Patents by Inventor Jang-soon Kim

Jang-soon Kim 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: 11873425
    Abstract: An adhesive composition and an adhesive film including a cured product thereof is provided.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: January 16, 2024
    Inventors: Jae Sung Hong, Ho Kyung Song, Sle Lee, Jun Man Choi, Jang Soon Kim
  • Publication number: 20240010875
    Abstract: The present disclosure provides an adhesive composition and a surface protective film including the same, which have low low-speed and high-speed peel forces and a high residual adhesion rate.
    Type: Application
    Filed: August 13, 2021
    Publication date: January 11, 2024
    Inventors: Jeong Min CHOI, Jang Soon KIM, Hyun Goo KANG, Jae Seung LYM
  • Patent number: 11851588
    Abstract: The present invention provides an adhesive tape including: a base material; and an adhesive sheet provided on one surface of the base material and including cured products of an aqueous acrylic adhesive composition, in which the adhesive sheet has a porous structure including pores, and wherein the adhesive tape has a water vapor transmission rate of 3,000 g/m2·day or more and 5,000 g/m2·day or less under conditions of a temperature of 40° C. and a relative humidity of 20%, and a method for manufacturing the same.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: December 26, 2023
    Inventors: Jeong-In Han, Won-Gu Choi, Jang-Soon Kim, Tae-Yi Choi, Ji-Yeon Yang, Dan-A Kim, Seo-Hyeon Park
  • Patent number: 11795344
    Abstract: A multilayer marking film is disclosed herein. In some embodiments, a multilayer marking film includes, in sequential order, an adhesive layer, a colored base layer having a first color, and a colored coating layer having a second color, wherein information can be written by laser irradiation on the colored coating layer.
    Type: Grant
    Filed: June 1, 2018
    Date of Patent: October 24, 2023
    Inventors: Myung Hyun Jo, Hye Jin Sim, Jang Soon Kim
  • Publication number: 20230323171
    Abstract: An adhesive composition and a surface protective film using the same are provided. The adhesive composition comprises a urethane resin containing a hydroxyl group; an isocyanate-based curing agent; a (meth)acrylate copolymer of a monomer mixture including a (meth)acrylate monomer containing a hydroxyl group, a (meth)acrylate monomer containing a fluorine based substituent, an alkyl (meth)acrylate monomer having an alkyl group of 1 to 10 carbon atoms and an alkyl (meth)acrylate monomer having an alkyl group of 12 to 22 carbon atoms; and an antistatic agent.
    Type: Application
    Filed: August 13, 2021
    Publication date: October 12, 2023
    Inventors: Jeong Min CHOI, Jang Soon KIM, Hyun Goo KANG, Jae Seurg LYM
  • Patent number: 11745462
    Abstract: An optical adhesive sheet having an excellent repulsion resistance and an excellent swelling rate, and a method for manufacturing the same.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: September 5, 2023
    Inventors: Ae-Jung Jang, Hong-June Choi, Jang-Soon Kim
  • Patent number: 11725126
    Abstract: Provided is a multilayer adhesive tape having excellent step coverage and reworkability. The multilayer adhesive tape sequentially includes: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer, in which the intermediate adhesive layer includes an intermediate adhesive polymer including: a polymerization unit of an alkyl group-containing (meth)acrylate monomer; a polymerization unit of a carboxyl group-containing monomer; and a polymerization unit of an acrylamide-based monomer.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: August 15, 2023
    Inventors: Jae Sung Hong, Dong Hoon Lim, Ju Yong Seo, Jun Man Choi, Woo Yeon Kim, Ho Kyung Song, Jang Soon Kim, Sle Lee, Kwang Su Seo
  • Patent number: 11697749
    Abstract: A multilayer adhesive tape is provided, including: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer sequentially. At least one of the first outer adhesive layer and the second outer adhesive layer includes a cured product of an outer adhesive composition including a high molecular weight prepolymer having a weight average molecular weight of 100,000 g/mol or more and 1,500,000 g/mol or less and a low molecular weight prepolymer having a weight average molecular weight of 1,000 g/mol or more and 80,000 g/mol or less.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: July 11, 2023
    Inventors: Sle Lee, Ho Kyung Song, Jae Sung Hong, Jun Man Choi, Jang Soon Kim
  • Patent number: 11577497
    Abstract: A method for preparing a thermoplastic polyurethane film having a large thickness and excellent durability, and a thermoplastic polyurethane film prepared thereby are provided.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: February 14, 2023
    Inventors: Sang Yool Lee, Joo Hee Hong, Se Jung Park, Sang Hwan Kim, Jang Soon Kim
  • Patent number: 11549036
    Abstract: A multilayer adhesive tape in which an interface separation between layers does not occur even at in extremely low temperature atmosphere is provided. The multilayer adhesive tape sequentially includes: a first outer adhesive layer; an intermediate adhesive layer; and a second outer adhesive layer, in which attaching force among the first outer adhesive layer, the intermediate adhesive layer, and the second outer adhesive layer is maintained after the multilayer adhesive tape is treated in liquefied nitrogen for 15 seconds.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: January 10, 2023
    Inventors: Hokyung Song, Dong Hoon Lim, Ju Yong Seo, Jun Man Choi, Woo Yeon Kim, Jae Sung Hong, Jang Soon Kim, Sle Lee, Kwang Su Seo
  • Patent number: 11512152
    Abstract: A method of preparing an acrylic adhesive, in which the durability of an adhesive film may be improved through additional photocuring and the residual components according to solution photopolymerization are efficiently removed, and an adhesive film prepared therefrom.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: November 29, 2022
