Patents by Inventor Heon Yong Kwon

Heon Yong Kwon 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).

  • Patent number: 11767377
    Abstract: Provided are a novel metallocene-supported catalyst and a method of preparing a polyolefin using the same. The metallocene-supported catalyst according to the present disclosure may be used in the preparation of polyolefins, it may have excellent activity and excellent reactivity with comonomers, and it may prepare olefinic polymers having a high molecular weight and a low molecular weight.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: September 26, 2023
    Assignee: LG CHEM LTD.
    Inventors: Eun Young Shin, Heon Yong Kwon, Se Young Kim, Hyun Jee Kwon, Dae Sik Hong, Sung Min Lee, Ki Soo Lee
  • Patent number: 11759977
    Abstract: The present invention provides a polypropylene resin pellet that is environment friendly, has excellent workability, and enables preparation of fine denier fiber, and a method for preparing the same.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: September 19, 2023
    Inventors: Heekwang Park, Hye Kyung Lee, Ha Na Park, Kyung Seop Noh, Hyunsup Lee, Seong Min Chae, Heon Yong Kwon, Sangjin Jeon, Seok Hwan Kim
  • Patent number: 11746168
    Abstract: The present disclosure provides an olefin polymer having excellent film processability and physical properties, and a preparation method of the same.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: September 5, 2023
    Inventors: Oh Joo Kwon, Sol Cho, Seung Ki Park, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Sung Hyun Park, Sung Ho Park, Jin Young Lee
  • Patent number: 11358979
    Abstract: The present invention relates to a supported catalyst comprising a novel metallocene compound having excellent polymerization activity, and a method for producing polypropylene comprising polymerizing propylene in the presence of the catalyst. The supported metallocene-catalyst of the present invention can produce a polypropylene having a relatively narrow molecular weight distribution and a SPAN value.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: June 14, 2022
    Inventors: Jae Youp Cheong, Heon Yong Kwon, Daesik Hong, Sangjin Jeon
  • Publication number: 20220089797
    Abstract: The present disclosure provides an olefin polymer having excellent film processability and physical properties, and a preparation method of the same.
    Type: Application
    Filed: December 3, 2021
    Publication date: March 24, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Oh Joo Kwon, Sol Cho, Seung Ki Park, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Sung Hyun Park, Sung Ho Park, Jin Young Lee
  • Patent number: 11169066
    Abstract: The present application relates to a method for quantitative analysis of a polymer structure. Specifically, the method may be carried out through steps of measuring rheological properties and/or molecular weight distribution of the arbitrarily selected polymer, setting a random value for the selected polymer and then predicting the rheological property and/or the molecular weight distribution of the polymer from the random value, and comparing the measured value with the predicted value to determine the value of the structural parameter of the polymer.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: November 9, 2021
    Inventors: Sung Hyun Park, Chae Gyu Lee, Ye Hoon Im, Yu Taek Sung, Myung Han Lee, Oh Joo Kwon, Heon Yong Kwon, Dae Sik Hong
  • Patent number: 11091571
    Abstract: The present invention provides a hybrid supported catalyst capable of easily preparing an olefin polymer capable of having improved melt strength even while having appropriate molecular weight distribution, and thus having improved bubble stability and exhibiting excellent blown film processability, and a method for preparing an olefin polymer using the same.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: August 17, 2021
    Inventors: Sung Ho Park, Heon Yong Kwon, Hyun Jee Kwon, Jin Young Lee, Ki Soo Lee, Dae Sik Hong, Sol Cho, Oh Joo Kwon
  • Publication number: 20210087306
    Abstract: Provided are a novel metallocene-supported catalyst and a method of preparing a polyolefin using the same. The metallocene-supported catalyst according to the present disclosure may be used in the preparation of polyolefins, it may have excellent activity and excellent reactivity with comonomers, and it may prepare olefinic polymers having a high molecular weight and a low molecular weight.
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Inventors: Eun Young SHIN, Heon Yong KWON, Se Young KIM, Hyun Jee KWON, Dae Sik HONG, Sung Min LEE, Ki Soo LEE
  • Publication number: 20210078205
    Abstract: The present invention provides a polypropylene resin pellet that is environment friendly, has excellent workability, and enables preparation of fine denier fiber, and a method for preparing the same.
    Type: Application
    Filed: November 4, 2019
    Publication date: March 18, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Heekwang Park, Hye Kyung Lee, Ha Na Park, Kyung Seop Noh, Hyunsup Lee, Seong Min Chae, Heon Yong Kwon, Sangjin Jeon, Seok Hwan Kim
  • Patent number: 10889662
    Abstract: Provided are a novel metallocene-supported catalyst and a method of preparing a polyolefin using the same. The metallocene-supported catalyst according to the present disclosure may be used in the preparation of polyolefins, it may have excellent activity and excellent reactivity with comonomers, and it may prepare olefinic polymers having a high molecular weight and a low molecular weight.
    Type: Grant
    Filed: December 14, 2015
    Date of Patent: January 12, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Eun Young Shin, Heon Yong Kwon, Se Young Kim, Hyun Jee Kwon, Dae Sik Hong, Sung Min Lee, Ki Soo Lee
  • Patent number: 10870712
    Abstract: The present invention provides a method for preparing a polyolefin having a broad molecular weight distribution. More specifically, the present invention provides a method for preparing a polyolefin having a broad molecular weight distribution and an ultra-high molecular weight in which an organometallic complex containing a specific Ti—Al complex structure is used as a molecular weight controller (i.e., molecular weight enhance) in the polymerization of an olefin monomer, thereby enabling both solution polymerization and slurry polymerization, particularly enabling the molecular weight distribution to be more readily and effectively controlled.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: December 22, 2020
    Assignee: LG CHEM. LTD.
