Patents by Inventor Sungwoon HEO

Sungwoon HEO 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).

  • Process for preparation of block copolymer
    Patent number: 11840604
    Abstract: Provided is a method for preparing a block copolymer, the method comprising subjecting a lactide monomer to a ring-opening polymerization in the presence of a poly(3-hydroxypropionate) initiator to prepare a polylactide-poly(3-hydroxypropionate)block copolymer.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: December 12, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jung Yun Choi, Sungwoon Heo, Chul Woong Kim
  • Triblock copolymer and process for preparation thereof
    Patent number: 11827745
    Abstract: Provided is a triblock copolymer comprising a poly(3-hydroxypropionate) block, and polylactide blocks bonded to both ends of the poly(3-hydroxypropionate) block. Also provided is a method for preparing a triblock copolymer by ring-opening polymerization of lactide monomers in the presence of a poly(3-hydroxypropionate) initiator having hydroxy groups at both ends.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: November 28, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Jung Yun Choi, Sungwoon Heo, Chul Woong Kim
  • BIOPOLYMER COMPOSITION, PREPARATION METHOD FOR SAME AND BIOPLASTIC USING SAME
    Publication number: 20220282030
    Abstract: Provided is a biopolymer composition, a preparation method for the same, and a bioplastic using the same, the biopolymer composition comprising at least 83.5 weight% of a copolymer resin of lactic acid (LA) and 3- hydroxypropionate (3HP), an antioxidant, and a lubricant, and the composition having an elongation percentage of at least 90% but not greater than 500%.
    Type: Application
    Filed: September 16, 2020
    Publication date: September 8, 2022
    Inventors: Banseok CHOI, Jung Yun CHOI, Chul Woong KIM, Sungwoon HEO, Eungwon KIM, Donggyun KANG
  • METHOD FOR PREPARING BLOCK COPOLYMER
    Publication number: 20220267815
    Abstract: Provided is a method for preparing a block copolymer including a step of subjecting a lactide monomer to ring-opening polymerization in the presence of a biosynthesized poly(3-hydroxypropionate) initiator to prepare a polylactide-poly(3-hydroxypropionate) block copolymer.
    Type: Application
    Filed: September 11, 2020
    Publication date: August 25, 2022
    Inventors: Jung Yun CHOI, Chul Woong KIM, Sungwoon HEO, Donggyun KANG, Jae Hyung KIM, Suhyun CHO
  • TRIBLOCK COPOLYMER AND PROCESS FOR PREPARATION THEREOF
    Publication number: 20210340314
    Abstract: Provided is a triblock copolymer comprising a poly(3-hydroxypropionate) block, and polylactide blocks bonded to both ends of the poly(3-hydroxypropionate) block. Also provided is a method for preparing a triblock copolymer by ring-opening polymerization of lactide monomers in the presence of a poly(3-hydroxypropionate) initiator having hydroxy groups at both ends.
    Type: Application
    Filed: March 17, 2020
    Publication date: November 4, 2021
    Inventors: Jung Yun CHOI, Sungwoon HEO, Chul Woong KIM
  • PROCESS FOR PREPARATION OF BLOCK COPOLYMER
    Publication number: 20210309800
    Abstract: Provided is a method for preparing a block copolymer, the method comprising subjecting a lactide monomer to a ring-opening polymerization in the presence of a poly(3-hydroxypropionate) initiator to prepare a polylactide-poly(3-hydroxypropionate)block copolymer.
    Type: Application
    Filed: March 17, 2020
    Publication date: October 7, 2021
    Inventors: Jung Yun CHOI, Sungwoon HEO, Chul Woong KIM