Patents by Inventor Ranwha PARK

Ranwha PARK 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: 20240010760
    Abstract: A transition metal compound and an olefin polymerization catalyst containing the transition metal compound are disclosed. A method for preparing the transitional metal and a method for preparing the catalyst are disclosed. The transition metal compound has a carbon-bridged cyclopentadienyl-fluorenyl skeleton bearing a substituted bisphenyl group. The olefin polymerization catalyst contains the transition metal compound and a cocatalyst compound.
    Type: Application
    Filed: November 15, 2021
    Publication date: January 11, 2024
    Applicant: HANWHA SOLUTIONS CORPORATION
    Inventors: Won Jong LEE, Taeho JEONG, Ji Min HAN, Wook JEONG, Ranwha PARK, Seongyeon PARK
  • Publication number: 20230312773
    Abstract: A catalyst containing mixed transition metal compounds is disclosed. The catalyst is capable of producing various polyolefins having excellent processability and mechanical properties. A polyolefin prepared using the catalyst and processes for preparing the polyolefin are disclosed. In the preparation process, it is possible to conveniently prepare a catalyst for olefin polymerization including mixed transition metal compounds by readily adjusting the ratio of the transition metal compounds.
    Type: Application
    Filed: August 4, 2021
    Publication date: October 5, 2023
    Applicant: HANWHA SOLUTIONS CORPORATION
    Inventors: Hye Ran PARK, Ranwha PARK, Sung Dong KIM, Junho SEO, Munhee LEE, Won Jong LEE, Ui Gap JOUNG, Taeho JEONG, Ji Min HAN
  • Publication number: 20230192911
    Abstract: The present invention relates to a hybrid catalyst composition comprising different transition metal compounds, to a catalyst for olefin polymerization comprising the same, and to processes for preparing the same. Specifically, the present invention relates to a hybrid catalyst composition comprising two or more types of transition metal compounds having a non-bridged biscyclopentadienyl group with different central metals, to a catalyst for olefin polymerization comprising the same, and processes for preparing the hybrid catalyst composition and the catalyst.
    Type: Application
    Filed: May 14, 2021
    Publication date: June 22, 2023
    Inventors: Ranwha PARK, Seongyeon PARK, Won Jong LEE, Taeho JEONG, Ji Min HAN
  • Publication number: 20230139681
    Abstract: The present invention relates to a hybrid catalytic composition comprising different transition metal compounds, to a catalyst for olefin polymerization comprising the same, and to processes for preparing the same. Specifically, the present invention relates to a hybrid catalytic composition comprising different transition metal compounds capable of producing various polyolefins having excellent processability and mechanical properties, to a catalyst for olefin polymerization comprising the same, and processes for preparing the hybrid catalytic composition and the catalyst by adjusting the ratio of the transition metal compounds.
    Type: Application
    Filed: February 19, 2021
    Publication date: May 4, 2023
    Inventors: Ranwha PARK, Seongyeon PARK, Won Jong LEE, Wook JEONG, Taeho JEONG
  • Publication number: 20230118712
    Abstract: The present invention relates to a process for preparing a transition metal compound. Specifically, the present invention relates to a process for preparing a transition metal compound having a non-bridged, asymmetric biscyclopentadienyl group that can be used in the preparation of a catalyst for olefin polymerization. The process for preparing a transition metal compound according to an embodiment of the present invention is capable of conveniently preparing a transition metal compound having a non-bridged, asymmetric biscyclopentadienyl group.
    Type: Application
    Filed: March 5, 2021
    Publication date: April 20, 2023
    Inventors: Ranwha PARK, Seongyeon PARK, Won Jong LEE, Wook JEONG, Taeho JEONG
  • Publication number: 20220275115
    Abstract: The present invention relates to a transition metal compound for a catalyst for olefin polymerization and to a catalyst for olefin polymerization comprising the same. Specifically, the present invention relates to a transition metal compound for a catalyst for olefin polymerization in which an allyltrimethylsilane substituent is introduced into the carbon-bridged cyclopentadienyl fluorenyl backbone and to a catalyst for olefin polymerization comprising the same.
    Type: Application
    Filed: July 17, 2020
    Publication date: September 1, 2022
    Inventors: Seongyeon PARK, Ranwha PARK, Won Jong LEE, Hyunseung LEE, Wook JEONG, Taeho JEONG
  • Publication number: 20220169757
    Abstract: The present invention relates to a hybrid catalytic composition comprising different transition metal compounds, to a catalyst for olefin polymerization comprising the same, and to processes for preparing the same. Specifically, the present invention relates to a hybrid catalytic composition comprising different transition metal compounds capable of producing various polyolefins having excellent processability and mechanical properties, to a catalyst for olefin polymerization comprising the same, and processes for preparing the hybrid catalytic composition and the catalyst by adjusting the ratio of the transition metal compounds.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 2, 2022
    Inventors: Ranwha PARK, Seongyeon PARK, Hyunseung LEE, Wook JEONG