Patents by Inventor Paul Joo

Paul Joo 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 producing 5-hydroxymethyl-2-furfural or alkyl ether derivatives thereof using an ion exchange resin in the presence of an organic solvent
    Patent number: 9206147
    Abstract: The present invention relates to a method for producing a furan-based compound using an ion exchange resin in the presence of an organic solvent. In the method for producing a furan-based compound according to the present invention, a furan-based compound is made from an aldose-type hexose compound in the presence of an organic solvent by using an anion exchange resin and a cation exchange resin. Thus, the aldose-type hexose compound obtained from biomass by simultaneously or consecutively using the anion/cation exchange resins as catalysts can be made into 5-hydroxymethyl-2-furfural (HMF) or alkyl ether derivatives thereof such as 5-alkoxymethyl-2-furfural (AMF) without using an expensive reagent. Also, since the selection of an organic solvent is not limitative and a heterogeneous catalyst can be used, separation and purification is easy and chemically stable AMF can be directly obtained.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: December 8, 2015
    Assignee: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Jin Ku Cho, Sang Yong Kim, Jae Hoon Cho, Bo Ra Kim, Paul Joo
  • METHOD FOR PRODUCING 5-HYDROXYMETHYL-2-FURFURAL OR ALKYL ETHER DERIVATIVES THEREOF USING AN ION EXCHANGE RESIN IN THE PRESENCE OF AN ORGANIC SOLVENT
    Publication number: 20140235881
    Abstract: The present invention relates to a method for producing a furan-based compound using an ion exchange resin in the presence of an organic solvent. In the method for producing a furan-based compound according to the present invention, a furan-based compound is made from an aldose-type hexose compound in the presence of an organic solvent by using an anion exchange resin and a cation exchange resin. Thus, the aldose-type hexose compound obtained from biomass by simultaneously or consecutively using the anion/cation exchange resins as catalysts can be made into 5-hydroxymethyl-2-furfural (HMF) or alkyl ether derivatives thereof such as 5-alkoxymethyl-2-furfural (AMF) without using an expensive reagent. Also, since the selection of an organic solvent is not limitative and a heterogeneous catalyst can be used, separation and purification is easy and chemically stable AMF can be directly obtained.
    Type: Application
    Filed: July 9, 2012
    Publication date: August 21, 2014
    Applicant: KOREA INSTITUTE OF INDUSTRIAL TECHNOLOGY
    Inventors: Jin Ku Cho, Sang Yong Kim, Jae Hoon Cho, Bo Ra Kim, Paul Joo