Patents by Inventor Hyung Hoon SIM

Hyung Hoon SIM 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 vinyl chloride-based resin
    Patent number: 9637580
    Abstract: Provided is a method of preparing a vinyl chloride-based resin that includes preparing slurry through suspension polymerization by mixing a monomer, an oil soluble initiator, a dispersant, and an additive including an emulsifier, a water-soluble initiator, or a combination thereof, wherein the monomer includes vinyl chloride, an unsaturated carboxylic acid-based compound, and an ethylenic unsaturated compound that is copolymerizable therewith, and the emulsifier includes an anionic emulsifier, a non-ionic emulsifier, or a combination thereof.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 2, 2017
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Jeong Hwan Ko, Paul Kang, Ji Won Kim, Hyung Hoon Sim
  • METHOD FOR PREPARING VINYL CHLORIDE-BASED RESIN
    Publication number: 20160376387
    Abstract: Provided is a method of preparing a vinyl chloride-based resin that includes preparing slurry through suspension polymerization by mixing a monomer, an oil soluble initiator, a dispersant, and an additive including an emulsifier, a water-soluble initiator, or a combination thereof, wherein the monomer includes vinyl chloride, an unsaturated carboxylic acid-based compound, and an ethylenic unsaturated compound that is copolymerizable therewith, and the emulsifier includes an anionic emulsifier, a non-ionic emulsifier, or a combination thereof.
    Type: Application
    Filed: August 29, 2014
    Publication date: December 29, 2016
    Inventors: Jeong Hwan KO, Paul KANG, Ji Won KIM, Hyung Hoon SIM