor comprising the sparger.
    Type: Application
    Filed: July 22, 2021
    Publication date: December 1, 2022
    Inventors: Hong Min LEE, Moon Sub HWANG, Min Ho SUN, Jong Hun SONG, Kyung Seog YOUK, Jeong Seok LEE
  • Patent number: 11511255
    Abstract: Provided is an apparatus for preparing oligomer including: a reactor for carrying out oligomerization reaction by supplying a monomer stream and a solvent stream; and line 1 and line 2 which are separately provided in a lower side of the reactor, wherein line 1 includes a first level control valve and line 2 includes a second level control valve, and the reactor is periodically alternately operated in first operation mode and second operation mode, thereby switching a pipe through which the product is discharged, so that a plugging phenomenon of the pipe through which the product is discharged and the valve can be prevented.
    Type: Grant
    Filed: May 20, 2020
    Date of Patent: November 29, 2022
    Assignee: LG Chem, Ltd.
    Inventors: Jong Hun Song, Jeong Seok Lee, You Na Kim, Hong Min Lee, Moon Sub Hwang
  • Publication number: 20220347648
    Abstract: The present disclosure relates to an apparatus for preparing an oligomer, and more particularly, to an apparatus for preparing an oligomer including: a reactor including a gaseous area having a first gaseous reactant inlet provided at a lower portion thereof, and a reaction area in which a reaction medium reacts with the gaseous reactant above the gaseous area; a second gaseous reactant inlet provided on an inner wall of the reactor in the gaseous area and a third gaseous reactant inlet provided on an inner wall of the reactor facing the second gaseous reactant inlet; and a first injection nozzle connected to the second gaseous reactant inlet and a second injection nozzle connected to the third gaseous reactant inlet.
    Type: Application
    Filed: July 9, 2021
    Publication date: November 3, 2022
    Inventors: Moon Sub HWANG, Min Ho SUN, Jong Hun SONG, Kyung Seog YOUK, Jeong Seok LEE, Hong Min LEE
  • Publication number: 20220340500
    Abstract: An apparatus for preparing an oligomer including: a reactor supplied with a monomer stream and a solvent stream to perform an oligomerization reaction; a product discharge line provided on a lower portion of a side surface of the reactor; a washing liquid supply line connected to a first point of the product discharge line; and a washing liquid discharge line extending from a second point of the product discharge line, wherein the product discharge line includes a branch point at which the product discharge line is branched into two or more lines and a junction point at which the respective branched lines are joined, and the product discharge line includes pressure control devices provided in each of the two or more branched lines.
    Type: Application
    Filed: July 1, 2021
    Publication date: October 27, 2022
    Inventors: Jong Hun SONG, Jeong Seok LEE, Hong Min LEE, Moon Sub HWANG, Min Ho SUN, Kyung Seog YOUK
  • Publication number: 20220221121
    Abstract: Disclosed is a lighting apparatus and a method of manufacturing the same, which may improve an external appearance and marketability, the apparatus including a light transmissive lighting cover configured to transmit light through a first surface and a second surface thereof, and an LED module having an LED mounted on the second surface of the light transmissive lighting cover to emit light, wherein the light transmissive lighting cover includes a design pattern portion formed by the transmission of the light when the LED is turned on, a painted portion formed on the first surface of the light transmissive lighting cover, the painted surface being visible, in response to the LED being turned off, and a metal deposition surface formed on the painted portion.
    Type: Application
    Filed: January 7, 2022
    Publication date: July 14, 2022
    Applicant: HYUNDAI MOBIS Co., Ltd.
    Inventor: Moon Sub HWANG
  • Publication number: 20220143568
    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: Application
    Filed: November 13, 2020
    Publication date: May 12, 2022
    Inventors: Hong Min LEE, Jeong Seok LEE, Jong Hun SONG, Kyung Seog YOUK, Dong Kwon LEE, Moon Sub HWANG
  • Publication number: 20220055010
    Abstract: The present disclosure provides an apparatus for preparing oligomer including: a reactor; a gas-liquid separator; a solvent transfer line; a second transfer line; a first spray nozzle unit; and a second spray nozzle unit. The apparatus is capable of improving stability of the entire process by including a first spray nozzle unit and a second spray nozzle unit in a reactor and thus preventing by-products containing polymer substances such as C20+ from being entrained with a desired product during a reaction.
    Type: Application
    Filed: August 7, 2020
    Publication date: February 24, 2022
    Inventors: Moon Sub HWANG, Jeong Seok LEE, Jong Hun SONG, You Na KIM, Hong Min LEE