Patents by Inventor Jai Jun Kim

Jai Jun Kim 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).

  • Patent number: 6407264
    Abstract: The present invention relates to a method to prepare alkylene carbonate of the formula (1) wherein, R1 and R2 are each independently H; C1-C4 alkyl or phenyl group; which method characterized by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising a) metal halide [MXm] and b) pyridine or pyridine derivative [Py], wherein Py is selected from a group of pyridines; M is a metal atom selected from the group consisting of Zn, Fe, Mn, Pb and In; X is a halogen selected from the group consisting of Cl, Br and I; and m is 2 or 3.
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: June 18, 2002
    Assignee: Korea Institute of Science and Technology
    Inventors: Hoon Sik Kim, Jai Jun Kim, Byung Gwon Lee, Hong Gon Kim
  • Publication number: 20020013477
    Abstract: The present invention relates to a method to prepare alkylene carbonate of the formula (1) 1
    Type: Application
    Filed: February 9, 2001
    Publication date: January 31, 2002
    Applicant: Korea Institute of Science and Technology
    Inventors: Hoon Sik Kim, Jai Jun Kim, Byung Gwon Lee, Hong Gon Kim
  • Patent number: 6160130
    Abstract: The present invention relates to a method for preparing alkylene carbonate by reacting alkylene oxide with carbon dioxide in the presence of a catalyst comprising:a) at least one alkali metal halide selected from the group consisting of MCl, MBr and MI, whrerin M is alkali metal; andb) at least one manganese halide selected from the group consisting of MnCl.sub.2, MnBr.sub.2 and MnI.sub.2.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: December 12, 2000
    Assignee: Korea Institute of Science and Technology
    Inventors: Hoon Sik Kim, Jai Jun Kim, Byung Gwon Lee, Young Soo Kwon
  • Patent number: 6156909
    Abstract: The present invention relates to a method for preparing alkylene carbonate by reacting alkylene oxide with carbon dioxide in the presence of a catalyst system comprising:a) at least one selected from the group consisting of PbY.sub.2, InY.sub.3 and their mixture, wherein Y is Cl, Br or I; andb) at least one alkali metal halide selected from the group consisting of MCl, MBr and MI, wherein M is alkali metal.
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: December 5, 2000
    Assignee: Korea Institute of Science & Technology
    Inventors: Hoon Sik Kim, Jai Jun Kim, Sang Deuk Lee, Kun You Park, Hong Gon Kim