Patents by Inventor Jung Kyu Ju

Jung Kyu Ju 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).

  • Rigid polyurethane foam having excellent insulating properties and method for preparing the same
    Patent number: 9181411
    Abstract: The present invention provides rigid polyurethane foam comprising thermally expandable particles which are displaced to penetrate a strut of a structure of the polyurethane foam so that the particles are exposed into one or more cells of the polyurethane foam during foaming. Further, the rigid polyurethane foam can comprise hollow thermally expanded particles which are displaced to penetrate a surface of a cell in the polyurethane foam so that the particles are exposed into one or more cells of the polyurethane foam during foaming. The rigid polyurethane of the present invention can have excellent insulating properties.
    Type: Grant
    Filed: November 23, 2010
    Date of Patent: November 10, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Kyung Hyun Baek, Jung Bae Jun, Jung Kyu Ju
  • Highly insulating polyurethane foam and method for manufacturing same
    Patent number: 9045608
    Abstract: The rigid polyurethane foam includes thermally expandable fine particles disposed between two or more adjacent cells, so as to be exposed to the inside and/or the outside of a unit cell, and a filler which is dispersed on the surface of the thermally expandable fine particles and/or on the inner and/or outer surfaces of the unit cell. The cells of the rigid polyurethane foam can be small and uniform in size and can be highly insulating.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: June 2, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Kyung Hyun Baek, Jung Bae Jun, Jung Kyu Ju
  • Rigid Polyurethane Foam Having Excellent Insulating Properties and Method for Preparing the Same
    Publication number: 20110124753
    Abstract: The present invention provides rigid polyurethane foam comprising thermally expandable particles which are displaced to penetrate a strut of a structure of the polyurethane foam so that the particles are exposed into one or more cells of the polyurethane foam during foaming. Further, the rigid polyurethane foam can comprise hollow thermally expanded particles which are displaced to penetrate a surface of a cell in the polyurethane foam so that the particles are exposed into one or more cells of the polyurethane foam during foaming. The rigid polyurethane of the present invention can have excellent insulating properties.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 26, 2011
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Kyung Hyun BAEK, Jung Bae JUN, Jung Kyu JU
  • Thermally-Expandable Microspheres Having Good Foaming Characteristics and Uniform Microsphere Diameter and Methods of Preparing the Same
    Publication number: 20110123807
    Abstract: The present invention provides a thermally expandable microsphere having a core-shell structure comprising: a shell including a thermoplastic polymer and a long-chain crosslinking agent having a weight-average molecular weight between cross-linking sites of more than about 500; and a core including a foaming agent. The thermally expandable microsphere of the present invention can have excellent foaming characteristics and an even (uniform) microsphere diameter.
    Type: Application
    Filed: November 23, 2010
    Publication date: May 26, 2011
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Jung Bae Jun, Kyung Hyun Baek, Jung Kyu Ju