    Inventors: Eun Kyoung Song, Yong Ho Lee, Kyung Jin Cho, Yi Young Choi, Ki Soo Lee, Heon Yong Kwon, Young Suk You
  • Patent number: 10865260
    Abstract: The present disclosure provides a supported hybrid catalyst which facilitates the preparation of polyolefins having improved bubble stability and exhibiting excellent processability for a blown film while maintaining high transparent haze and improved melt strength, and a method for preparing the same.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: December 15, 2020
    Inventors: Jin Young Lee, Sung Ho Park, Heon Yong Kwon, Hyun Jee Kwon, Sol Cho, Oh Joo Kwon, Ki Soo Lee, Dae Sik Hong
  • Publication number: 20200369701
    Abstract: A supported catalyst including a novel metallocene compound having excellent polymerization activity, and a method for producing polypropylene by polymerizing propylene in the presence of the catalyst are provided. The metallocene-supported catalyst of the present invention can produce a polypropylene having a relatively narrow molecular weight distribution and a SPAN value.
    Type: Application
    Filed: December 21, 2018
    Publication date: November 26, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jae Youp Cheong, Heon Yong Kwon, Daesik Hong, Sangjin Jeon
  • Patent number: 10766985
    Abstract: The present invention relates to an olefin polymer and a preparation method thereof. The olefin polymer exhibits excellent mechanical strength and high processability, and thus is expected to be utilized as a material for various products. Particularly, the olefin polymer can be stably produced into films by a melt-blowing process and thus is expected to be usefully used as a material for products prepared by a melt-blowing process.
    Type: Grant
    Filed: February 22, 2017
    Date of Patent: September 8, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sol Cho, Sung Hyun Park, Oh Joo Kwon, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Myung Han Lee, Hyun Jee Kwon
  • Patent number: 10717793
    Abstract: The present invention provides an olefin polymer in which LCB (long chain branch) is introduced into mLLDPE (metallocene linear low-density polyethylene) to control the storage modulus, whereby the olefin polymer has excellent bubble stability and processing load characteristics and exhibits excellent processability during preparation of a film, and further has excellent mechanical properties and transparency.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: July 21, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Sol Cho, Ki Soo Lee, Heon Yong Kwon, Sung Hyun Park, Myung Han Lee, Oh Joo Kwon, Seung Mi Lee, Eun Ji Shin, Hyun Jee Kwon, Sung Ho Park, Seul Ki Im, Jin Young Lee
  • Patent number: 10669356
    Abstract: The present invention relates to a supported hybrid catalyst and a method for preparing olefin polymer using the same. Using the supported hybrid catalyst, olefin polymer that maintains excellent mechanical strength of olefin polymer polymerized with the existing metallocene catalyst, but exhibits remarkably improved processibility compared to the existing olefin polymer, can be provided.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: June 2, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Hyun Jee Kwon, Heon Yong Kwon, Dae Sik Hong, Dae Hwan Kim, Sung Min Lee, Eun Young Shin, Sung Ho Park, Young Suk You, Jin Young Lee
  • Publication number: 20200123290
    Abstract: The present invention provides a hybrid supported catalyst capable of easily preparing an olefin polymer capable of having improved melt strength even while having appropriate molecular weight distribution, and thus having improved bubble stability and exhibiting excellent blown film processability, and a method for preparing an olefin polymer using the same.
    Type: Application
    Filed: August 18, 2017
    Publication date: April 23, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Sung Ho Park, Heon Yong Kwon, Hyun Jee Kwon, Jin Young Lee, Ki Soo Lee, Dae Sik Hong, Sol Cho, Oh Joo Kwon
  • Patent number: 10570221
    Abstract: The present invention provides a metallocene supported catalyst that can prepare a polyolefin having excellent transparency even when processed into a film, as well as excellent processibility and mechanical properties, with high catalytic activity, and a method for preparing a polyolefin using the same.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: February 25, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Young Suk You, Sung Ho Park, Ki Soo Lee, Heon Yong Kwon, Dae Sik Hong, Eun Young Shin, Hyun Jee Kwon, Jin Young Lee
  • Patent number: 10550207
    Abstract: The present disclosure provides a method for preparing a supported hybrid metallocene catalyst which can be used to prepare a polyolefin, a supported hybrid metallocene catalyst prepared by using the method, and a method for preparing a polyolefin using the supported hybrid metallocene catalyst.
    Type: Grant
    Filed: November 24, 2016
    Date of Patent: February 4, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Heon Yong Kwon, Eun Young Shin, Hyun Jee Kwon, Ki Soo Lee, Dae Sik Hong, Se Young Kim, Sung Min Lee
  • Publication number: 20200010589
    Abstract: The present disclosure provides a supported hybrid catalyst which facilitates the preparation of polyolefins having improved bubble stability and exhibiting excellent processability for a blown film while maintaining high transparent haze and improved melt strength, and a method for preparing the same.
    Type: Application
    Filed: January 25, 2018
    Publication date: January 9, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jin Young Lee, Sung Ho Park, Heon Yong Kwon, Hyun Jee Kwon, Sol Cho, Oh Joo Kwon, Ki Soo Lee, Dae Sik Hong