Patents by Inventor Dug Hoon SUNG

Dug Hoon SUNG 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).

  • Multimodal polyolefin resin, and molded body manufactured therefrom
    Patent number: 10604604
    Abstract: Multimodal polyolefin resins for manufacturing films, pipes, hollow molded articles having high melt strength and excellent formability, mechanical strength, processability and appearance are described. The resins have: density is 0.930-0.960 g/cm3; melt flow index is 0.01-10.0 g/10 minutes; ratio Mw/Mn is 10-60; and two or more peaks appear when molecular weight is measured by GPC. In molded pipe, the Mw of polymer collected at position B is 0.1% greater than Mw of polymer collected at position A; polymer having Mw of 10,000 or less among polymers collected at position A is 0.1% greater than the amount of polymer having Mw of 10,000 or less among polymers collected at position B; and the amount of polymer having Mw of 1,000,000 or more among polymers collected at position B is 0.1% greater than the amount of polymer having Mw of 1,000,000 or more among polymers collected at position A.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: March 31, 2020
    Assignee: DAELIM INDUSTRIAL CO., LTD.
    Inventors: Seung Tack Yu, Byung Keel Sohn, Yong Jae Jun, Young Shin Jo, Ki Soon Park, Jin Sook Oh, Sang Won Yu, Man Jung Kim, Dug Hoon Sung, Hee Suk Kim, Hae Guen Jeong
  • MULTIMODAL POLYOLEFIN RESIN, AND MOLDED BODY MANUFACTURED THEREFROM
    Publication number: 20180305481
    Abstract: Multimodal polyolefin resins for manufacturing films, pipes, hollow molded articles having high melt strength and excellent formability, mechanical strength, processability and appearance are described. The resins have: density is 0.930-0.960 g/cm3; melt flow index is 0.01-10.0 g/10 minutes; ratio Mw/Mn is 10-60; and two or more peaks appear when molecular weight is measured by GPC. In molded pipe, the Mw of polymer collected at position B is 0.1% greater than Mw of polymer collected at position A; polymer having Mw of 10,000 or less among polymers collected at position A is 0.1% greater than the amount of polymer having Mw of 10,000 or less among polymers collected at position B; and the amount of polymer having Mw of 1,000,000 or more among polymers collected at position B is 0.1% greater than the amount of polymer having Mw of 1,000,000 or more among polymers collected at position A.
    Type: Application
    Filed: October 27, 2016
    Publication date: October 25, 2018
    Inventors: Seung Tack YU, Byung Keel SOHN, Yong Jae JUN, Young Shin JO, Ki Soon PARK, Jin Sook OH, Sang Won YU, Man Jung KIM, Dug Hoon SUNG, Hee Suk KIM, Hae Guen JEONG