Patents by Inventor Da Won Chae

Da Won Chae 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 5-acetoxymethylfurfural using alkylammonium acetate
    Patent number: 9388150
    Abstract: The present invention relates to a method for preparing 5-acetoxymethylfurfural, comprising a step of synthesizing 5-acetoxymethylfurfural by reacting 5-halomethyl furfural with alkylammonium acetate. The present invention can provide a method for preparing 5-acetoxymethylfurfural which is economic and has high reaction efficiency even without using an additional base.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: July 12, 2016
    Assignees: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY, SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Baek Jin Kim, Jin Ku Cho, Sangyong Kim, Do Hoon Lee, Young Gyu Kim, Eun-Sil Kang, Yeon-Woo Hong, Da Won Chae
  • NOVEL METHOD FOR PREPARING 5-ACETOXYMETHYLFURFURAL USING ALKYLAMMONIUM ACETATE
    Publication number: 20150051413
    Abstract: The present invention relates to a method for preparing 5-acetoxymethylfurfural, comprising a step of synthesizing 5-acetoxymethylfurfural by reacting 5-halomethyl furfural with alkylammonium acetate. The present invention can provide a method for preparing 5-acetoxymethylfurfural which is economic and has high reaction efficiency even without using an additional base.
    Type: Application
    Filed: March 15, 2013
    Publication date: February 19, 2015
    Inventors: Baek Jin Kim, Jin Ku Cho, Sangyong Kim, Do Hoon Lee, Young Gyu Kim, Eun-Sil Kang, Yeon-Woo Hong, Da Won Chae
  • Method for preparing a furfuranol-based compound and 2-furancarboxylic acid-based compound using an ionic liquid as a solvent
    Patent number: 8889891
    Abstract: This invention relates to a method of, in an eco-friendly manner, preparing a furfuranol-based compound and a 2-furancarboxylic acid-based compound using an ionic liquid as a reaction solvent, which includes reacting a furfural-based compound with a hydroxide of an alkali metal or an alkaline earth metal using an ionic liquid as the solvent, thus obtaining a furfuranol-based compound and a 2-furancarboxylic acid-based compound, and in which water is not used as the reaction solvent, thus preventing the generation of reaction wastewater, and the ionic liquid used as the solvent can be easily recovered and reused.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: November 18, 2014
    Assignees: Korea Institute of Industrial Technology, Seoul National University R&DB Foundation
    Inventors: Baek Jin Kim, Jin Ku Cho, Sangyong Kim, Young Gyu Kim, Eun-Sil Kang, Da Won Chae
  • METHOD FOR PREPARING A FURFURANOL-BASED COMPOUND AND 2-FURANCARBOXYLIC ACID-BASED COMPOUND USING AN IONIC LIQUID AS A SOLVENT
    Publication number: 20130345446
    Abstract: This invention relates to a method of, in an eco-friendly manner, preparing a furfuranol-based compound and a 2-furancarboxylic acid-based compound using an ionic liquid as a reaction solvent, which includes reacting a furfural-based compound with a hydroxide of an alkali metal or an alkaline earth metal using an ionic liquid as the solvent, thus obtaining a furfuranol-based compound and a 2-furancarboxylic acid-based compound, and in which water is not used as the reaction solvent, thus preventing the generation of reaction wastewater, and the ionic liquid used as the solvent can be easily recovered and reused.
    Type: Application
    Filed: March 19, 2012
    Publication date: December 26, 2013
    Applicants: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION, KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Baek Jin Kim, Jin Ku Cho, Sangyong Kim, Young Gyu Kim, Eun-Sil Kang, Da Won Chae