    Inventors: Jun Man Choi, Sang Hwan Kim, Jang Soon Kim, Kwang Su Seo, Won Gu Choi, Chi Gwan An
  • Patent number: 11453803
    Abstract: Disclosed is a semi-hardened pressure sensitive adhesive film to be used in the semi-hardened state and having excellent printing step absorption properties. The adhesive film according to the present invention contains a radial polymer composition and a cationic polymer composition, and the radial polymer composition is primarily cross-linked to maintain the semi-hardened state. When applied onto a substrate through a printing step, the present invention has excellent step absorption properties and adhesion properties and excellent durability even under high-temperature and high-humidity conditions.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: September 27, 2022
    Inventors: Min-Seok Song, Chan-Oh Yoon, Eun-Kyung Park, Bu-Gi Jung, Jang-Soon Kim
  • Patent number: 11427658
    Abstract: A method for manufacturing a low molecular weight acrylic resin, and more particularly, to a method for manufacturing a low molecular weight acrylic resin having a high conversion rate and a low poly dispersion index includes maintaining the temperature of a reacting part with a screw stirrer at a specific temperature during a continuous polymerization of a solvent-free acrylic composition in a continuous flow reactor having the reacting part.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: August 30, 2022
    Inventors: Woo Yeon Kim, Jun Man Choi, Jang Soon Kim, Kwang Su Seo
  • Patent number: 11427736
    Abstract: Provided is a substrate-free transfer tape including: a release liner including a heavy peel surface and a light peel surface; and a transfer film layer provided on the heavy peel surface, in which release peel force between the heavy peel surface and the transfer film layer is from 10 g/in to 70 g/in or less at the time of peeling the transfer film layer at a rate of 3 m/min.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: August 30, 2022
    Inventors: Ji Hye Kim, Ki Seung Seo, Jun Hyoung Park, Jang Soon Kim, Kyung Jun Yoon
  • Patent number: 11384265
    Abstract: The present application relates to a photocurable solventless pressure-sensitive adhesive composition, a pressure-sensitive adhesive polarizing plate and a display device. According to the present application, a pressure-sensitive adhesive composition, a polarizing plate and a liquid crystal device, which have excellent durability and antistatic abilities, can be provided.
    Type: Grant
    Filed: September 13, 2018
    Date of Patent: July 12, 2022
    Assignee: SHANJIN OPTOELECTRONICS (SUZHOU) CO., LTD.
    Inventors: Seung Ju Noh, Ha Song Yun, Woo Yeon Kim, Hyun Hee Son, Jang Soon Kim, Kwang Su Seo
  • Patent number: 11339288
    Abstract: A photocurable composition is provided. The photocurable composition includes: a urethane acrylamide oligomer derived from a first urethane prepolymer having an isocyanate end group and a polar group-containing acrylamide; a urethane acrylate oligomer derived from a second urethane prepolymer having an isocyanate end group and a polar group-containing (meth)acrylate; and an amide group-containing acrylic polymer derived from acrylamide and a polar group-containing (meth)acrylate.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: May 24, 2022
    Inventors: Sang Hwan Kim, Sle Lee, Jang Soon Kim, Kwang Su Seo
  • Patent number: 11299624
    Abstract: A thermoplastic polyurethane film including a cured product of a polyurethane resin composition is provided. The polyurethane resin composition includes a polyurethane resin, a first isocyanate-based curing agent, and an organic solvent. The thermoplastic polyurethane film has a tensile strength break of 50 MPa to 80 MPa. A method for preparing the thermoplastic polyurethane film is also provided.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: April 12, 2022
    Inventors: Sang Yool Lee, Joo Hee Hong, Se Jung Park, Sang Hwan Kim, Jang Soon Kim
  • Patent number: 11261353
    Abstract: The present invention relates to a rubber-based adhesive composition and a rubber-based adhesive using the same, the composition including: a rubber-based resin; and a rosin-based resin having at least one hydrophilic group.
    Type: Grant
    Filed: January 3, 2020
    Date of Patent: March 1, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Seung-Won Lee, Eun-Kyung Park, Won-Gu Choi, Jang-Soon Kim, Sang-Hwan Kim, Tae-Yi Choi
  • Patent number: 11194426
    Abstract: A polymer foam adhesive tape including: a substrate film; a polymer foam layer provided on one surface of the substrate film; a first adhesive layer provided on the polymer foam layer; and a second adhesive layer provided on the other surface of the substrate film, in which the polymer foam adhesive tape has a minimum compression load of 30 g to 300 g, a compression rate of the polymer foam adhesive tape is increased in proportion to a linear function according to an increase in pressure when pressure, which is equal to or more than the minimum compression load, is applied, and a thickness recovery rate of the polymer foam adhesive tape after pressure is removed is increased in proportion to a linear function as time passes.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: December 7, 2021
    Inventors: Woo Joo Han, Min Kyeong Pyo, Hong Jun Choi, Jang Soon Kim, Kyung Jun Yoon
  • Patent number: 11161929
    Abstract: A thermoplastic polyurethane film including a cured product of a polyurethane resin composition is provided. The polyurethane resin composition includes a polyurethane resin, a first isocyanate-based curing agent, and an organic solvent. The thermoplastic polyurethane film has a tensile strength of 0.2 MPa to 1.5 MPa at an initial elongation of 5% to 10%. A method for preparing the thermoplastic polyurethane film is also provided.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: November 2, 2021
    Inventors: Sang Yool Lee, Joo Hee Hong, Se Jung Park, Sang Hwan Kim, Jang Soon Kim