Patents by Inventor Shin Youp Lee

Shin Youp 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).

  • Furan monomer having bifunctional hydroxymethyl group and preparation method therefor
    Patent number: 11578045
    Abstract: The present disclosure relates to a method of preparing a furan monomer having a bifunctional hydroxymethyl group (2, 5-bis(hydroxymethyl) furan (BHMF)). The method includes converting furfuryl alcohol to a low-molecular weight furan mixture extracting and purifying the furan monomer having a bifunctional hydroxymethyl group from the low-molecular weight furan mixture.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: February 14, 2023
    Assignee: KUKDO CHEMICAL CO., LTD
    Inventors: Shin Youp Lee, Chan Ho Park
  • Furfuryl alcohol-derived bifunctional furan epoxy and method for producing same
    Patent number: 11566099
    Abstract: A method for producing bifunctional furan epoxy (BFFE) according to various embodiments of the present disclosure uses a bio-based monofunctional furan raw material to produce BFFE, and may include synthesizing BFFE raw material by reacting furfuryl alcohol, formaldehyde, and an acid-base mixture catalyst, and polymerizing BFFE by adding epichlorohydrin (ECH), a base catalyst, and a solvent to the BFFE raw material.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: January 31, 2023
    Assignee: KUK DO CHEMICAL CO., LTD
    Inventors: Shin Youp Lee, Hye Seung Lee
  • FURFURYL ALCOHOL-DERIVED BIFUNCTIONAL FURAN EPOXY AND METHOD FOR PRODUCING SAME
    Publication number: 20210355267
    Abstract: A method for producing bifunctional furan epoxy (BFFE) according to various embodiments of the present disclosure uses a bio-based monofunctional furan raw material to produce BFFE, and may include synthesizing BFFE raw material by reacting furfuryl alcohol, formaldehyde, and an acid-base mixture catalyst, and polymerizing BFFE by adding epichlorohydrin (ECH), a base catalyst, and a solvent to the BFFE raw material.
    Type: Application
    Filed: May 17, 2019
    Publication date: November 18, 2021
    Applicant: KUK DO CHEMICAL CO., LTD.
    Inventors: SHIN YOUP LEE, HYE SEUNG LEE
  • FURAN MONOMER HAVING BIFUNCTIONAL HYDROXYMETHYL GROUP AND PREPARATION METHOD THEREFOR
    Publication number: 20210139443
    Abstract: The present disclosure relates to a method of preparing a furan monomer having a bifunctional hydroxymethyl group (2, 5-bis(hydroxymethyl) furan (BHMF)). The method includes converting furfuryl alcohol to a low-molecular weight furan mixture extracting and purifying the furan monomer having a bifunctional hydroxymethyl group from the low-molecular weight furan mixture.
    Type: Application
    Filed: January 18, 2018
    Publication date: May 13, 2021
    Inventors: Shin Youp Lee, Chan Ho Park