Patents by Inventor Kwang-Seung Park

Kwang-Seung Park 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: 11975977
    Abstract: The present application relates to a method for producing a silica film, which includes a step of contacting a silica precursor layer formed of a silica precursor composition having a pH of 5 or less with a Lewis base, where the silica precursor composition includes a silica precursor formed from a silane compound and an acid catalyst. The present application can provide a method capable of forming a silica film having excellent resistance to a vertical load and a tangential load without going through expensive equipment or a high temperature process.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: May 7, 2024
    Assignee: LG Chem, Ltd.
    Inventor: Kwang Seung Park
  • Publication number: 20220332976
    Abstract: The present application relates to a film. The present application can provide a film having excellent optical characteristics such as transparency or haze, mechanical properties such as hardness, and flexibility, wherein the shape of the surface is controlled to be suitable for various uses, and the controlled surface shape has excellent durability.
    Type: Application
    Filed: December 18, 2020
    Publication date: October 20, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Hyun Taek OH, Kwang Seung PARK, Chang Hoon SIN
  • Publication number: 20210380463
    Abstract: The present application relates to a silica glass film. The present application can provide, as a film having a silica network as a main component, a silica glass film capable of solving the disadvantages of the glass material, while having at least one or more advantages of the glass material. Such a silica glass film of the present application can be easily formed through a simple low temperature process without using expensive equipment.
    Type: Application
    Filed: November 19, 2019
    Publication date: December 9, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Kwang Seung PARK, Hyun Taek OH, Chang Hoon SIN, Moon Soo PARK
  • Publication number: 20210380772
    Abstract: The present application relates to a glass-like film. The present application can provide a glass-like film capable of solving the disadvantages of the glass material, while having at least one or more advantages of the glass material. Such a glass-like film of the present application can be easily formed through a simple low temperature process without using expensive equipment.
    Type: Application
    Filed: November 19, 2019
    Publication date: December 9, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Chang Hoon SIN, Kwang Seung PARK, Hyun Taek OH, Moon Soo PARK
  • Publication number: 20210309883
    Abstract: The present application relates to an optical laminate. The present application can provide an optical laminate having excellent surface properties such as scratch resistance or hardness, which comprises, for example, a cover layer capable of replacing a so-called cover glass.
    Type: Application
    Filed: November 19, 2019
    Publication date: October 7, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Kwang Seung PARK, Chang Hoon SIN, Hyun Taek OH, Moon Soo PARK
  • Publication number: 20210178426
    Abstract: Provided is a method for preparing a silica layer, comprising bringing to gelation a precursor layer formed from a precursor composition comprising a silica precursor an acid catalyst and a surfactant.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 17, 2021
    Inventors: Hyun Taek OH, Chang Hoon SIN, Kwang Seung PARK, Moon Soo PARK
  • Publication number: 20200172404
    Abstract: The present application relates to a method for producing a silica film, which includes a step of contacting a silica precursor layer formed of a silica precursor composition having a pH of 5 or less with a Lewis base, where the silica precursor composition includes a silica precursor formed from a silane compound and an acid catalyst. The present application can provide a method capable of forming a silica film having excellent resistance to a vertical load and a tangential load without going through expensive equipment or a high temperature process.
    Type: Application
    Filed: August 24, 2018
    Publication date: June 4, 2020
    Inventor: Kwang Seung PARK
  • Patent number: 10585212
    Abstract: The present invention relates to a polarizing plate including: a polarizer and a protective layer formed on at least one surface of the polarizer, in which the protective layer is a cured product of a radical curable composition including: (A) a first compound represented by [Formula 1]; (B) a second compound represented by Formula B; and (C) a radical initiator, and an image display device including the same.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: March 10, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Mi Rin Lee, Kwang Seung Park, Eunsoo Huh, Jun Wuk Park, Sung Hyun Jeon
  • Patent number: 10228491
    Abstract: The present invention relates to a radical-curable adhesive composition including a radical-polymerizable first compound that includes at least two hydroxyl groups in the molecule, and having hydroxyl value of 500 mg KOH/g or greater, and a polarizing plate and an optical member including the radical-curable adhesive composition.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: March 12, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Eun-Soo Huh, Kwang-Seung Park, Mi-Rin Lee, Sung-Hyun Kim, Jun-Wuk Park
  • Patent number: 10214598
    Abstract: The present specification relates to a (meth)acrylate compound, and a copolymer and a homopolymer including a repeating unit derived therefrom.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: February 26, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Kwang Seung Park, Mi Rin Lee, Jun Wuk Park, Eunsoo Huh, Sung Hyun Jeon
  • Patent number: 10156667
    Abstract: The present invention relates to a polarizing plate including a polarizer, and a protective layer formed on at least one surface of the polarizer, in which the protective layer is a cured product of (A) a first compound represented by the following [Formula 1]; (B) a radical curable second compound including at least one carboxyl group conjugated to an unsaturated double bond between carbons present at a side chain in a molecule thereof; and (C) a radical curable composition including a radical initiator, and a liquid crystal display device including the same.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: December 18, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Mi Rin Lee, Kwang Seung Park, Jun Wuk Park, Eun Soo Huh
  • Patent number: 10132976
