Patents by Inventor Jong Joo Ha

Jong Joo Ha 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).

  • Publication number: 20230383019
    Abstract: The present invention relates to equipment for preparing a polyolefin elastomer including a reactor to which a solvent and a raw material are supplied, a primary devolatilizer which devolatilizes a product discharged from the reactor to remove an unreacted material (primary devolatilization recovery flow), and to discharge the remainder thereof (primary devolatilization preparation flow), a secondary devolatilizer which re-devolatilizes the primary devolatilization preparation flow discharged from the primary devolatilizer to further remove an unreacted material (secondary devolatilization recovery flow), and to discharge the remainder thereof (secondary devolatilization preparation flow), a finisher which scrubs, using water, the secondary devolatilization preparation flow discharged from the secondary devolatilizer, so that the unreacted material and the water are evaporated and a polymer product remains, and a flash drum which removes low-molecular materials (impurity removal flow) from the primary devolat
    Type: Application
    Filed: July 26, 2021
    Publication date: November 30, 2023
    Inventors: Chan Ho PARK, Jong Joo HA, Min Su KO, Sang Joon OH
  • Patent number: 9447210
    Abstract: Provided are an olefin composition, filler and an optoelectronic device. One illustrative olefin composition may be effectively used as a filling material for various optoelectronic devices.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: September 20, 2016
    Assignee: LG CHEM, LTD
    Inventors: Beom Doo Seo, Hoon Chae, Choong Hoon Lee, Jong Joo Ha, Sung Ho Choi
  • Patent number: 9353295
    Abstract: The present invention relates to an olefin-based polymer which exhibits superior processability and superior adhesive properties and therefore is desirably applicable to a hot-melt adhesive (HMA) or the like, and a preparation method thereof. The olefin-based polymer has a molecular weight distribution (Mw/Mn, PDI) of 2˜3, and a density of 0.85 to 0.88 g/cm3, and satisfies the relation of Tc?Tm>0, wherein Tc (° C.) is a crystallization temperature and Tm (° C.) is a melting point.
    Type: Grant
    Filed: October 28, 2014
    Date of Patent: May 31, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Don-Ho Kum, Eun-Jung Lee, Jong-Joo Ha, Choong-Hoon Lee
  • Patent number: 9315605
    Abstract: The present invention relates to a method of producing an elastomer. Specifically, the method of producing an elastomer according to the present invention comprises a step of polymerizing ethylene, propylene, and optionally, a diene monomer in the presence of a catalyst composition containing a transition metal compound. The method of producing an elastomer according to the present invention makes it possible to prepare a high molecular weight, ethylene-propylene or ethylene-propylene-diene, elastic copolymer at a high temperature.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: April 19, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Eun-Jung Lee, Sung-Soo Park, Beom-Doo Seo, Cheon-Il Park, Choong-Hoon Lee, Jong-Joo Ha, Jung-A Lee
  • Patent number: 9130090
    Abstract: Provided are an olefin composition, filler and an optoelectronic device. One illustrative olefin composition may be effectively used as a filling material for various optoelectronic devices.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: September 8, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Beom Doo Seo, Hoon Chae, Choong Hoon Lee, Jong Joo Ha, Sung Ho Choi
  • Patent number: 9068068
    Abstract: The present invention provides a polypropylene-based resin composition, which comprises of a) a polypropylene; b) an ethylene 1-octene copolymer in which r1r2<1 (herein, r1=k11/k12, r2=k22/k21, k11 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is ethylene, k12 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is ethylene, k22 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is octene, and k21 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is octene); and c) an inorganic filling agent, and a part for vehicles manufactured by using the same.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: June 30, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Choong-Hoon Lee, Jong-Chan Lee, Dong-Kyu Park, Yang-Kee Kim, Jong-Joo Ha, Byung-Kwon Lim, Kyung-Seok Min, Don-Ho Kum
  • Publication number: 20150045526
    Abstract: The present invention relates to an olefin-based polymer which exhibits superior processability and superior adhesive properties and therefore is desirably applicable to a hot-melt adhesive (HMA) or the like, and a preparation method thereof. The olefin-based polymer has a molecular weight distribution (Mw/Mn, PDI) of 2˜3, and a density of 0.85 to 0.88 g/cm3, and satisfies the relation of Tc?Tm>0, wherein Tc (° C.) is a crystallization temperature and Tm (° C.) is a melting point.
    Type: Application
    Filed: October 28, 2014
    Publication date: February 12, 2015
    Inventors: Don-Ho KUM, Eun-Jung LEE, Jong-Joo HA, Choong-Hoon LEE
  • Patent number: 8946362
    Abstract: The present invention relates to a preparation method of olefin polymers using a catalyst composition containing a transition metal compound. In detail, the present invention provides a preparation method of olefin polymer using a catalyst composition comprising a transition metal compound, wherein the preparation method comprises introducing a scavenger to a continuous solution polymerization reactor in a specific range of amount to give the olefin polymer with good productivity.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: February 3, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Don-Ho Kum, Eun-Jung Lee, Dong-Kyu Park, Choong-Hoon Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Seong-Jin Kim
  • Publication number: 20140371414
    Abstract: The present invention relates to a method of producing an elastomer. Specifically, the method of producing an elastomer according to the present invention comprises a step of polymerizing ethylene, propylene, and optionally, a diene monomer in the presence of a catalyst composition containing a transition metal compound. The method of producing an elastomer according to the present invention makes it possible to prepare a high molecular weight, ethylene-propylene or ethylene-propylene-diene, elastic copolymer at a high temperature.
