Patents by Inventor Cheol Han LEE

Cheol Han LEE 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).

  • Thermoplastic elastomer resin composition
    Patent number: 11453775
    Abstract: Disclosed are: a thermoplastic elastomer resin composition comprising a thermoplastic elastomer resin and, as a reactive additive, a compound containing one or more isocyanurate functional groups; a molded product comprising the same.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 27, 2022
    Assignee: SAMYANG CORPORATION
    Inventors: Jae-Kwan Kwon, Jin Yoo, Cheol-Han Lee, Yong-Chan Lim, Sang-Hyun Park
  • Thermoplastic polyether ester elastomer comprising anhydrosugar alcohol derivative and method for preparing same
    Patent number: 10995212
    Abstract: The present invention relates to a thermoplastic polyether ester elastomer (TPEE) having a hard segment and a soft segment and a method for preparing the same and, more specifically, to a thermoplastic polyether ester elastomer and a method for preparing the same, wherein a unit derived from an anhydrosugar alcohol derivative with improved reactivity derived from biomass is contained in the soft segment, and thus through the adjustment of the content of the anhydrosugar alcohol derivative, elastic characteristics and physical characteristics (for example, hardness, etc.), which are important characteristics of an elastomer, can be favorably maintained, the melting point variously required in the molding process of a final product can be easily controlled, a problem of depletion of, especially, petroleum resources as finite resources, can be solved, and environmental friendliness can be improved.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: May 4, 2021
    Assignee: SAMYANG CORPORATION
    Inventors: Min Sun Lee, Mi Ran Kim, Yun Ju Chang, Jae Kwan Kwon, Cheol Han Lee, Young Do Kwon
  • THERMOPLASTIC ELASTOMER RESIN COMPOSITION
    Publication number: 20210061991
    Abstract: Disclosed are: a thermoplastic elastomer resin composition comprising a thermoplastic elastomer resin and, as a reactive additive, a compound containing one or more isocyanurate functional groups; a molded product comprising the same.
    Type: Application
    Filed: December 27, 2018
    Publication date: March 4, 2021
    Applicant: SAMYANG CORPORATION
    Inventors: Jae-Kwan KWON, Jin YOO, Cheol-Han LEE, Yong-Chan LIM, Sang-Hyun PARK
  • THERMOPLASTIC POLYETHER ESTER ELASTOMER COMPRISING ANHYDROSUGAR ALCOHOL DERIVATIVE AND METHOD FOR PREPARING SAME
    Publication number: 20200071518
    Abstract: The present invention relates to a thermoplastic polyether ester elastomer (TPEE) having a hard segment and a soft segment and a method for preparing the same and, more specifically, to a thermoplastic polyether ester elastomer and a method for preparing the same, wherein a unit derived from an anhydrosugar alcohol derivative with improved reactivity derived from biomass is contained in the soft segment, and thus through the adjustment of the content of the anhydrosugar alcohol derivative, elastic characteristics and physical characteristics (for example, hardness, etc.), which are important characteristics of an elastomer, can be favorably maintained, the melting point variously required in the molding process of a final product can be easily controlled, a problem of depletion of, especially, petroleum resources as finite resources, can be solved, and environmental friendliness can be improved.
    Type: Application
    Filed: November 14, 2017
    Publication date: March 5, 2020
    Applicant: SAMYANG CORPORATION
    Inventors: Min Sun LEE, Mi Ran KIM, Yun Ju CHANG, Jae Kwan KWON, Cheol Han LEE, Young Do KWON