    Abstract: The present invention relates to a polarizing plate including: a polarizer; a first protective layer formed on at least one surface of the polarizer; and a second protective layer formed on a surface opposite to a surface adjacent to a polarizer of the first protective layer, in which the first protective layer is a cured product of a radical curable composition, and the second protective layer is a cured product of a cationic curable composition, a manufacturing method thereof, and an image display device including the same.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: November 20, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Kwang-Seung Park, Hae-Sung Cho, Hyun-Hee Son, Kyun-Il Rah, Jun-Wuk Park, Eun-Soo Huh, Mi-Rin Lee, Sung-Hyun Jeon
  • Patent number: 10072183
    Abstract: The present invention relates to a radical-curable adhesive composition including a (A) radical-polymerizable compound that includes at least one hydrophilic functional group in the molecule in greater than 30 parts by weight and less than or equal to 93 parts by weight; a (B) multifunctional (meth)acryl-based compound in 5 to 40 parts by weight; a (C) phosphate compound that includes one or two (meth)acrylic groups in the molecule in 1 to 40 parts by weight; and a (D) radical initiator in 0.5 to 20 parts by weight, with respect to 100 parts by weight of the radical-curable adhesive composition, and a polarizing plate and an optical member including the radical-curable adhesive composition.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: September 11, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Eun-Soo Huh, Kwang-Seung Park, Mi-Rin Lee, Jun-Wuk Park
  • Patent number: 10029449
    Abstract: The present invention relates to a method for manufacturing a single-faced thin polarizing plate, including: supplying a process film to one surface of a polarizer having a thickness of 50 ?m or less; supplying a protection film to the other surface of the polarizer; forming an adhesive layer by supplying an adhesive composition between the polarizer and the protection film; pressing a laminate of the process film/the polarizer/the protection film by disposing a pair of pressing units on a surface of each of the process film and the protection film; and stripping the process film, in which stripping force between the polarizer and the process film is 1.0 N or less.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: July 24, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Hae-Sung Cho, Sung-Hyun Kim, Hyun-Hee Son, Dong-Kyun Ha, Kwang-Seung Park, Nam-Jeong Lee, Jun-Wuk Park, Tae-Jun Hwang
  • Patent number: 10011746
    Abstract: The present invention relates to a radical-curable adhesive composition including a first compound represented by [Chemical Formula I]; a radical-curable second compound including at least one carboxyl group conjugated with a carbon-carbon unsaturated double bond present in the side chain in the molecule; and a radical initiator, and a polarizing plate including the radical-curable adhesive composition.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: July 3, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Mi Rin Lee, Kwang Seung Park, Jun Wuk Park, Eunsoo Huh
  • Patent number: 10012772
    Abstract: The present invention relates to a polarizing plate including: a polarizer; and a protective layer formed on at least one surface of the polarizer, in which the protective layer is a cured product of a radical curable composition including: (A) a radical polymerizable compound including at least one hydrophilic functional group in a molecule thereof; (B) a multifunctional (meth)acrylic compound; (C) a phosphate compound including one or two (meth)acryl groups in a molecule thereof; and (D) a radical initiator, and an image display device including the same.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: July 3, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Eun-Soo Huh, Kwang-Seung Park, Mi-Rin Lee, Jun-Wuk Park
  • Patent number: 9971067
    Abstract: The present invention relates to a polarizing plate including: a polarizer; and a protective layer formed on at least one surface of the polarizer, in which the protective layer is a cured product of a radical curable composition including: (A) an acid anhydride-based compound having at least one unsaturated double bond between carbons; (B) a vinyl-based compound having at least one electron donor group; (C) a radical initiator; and (D) a cation generator, and an image display device including the same.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: May 15, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Kwang-Seung Park, Mi-Rin Lee, Jun-Wuk Park, Eun-Soo Huh
  • Patent number: 9969906
    Abstract: The present invention relates to a radical-curable adhesive composition including an acid anhydride-based compound having at least one carbon-carbon unsaturated double bond, a vinyl-based compound having at least one electron donor group, a radical initiator, and a cation generator, wherein the content of the acid anhydride-based compound and the vinyl-based compound is 0.8 to 1.0 by an equivalence ratio of mixing represented by the following Equation (1), and a polarizing plate and an optical member including the radical-curable adhesive composition: Equivalence Ratio of Mixing=M/N,??Equation(1): and in Equation (1), M is the number of carbon-carbon unsaturated double bonds capable of participating in polymerization in the molecule including an acid anhydride group included in the acid anhydride-based compound; and N is the number of carbon-carbon unsaturated double bonds capable of participating in polymerization in the molecule included in the vinyl-based compound.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: May 15, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Kwang-Seung Park, Mi-Rin Lee, Jun-Wuk Park, Eun-Soo Huh
  • Patent number: 9971066
    Abstract: The present disclosure relates to a polarizing plate including: a polarizer; and a protective layer formed on at least one surface of the polarizer, wherein the protective layer is formed of a composition for a polarizing plate protective layer, including a curable compound, a non-curable polymer, and a polymerization initiator, the curable compound being at least one selected from a group consisting of a compound including a functional group containing at least one of O, N and F atoms and having an ethylenically unsaturated bond and a ring-opening polymerizable compound, and the non-curable polymer including a functional group containing at least one of O, N and F atoms in a side chain thereof.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: May 15, 2018
    Assignee: LG Chem, Ltd
    Inventors: Kwang-Seung Park, Hae-Sung Cho, Hyun-Hee Son, Nam-Jeong Lee, Jun-Wuk Park, Eun-Soo Huh, Mi-Rin Lee, Sung-Hyun Jeon
  • Patent number: 9952362
    Abstract: The present specification relates to a polarizing plate and a display device comprising the same.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: April 24, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Mi Rin Lee, Kwang Seung Park, Eunsoo Huh, Jun Wuk Park, Sung Hyun Jeon