Patents by Inventor Jeon Sik KIM

Jeon Sik 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).

  • Method for preparing aliphatic isocyanate
    Patent number: 10654796
    Abstract: Provided is a method capable of preparing high-purity aliphatic isocyanate, particularly, xylylene isocyanate in a high yield in a simple manner without an additional separate process, wherein when aliphatic isocyanate is prepared using phosgene, a side-reaction inhibitor capable of inhibiting side-reactions is introduced during phosgenation.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: May 19, 2020
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Ju Young Park, Cho Hee Ahn, Seung Won Chae, Jeon Sik Kim, Sang Hyun Cho
  • Method for preparing aliphatic isocyanate
    Patent number: 10611724
    Abstract: Provided is a method capable of preparing high-purity aliphatic isocyanate, particularly, xylylene isocyanate in a high yield in a simple manner without an additional separate process, wherein when aliphatic isocyanate is prepared using phosgene, a side-reaction inhibitor capable of inhibiting side-reactions is introduced during phosgenation.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: April 7, 2020
    Assignee: HANWHA CHEMICAL CORPORATION
    Inventors: Ju Young Park, Cho Hee Ahn, Seung Won Chae, Jeon Sik Kim, Sang Hyun Cho
  • METHOD FOR PREPARING ALIPHATIC ISOCYANATE
    Publication number: 20200102268
    Abstract: Provided is a method capable of preparing high-purity aliphatic isocyanate, particularly, xylylene isocyanate in a high yield in a simple manner without an additional separate process, wherein when aliphatic isocyanate is prepared using phosgene, a side-reaction inhibitor capable of inhibiting side-reactions is introduced during phosgenation.
    Type: Application
    Filed: December 6, 2017
    Publication date: April 2, 2020
    Inventors: Ju Young PARK, Cho Hee AHN, Seung Won CHAE, Jeon Sik KIM, Sang Hyun CHO