Patents by Inventor Hyuin RYU

Hyuin RYU 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 interfacial polymerization of polyamide and method for manufacturing reverse osmosis membrane using same
    Patent number: 10632425
    Abstract: The present specification provides a composition for interfacial polymerization of polyamide including at least one of an amine compound and an acyl halide compound; a surfactant; and a compound represented by Chemical Formula 1, and a method for preparing a reverse osmosis membrane using the same.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: April 28, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Hyungbae Gil, Byungho Jeon, Hyuin Ryu, Yeji Kim, Chong Kyu Shin
  • Method for manufacturing polyamide-based water-treatment separator having excellent permeation flux characteristics and water-treatment separator manufactured by same
    Patent number: 10479864
    Abstract: The present invention relates to a method for manufacturing a water treatment separation membrane, the method including: forming an aqueous solution layer including an amine compound on a porous support; and bringing an organic solution including an acyl halide compound into contact with on the aqueous solution layer to form a polyamide active layer, in which the organic solution includes a non-polar solvent and an amphiphilic solvent having a boiling point of 120° C. or more, thereby improving a permeation flux, and a water treatment separation membrane manufactured by the manufacturing method.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: November 19, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Byungho Jeon, Hyuin Ryu, Keun Won Song, Chong Kyu Shin
  • COMPOSITION FOR INTERFACIAL POLYMERIZATION OF POLYAMIDE AND METHOD FOR MANUFACTURING REVERSE OSMOSIS MEMBRANE USING SAME
    Publication number: 20180229189
    Abstract: The present specification provides a composition for interfacial polymerization of polyamide including at least one of an amine compound and an acyl halide compound; a surfactant; and a compound represented by Chemical Formula 1, and a method for preparing a reverse osmosis membrane using the same.
    Type: Application
    Filed: March 31, 2017
    Publication date: August 16, 2018
    Inventors: Hyungbae GIL, Byungho JEON, Hyuin RYU, Yeji KIM, Chong Kyu SHIN
  • METHOD FOR MANUFACTURING POLYAMIDE-BASED WATER-TREATMENT SEPARATOR HAVING EXCELLENT PERMEATION FLUX CHARACTERISTICS AND WATER-TREATMENT SEPARATOR MANUFACTURED BY SAME
    Publication number: 20170291990
    Abstract: The present invention relates to a method for manufacturing a water treatment separation membrane, the method including: forming an aqueous solution layer including an amine compound on a porous support; and bringing an organic solution including an acyl halide compound into contact with on the aqueous solution layer to form a polyamide active layer, in which the organic solution includes a non-polar solvent and an amphiphilic solvent having a boiling point of 120° C. or more, thereby improving a permeation flux, and a water treatment separation membrane manufactured by the manufacturing method.
    Type: Application
    Filed: September 8, 2015
    Publication date: October 12, 2017
    Inventors: Byungho JEON, Hyuin RYU, Keun SONG, Chong Kyu SHIN