Patents by Inventor Eunkyoung BYUN

Eunkyoung BYUN 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).

  • Composition for polyamide interfacial polymerization, and method for manufacturing water treatment separation membrane by using same
    Patent number: 11992812
    Abstract: Provided is a composition for interfacially polymerizing polyamide including an amine compound and a chain-type-structured additive containing one or more amino groups and two or more hydroxyl groups, and a method for manufacturing a water treatment separation membrane, and a water treatment separation membrane using the same.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: May 28, 2024
    Assignee: LG Chem, Ltd.
    Inventors: Lakwon Choi, Youngju Lee, Eunkyoung Byun, Chong Kyu Shin
  • Composition for interfacial polymerization of polyamide and manufacturing method for water treatment separation membrane using same
    Patent number: 11718712
    Abstract: Provided is a composition for interfacial polymerizing polyamide including an amine compound; and one or more types of compounds selected from among a purine-based compound and a pyrimidine-based compound of Chemical Formula 1: wherein, in Chemical Formula 1: X is N or NH; Y is O or OH; Z is O, OH or NH2; R1 and R2 are each hydrogen or a substituted or unsubstituted alkyl group; and is a single bond or a double bond, and a method for manufacturing a water-treatment membrane and a water-treatment membrane using the same.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: August 8, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Eunkyoung Byun, Youngju Lee, Lakwon Choi, Chong Kyu Shin
  • Water treatment separation membrane, water treatment module comprising same, and manufacturing method therefor
    Patent number: 11517861
    Abstract: Provided is a water-treatment membrane including a porous support; and a polyamide active layer including chlorine on a surface thereof, wherein CIE L*a*b* color coordinate values after storing for 30 days or longer at 25° C. to 80° C. satisfy Equation 1 to Equation 3: 91<L*<97??<Equation 1> ?1.5<a*<1.5??<Equation 2> ?1.5<b*<8??<Equation 3> of the present disclosure, a water-treatment module including the same, and a method for manufacturing the same.
    Type: Grant
    Filed: July 9, 2019
    Date of Patent: December 6, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Eunkyoung Byun, Youngju Lee, Hyungjoon Jeon, Young Jun Shin, Chong Kyu Shin
  • Water treatment membrane and method for manufacturing same
    Patent number: 11173455
    Abstract: Provided is a water treatment membrane including: a porous support; and a polyamide active layer provided on the porous support, in which the polyamide active layer includes one or more units selected from among a unit of Chemical Formula 1: a unit of Chemical Formula 2; a unit of Chemical Formula 3; and a unit of Chemical Formula 4; and a manufacturing method thereof.
    Type: Grant
    Filed: April 18, 2018
    Date of Patent: November 16, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Eunkyoung Byun, Chong Kyu Shin, Youngju Lee, Hyungjoon Jeon
  • COMPOSITION FOR POLYAMIDE INTERFACIAL POLYMERIZATION, AND METHOD FOR MANUFACTURING WATER TREATMENT SEPARATION MEMBRANE BY USING SAME
    Publication number: 20210001283
    Abstract: Provided is a composition for interfacially polymerizing polyamide including an amine compound and a chain-type-structured additive containing one or more amino groups and two or more hydroxyl groups, and a method for manufacturing a water treatment separation membrane, and a water treatment separation membrane using the same.
    Type: Application
    Filed: June 14, 2019
    Publication date: January 7, 2021
    Inventors: Lakwon CHOI, Youngju LEE, Eunkyoung BYUN, Chong Kyu SHIN
  • COMPOSITION FOR INTERFACIAL POLYMERIZATION OF POLYAMIDE AND MANUFACTURING METHOD FOR WATER TREATMENT SEPARATION MEMBRANE USING SAME
    Publication number: 20200332059
    Abstract: Provided is a composition for interfacial polymerizing polyamide including an amine compound; and one or more types of compounds selected from among a purine-based compound and a pyrimidine-based compound of Chemical Formula 1: wherein, in Chemical Formula 1: X is N or NH; Y is O or OH; Z is O, OH or NH2; R1 and R2 are each hydrogen or a substituted or unsubstituted alkyl group; and is a single bond or a double bond, and a method for manufacturing a water-treatment membrane and a water-treatment membrane using the same.
    Type: Application
    Filed: June 20, 2019
    Publication date: October 22, 2020
    Inventors: Eunkyoung BYUN, Youngju LEE, Lakwon CHOI, Chong Kyu SHIN
  • WATER TREATMENT SEPARATION MEMBRANE, WATER TREATMENT MODULE COMPRISING SAME, AND MANUFACTURING METHOD THEREFOR
    Publication number: 20200254397
    Abstract: Provided is a water-treatment membrane including a porous support; and a polyamide active layer including chlorine on a surface thereof, wherein CIE L*a*b* color coordinate values after storing for 30 days or longer at 25° C. to 80° C. satisfy Equation 1 to Equation 3: 91<L*<97 ??<Equation 1> ?1.5<a*<1.5 ??<Equation 2> ?1.5<b*<8 ??<Equation 3> of the present disclosure, a water-treatment module including the same, and a method for manufacturing the same.
    Type: Application
    Filed: July 9, 2019
    Publication date: August 13, 2020
    Inventors: Eunkyoung BYUN, Youngju LEE, Hyungjoon JEON, Young Jun SHIN, Chong Kyu SHIN
  • WATER TREATMENT MEMBRANE AND METHOD FOR MANUFACTURING SAME
    Publication number: 20200009513
    Abstract: Provided is a water treatment membrane including: a porous support; and a polyamide active layer provided on the porous support, in which the polyamide active layer includes one or more units selected from among a unit of Chemical Formula 1: a unit of Chemical Formula 2; a unit of Chemical Formula 3; and a unit of Chemical Formula 4; and a manufacturing method thereof.
    Type: Application
    Filed: April 18, 2018
    Publication date: January 9, 2020
    Inventors: Eunkyoung BYUN, Chong Kyu SHIN, Youngju LEE, Hyungjoon JEON