Patents by Inventor Hee-Sun Bae

Hee-Sun Bae 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).

  • Copolymer of ethylene and alpha-olefin, and method for preparing same
    Patent number: 9518138
    Abstract: A liquid random copolymer of ethylene and alpha-olefin prepared by using specific metallocene catalyst and ionic compound and a method for preparing the same are disclosed. The liquid random copolymer has high viscosity index and shear stability so that it is useful as synthetic lubricants. The liquid random copolymer of ethylene and alpha-olefin (1) comprises 60 to 40 mol % of ethylene units and 40 to 60 mol % of alpha-olefin unit having 3 to 20 carbon atoms, (2) has number average molecular weight (Mn) of 500 to 10,000 and a molecular weight distribution (Mw/Mn, Mw is the weight average molecular weight) of 3 or less measured by Gel Permeation Chromatography (GPC) (3) has Kinematic Viscosity at 100° C. of 30 to 5,000, (4) has pour point of 30 to ?45° C., and (5) has Bromine Number of 0.1 or less.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: December 13, 2016
    Assignee: DAELIM INDUSTRIAL CO., LTD.
    Inventors: Jae Hoon Uhm, Sang-Deok Mun, Jin-Hun Ju, Hee-Sun Bae, Sah-Mun Hong, Byung-Keel Sohn
  • COPOLYMER OF ETHYLENE AND ALPHA-OLEFIN, AND METHOD FOR PREPARING SAME
    Publication number: 20150266985
    Abstract: A liquid random copolymer of ethylene and alpha-olefin prepared by using specific metallocene catalyst and ionic compound and a method for preparing the same are disclosed. The liquid random copolymer has high viscosity index and shear stability so that it is useful as synthetic lubricants. The liquid random copolymer of ethylene and alpha-olefin (1) comprises 60 to 40 mol % of ethylene units and 40 to 60 mol % of alpha-olefin unit having 3 to 20 carbon atoms, (2) has number average molecular weight (Mn) of 500 to 10,000 and a molecular weight distribution (Mw/Mn, Mw is the weight average molecular weight) of 3 or less measured by Gel Permeation Chromatography (GPC) (3) has Kinematic Viscosity at 100° C. of 30 to 5,000, (4) has pour point of 30 to ?45° C., and (5) has Bromine Number of 0.1 or less.
    Type: Application
    Filed: November 15, 2013
    Publication date: September 24, 2015
    Applicant: DAELIM INDUSTRIAL CO., LTD.
    Inventors: Jae Hoon Uhm, Sang-Deok Mun, Jin-Hun Ju, Hee-Sun Bae, Sah-Mun Hong, Byung-Keel Sohn