Patents by Inventor Jeong Weon HAN

Jeong Weon HAN 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).

  • Method for preparing biodegradable latex composition for dip forming
    Patent number: 11987704
    Abstract: Provided is a method for preparing a latex composition for dip forming, the method including: (a) preparing a monomer mixture including a conjugated diene-based monomer, an ethylenically unsaturated nitrile monomer and an ethylenically unsaturated acid monomer; (b) introducing starch, an emulsifier and an inorganic solvent into the monomer mixture; and (c) preparing a copolymer latex by introducing a polymerization initiator, wherein the copolymer includes the starch in a main chain thereof.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: May 21, 2024
    Assignee: Korea Kumho Petrochemical Co., Ltd.
    Inventors: Eunsoo Kang, Jeong Weon Han, Sung Hun Choung
  • Method for preparing latex composition for dip-forming
    Patent number: 11970617
    Abstract: An exemplary embodiment provides a method for preparing a latex composition for dip forming, the method including: (a) preparing a monomer mixture including a conjugated diene-based monomer, an ethylenically unsaturated nitrile monomer and an ethylenically unsaturated acid monomer; (b) introducing an additive including an inorganic solvent, an emulsifier and starch into the monomer mixture; and (c) preparing a copolymer latex by polymerizing the monomer mixture, wherein a content of the starch is 0.1 to 4.9 parts by weight with respect to 100 parts by weight of the monomer mixture.
    Type: Grant
    Filed: May 27, 2022
    Date of Patent: April 30, 2024
    Assignee: KOREA KUMHO PETROCHEMICAL CO., LTD.
    Inventors: Sung Hun Choung, Jeong Weon Han, Eunsoo Kang
  • METHOD FOR PREPARING BIODEGRADABLE LATEX COMPOSITION FOR DIP FORMING
    Publication number: 20230054173
    Abstract: Provided is a method for preparing a latex composition for dip forming, the method including: (a) preparing a monomer mixture including a conjugated diene-based monomer, an ethylenically unsaturated nitrile monomer and an ethylenically unsaturated acid monomer; (b) introducing starch, an emulsifier and an inorganic solvent into the monomer mixture; and (c) preparing a copolymer latex by introducing a polymerization initiator, wherein the copolymer includes the starch in a main chain thereof.
    Type: Application
    Filed: June 28, 2022
    Publication date: February 23, 2023
    Inventors: Eunsoo KANG, Jeong Weon HAN, Sung Hun CHOUNG
  • METHOD FOR PREPARING LATEX COMPOSITION FOR DIP-FORMING
    Publication number: 20220380580
    Abstract: An exemplary embodiment provides a method for preparing a latex composition for dip forming, the method including: (a) preparing a monomer mixture including a conjugated diene-based monomer, an ethylenically unsaturated nitrile monomer and an ethylenically unsaturated acid monomer; (b) introducing an additive including an inorganic solvent, an emulsifier and starch into the monomer mixture; and (c) preparing a copolymer latex by polymerizing the monomer mixture, wherein a content of the starch is 0.1 to 4.9 parts by weight with respect to 100 parts by weight of the monomer mixture.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 1, 2022
    Inventors: Sung Hun CHOUNG, Jeong Weon HAN, Eunsoo KANG