    Type: Application
    Filed: August 28, 2014
    Publication date: December 18, 2014
    Inventors: Eun-Jung LEE, Sung-Soo PARK, Beom-Doo SEO, Cheon-Il PARK, Choong-Hoon LEE, Jong-Joo HA, Jung-A LEE
  • Patent number: 8901267
    Abstract: The present invention relates to an olefin-based polymer which exhibits superior processability and superior adhesive properties and therefore is desirably applicable to a hot-melt adhesive (HMA) or the like, and a preparation method thereof. The olefin-based polymer has a molecular weight distribution (Mw/Mn, PDI) of 2˜3, and a density of 0.85 to 0.88 g/cm3, and satisfies the relation of Tc?Tm>0, wherein Tc (° C.) is a crystallization temperature and Tm (° C.) is a melting point.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: December 2, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Don-Ho Kum, Eun-Jung Lee, Jong-Joo Ha, Choong-Hoon Lee
  • Patent number: 8759466
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 24, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
  • Patent number: 8748547
    Abstract: The present invention relates to an ethylene ?-olefin copolymer having a narrower molecular weight distribution, and a uniform distribution of comonomer. The ethylene ?-olefin copolymer according to the present invention has a uniform comonomer distribution and exhibits a lower density in the same comonomer content, unlike conventional ethylene copolymers having a random or blocky comonomer distribution.
    Type: Grant
    Filed: May 7, 2008
    Date of Patent: June 10, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dong-Kyu Park, Byung-Kwon Lim, Jong-Joo Ha, Don-Ho Kum, Yang-Kee Kim, Choong-Hoon Lee, Seung-Whan Jung
  • Patent number: 8742049
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.
    Type: Grant
    Filed: July 30, 2013
    Date of Patent: June 3, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
  • Patent number: 8735312
    Abstract: The present invention relates to a catalyst composition and a process for preparing an olefin polymer using the same. More specifically, the present invention relates to a novel catalyst composition comprising at least two types of catalysts and a process for preparing an olefin polymer having excellent heat resistance using the same. The present invention can provide an olefin polymer having excellent activity and high heat resistance, and also can control the values of density, heat resistance and melt index (MI) of the olefin polymer.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: May 27, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Kyung-Seop Noh, Hoon Chae, Cheon-Il Park, Won-Hee Kim, Sang-Jin Jeon, Eun-Jung Lee, Choong-Hoon Lee, Jong-Joo Ha
  • Patent number: 8716414
    Abstract: The present invention relates to a mixed metallocene catalyst composition including a first metallocene catalyst and a second metallocene catalyst, and a method for preparing a polyolefin using the catalyst composition. According to the catalyst composition and the preparation method, provided is a polyolefin having a wide molecular weight distribution and superior mechanical properties and processability.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: May 6, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jong-Joo Ha, Choong-Hoon Lee, Don-Ho Kum, Eun-Jung Lee, Beom-Doo Seo
  • Publication number: 20140066562
    Abstract: The present invention provides a polypropylene-based resin composition, which comprises of a) a polypropylene; b) an ethylene 1-octene copolymer in which r1r2<1 (herein, r1=k11/k12, r2=k22/k21, k11 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is ethylene, k12 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is ethylene, k22 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is octene, and k21 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is octene); and c) an inorganic filling agent, and a part for vehicles manufactured by using the same.
    Type: Application
    Filed: November 6, 2013
    Publication date: March 6, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Choong-Hoon Lee, Jong-Chan Lee, Dong-Kyu Park, Yang-Kee Kim, Jong-Joo Ha, Byung-Kwon Lim, Kyung-Seok Min, Don-Ho Kum
  • Patent number: 8604125
    Abstract: The present invention provides a polypropylene-based resin composition, which comprises of a) a polypropylene; b) an ethylene 1-octene copolymer in which r1r2<1 (herein, r1=k11/k12, r2=k22/k21, k11 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is ethylene, k12 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is ethylene, k22 is a growth reaction rate constant when octene is added to a growth chain in which an end active site is octene, and k21 is a growth reaction rate constant when ethylene is added to a growth chain in which an end active site is octene); and c) an inorganic filling agent, and a part for vehicles manufactured by using the same.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: December 10, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Choong-Hoon Lee, Jong-Chan Lee, Dong-Kyu Park, Yang-Kee Kim, Jong-Joo Ha, Byung-Kwon Lim, Kyung-Seok Min, Don-Ho Kum
  • Publication number: 20130317186
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.
    Type: Application
    Filed: July 30, 2013
    Publication date: November 28, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
  • Publication number: 20130317187
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.
    Type: Application
    Filed: July 30, 2013
    Publication date: November 28, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park
  • Patent number: 8513369
    Abstract: The present invention relates to an ethylene-alpha olefin copolymer comprising long chain branches (LCB), while having a narrow molecular weight distribution. The ethylene-alpha olefin copolymer can be prepared by a continuous solution polymerization process using an activated catalyst composition containing a Group 4 transition metal compound having a monocyclopentadienyl ligand, to which a quinoline amino group is introduced.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: August 20, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Choong-Hoon Lee, Byung-Kwon Lim, Eun-Jung Lee, Jong-Joo Ha, Seung-Whan Jung, Jung-A Lee, Ki-Su Ro, Don-Ho Kum, Dong-Kyu Park