Patents by Inventor Ju Byung CHAI

Ju Byung CHAI 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).

  • Rubber polymer and method of preparing the same
    Patent number: 9771470
    Abstract: Disclosed are a rubber latex and a method of preparing the same. The rubber latex comprises a diene based rubber polymer core and a multilayer shell structure wherein an aromatic or non-aromatic polymer having an unsaturated double bond and a diene based polymer are alternatively laminated on the core. When a rubber reinforced graft copolymer is prepared through emulsion polymerization of the rubber latex, a product having excellent impact resistance and colorability may be provided.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: September 26, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Ju Byung Chai, Yu Sung Jung, Eun Seon Park, Tae Young Jeon, Jin Ho Lee
  • RUBBER POLYMER AND METHOD OF PREPARING THE SAME
    Publication number: 20160053099
    Abstract: Disclosed are a rubber latex and a method of preparing the same. The rubber latex comprises a diene based rubber polymer core and a multilayer shell structure wherein an aromatic or non-aromatic polymer having an unsaturated double bond and a diene based polymer are alternatively laminated on the core. When a rubber reinforced graft copolymer is prepared through emulsion polymerization of the rubber latex, a product having excellent impact resistance and colorability may be provided.
    Type: Application
    Filed: April 30, 2014
    Publication date: February 25, 2016
    Inventors: Ju Byung CHAI, Yu Sung JUNG, Eun Seon PARK, Tae Young JEON, Jin Ho LEE