Patents by Inventor Jeong Hoon Jo

Jeong Hoon Jo 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).

  • Nitrile rubber and method of preparing the same
    Patent number: 9809670
    Abstract: Disclosed are nitrile rubber and a method of preparing the same. The nitrile rubber contributing to an excellent polymerization rate and vulcanization rate and having advantageous processability during vulcanization, and a method of preparing the same are disclosed.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: November 7, 2017
    Assignee: LG Chem, Ltd.
    Inventors: Se Eun Lee, Dong Jo Ryu, Seon Hee Han, Jeong Heon Ahn, Hee Jung Jeon, Jeong Hoon Jo
  • Method for producing nitrile rubber
    Patent number: 9163096
    Abstract: Disclosed is a method for producing a nitrile rubber comprising adding 0.1 to 5 parts by weight of at least one phosphate emulsifier selected from the group consisting of monoalkyl ether phosphate (MAP) represented by the following Formula 1 and dialkyl ether phosphate (DAP) represented by the following Formula 2, with respect to 100 parts by weight of monomers constituting the nitrile rubber. The method minimizes mold contamination during molding of produced nitrile rubber, eliminates the necessity of any process of removing mold contaminants, improves production efficiency and thus reduces defect rates of final molded articles.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: October 20, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Dong Jo Ryu, Se Eun Lee, Sin Gun Kang, Seon Hee Han, Jeong Heon Ahn, Jeong Hoon Jo, Hee Jung Jeon
  • NITRILE RUBBER AND PRODUCTION METHOD FOR SAME
    Publication number: 20150191563
    Abstract: Disclosed are nitrile rubber and a method of preparing the same. The nitrile rubber contributing to an excellent polymerization rate and vulcanization rate and having advantageous processability during vulcanization, and a method of preparing the same are disclosed.
    Type: Application
    Filed: June 24, 2014
    Publication date: July 9, 2015
    Applicant: LG Chem, Ltd
    Inventors: Se Eun Lee, Dong Jo Ryu, Seon Hee Han, Jeong Heon Ahn, Hee Jung Jeon, Jeong Hoon Jo
  • METHOD FOR PRODUCING NITRILE RUBBER
    Publication number: 20140350203
    Abstract: Disclosed is a method for producing a nitrile rubber comprising adding 0.1 to 5 parts by weight of at least one phosphate emulsifier selected from the group consisting of monoalkyl ether phosphate (MAP) represented by the following Formula 1 and dialkyl ether phosphate (DAP) represented by the following Formula 2, with respect to 100 parts by weight of monomers constituting the nitrile rubber. The method minimizes mold contamination during molding of produced nitrile rubber, eliminates the necessity of any process of removing mold contaminants, improves production efficiency and thus reduces defect rates of final molded articles.
    Type: Application
    Filed: August 3, 2012
    Publication date: November 27, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Dong Jo Ryu, Se Eun Lee, Sin Gun Kang, Seon Hee Han, Jeong Heon Ahn, Jeong Hoon Jo, Hee JUng Jeon