Patents by Inventor Hee Kwang PARK

Hee Kwang 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).

  • Transition metal compound, catalyst composition comprising same, and method for producing olefin polymer using same
    Patent number: 10280238
    Abstract: The present invention provides a transition metal compound, a catalyst composition comprising the same, and a method for producing an olefin polymer using the catalyst composition, the transition metal compound being capable of exhibiting high activity in olefin polymerization reaction, and also being capable of easily controlling the physical properties of an olefin polymer. When the transition metal compound is used, it is possible to provide an olefin polymer having an excellent energy-saving effect at the time of processing or molding.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: May 7, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Byung Seok Kim, Hee Kwang Park, Kyung Seop Noh, Sang Eun An, In Sun Lee, Hye Kyung Lee, Sang Jin Jeon, Ra Yun Choi
  • Method For Predicting The Break-up Possibility Of A Synthetic Resin Filament In A Melt Blowing Process From Rheological Properties Of The Synthetic Resin
    Publication number: 20190113428
    Abstract: The present invention relates to a method for predicting the break-up possibility of a synthetic resin filament in a melt blowing process from the rheological properties of the synthetic resin. According to the present invention, a method that is capable of predicting the break-up possibility of the synthetic resin filament in the melt blowing process for preparing a filament using the synthetic resin in advance, through the measurement of the rheological properties of the synthetic resin, is provided.
    Type: Application
    Filed: August 31, 2017
    Publication date: April 18, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Hyun Sup Lee, Ki Soo Lee, Sang Jin Jeon, Sang Eun An, Myung Han Lee, Hee Kwang Park, Sang Eun Kim, Sang Hoon Lee
  • Metallocene Supported Catalyst And Method For Preparing Polypropylene Using The Same
    Publication number: 20190106516
    Abstract: The present invention relates to a metallocene supported catalyst including a novel single metallocene compound having excellent polymerization activity, and a process for producing a polypropylene having excellent processability and broad molecular eight distribution using the same.
    Type: Application
    Filed: October 11, 2017
    Publication date: April 11, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Jong Woo Park, Hye Kyung Lee, Byung Seok Kim, Sang Jin Jeon, Jae Youp Cheong, Hee Kwang Park
  • Non-stretched polypropylene-based film
    Patent number: 10214601
    Abstract: The polypropylene copolymer according to the present invention has a low melting point and also is excellent in the low temperature heat sealing effect, transparency and strength, and the film prepared therefrom can be effectively used as a sealing layer of the non-stretched polypropylene-based film.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: February 26, 2019
    Assignee: LG Chem, Ltd.
    Inventors: Kyung Seop Noh, Ji Ho Choi, Churl Young Park, Ki Soo Lee, Sang Jin Jeon, Hee Kwang Park, Won-Sang Lee, Ah Young Seo
  • METHOD FOR PREPARING LONG FIBER-REINFORCING OLEFIN POLYMER AND LONG FIBER
    Publication number: 20180237560
    Abstract: The present invention provides a method for preparing an olefin polymer which can exhibit excellent isotacticity in a high yield and thus is suitable for use in reinforcing a long fiber, and a long fiber comprising an olefin polymer produced according to the above preparation method.
    Type: Application
    Filed: November 30, 2016
    Publication date: August 23, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Kyung Seop Noh, Ki Soo Lee, Sang Jin Jeon, Sang Eun An, Ji Ho Choi, Jae Youp Cheong, Hee Kwang Park, Sang Hoon Lee
  • TRANSITION METAL COMPOUND, CATALYST COMPOSITION COMPRISING SAME, AND METHOD FOR PRODUCING OLEFIN POLYMER USING SAME
    Publication number: 20180105616
    Abstract: The present invention provides a transition metal compound, a catalyst composition comprising the same, and a method for producing an olefin polymer using the catalyst composition, the transition metal compound being capable of exhibiting high activity in olefin polymerization reaction, and also being capable of easily controlling the physical properties of an olefin polymer. When the transition metal compound is used, it is possible to provide an olefin polymer having an excellent energy-saving effect at the time of processing or molding.
    Type: Application
    Filed: June 28, 2016
    Publication date: April 19, 2018
    Inventors: Byung Seok KIM, Hee Kwang PARK, Kyung Seop NOH, Sang Eun AN, In Sun LEE, Hye Kyung LEE, Sang Jin JEON, Ra Yun CHOI
  • Metallocene catalyst for preparing a high molecular weight polyolefin and a preparation method thereof
    Patent number: 9884926
    Abstract: The present invention relates to a metallocene compound having novel structure which can provide various selectivity and activity to polyolefin copolymers, a preparation method thereof, and a preparation method of polyolefin using the metallocene compound.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: February 6, 2018
    Assignee: LG Chem, Ltd.
    Inventors: Hee Kwang Park, Hye Kyung Lee, Byung Seok Kim, Jae Youp Cheong, Kyung Seop Noh, Ra Yun Choi, Sang Hoon Lee, Sang Jin Jeon
  • Metallocene catalyst for preparing a high molecular weight polyolefin and a preparation method thereof
    Patent number: 9783557
    Abstract: The present invention relates to a metallocene compound having novel structure which can provide various selectivity and activity to polyolefin copolymers, a preparation method thereof, and a preparation method of polyolefin using the metallocene compound.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: October 10, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Hee Kwang Park, Byung Seok Kim, Hye Kyung Lee, Jae Youp Cheong, Kyung Seop Noh, Sang Eun An, In Sun Lee, Sang Jin Jeon
  • A METALLOCENE CATALYST FOR PREPARING A HIGH MOLECULAR WEIGHT POLYOLEFIN AND A PREPARATION METHOD THEREOF
    Publication number: 20160340451
    Abstract: The present invention relates to a metallocene compound having novel structure which can provide various selectivity and activity to polyolefin copolymers, a preparation method thereof, and a preparation method of polyolefin using the metallocene compound.
    Type: Application
    Filed: October 8, 2015
    Publication date: November 24, 2016
    Applicant: LG CHEM, Ltd.
    Inventors: Hee Kwang PARK, Hye Kyung LEE, Byubg Seok KIM, Jae Youp CHEONG, Kyung Seop NOH, Ra Yun CHOI, Sang Hoon LEE, Sang Jin JEON
  • NON-STRETCHED POLYPROPYLENE-BASED FILM
    Publication number: 20160333125
    Abstract: The polypropylene copolymer according to the present invention has a low melting point and also is excellent in the low temperature heat sealing effect, transparency and strength, and the film prepared therefrom can be effectively used as a sealing layer of the non-stretched polypropylene-based film.
    Type: Application
    Filed: December 4, 2015
    Publication date: November 17, 2016
    Inventors: Kyung Seop NOH, Ji Ho CHOI, Churl Young PARK, Ki Soo LEE, Sang Jin JEON, Hee Kwang PARK, Won-Sang LEE, Ah Young SEO
  • A METALLOCENE CATALYST FOR PREPARING A HIGH MOLECULAR WEIGHT POLYOLEFIN AND A PREPARATION METHOD THEREOF
    Publication number: 20160257703
    Abstract: The present invention relates to a metallocene compound having novel structure which can provide various selectivity and activity to polyolefin copolymers, a preparation method thereof, and a preparation method of polyolefin using the metallocene compound.
    Type: Application
    Filed: October 8, 2015
    Publication date: September 8, 2016
    Inventors: Hee Kwang PARK, Byung Seok KIM, Hye Kyung LEE, Jae Youp CHEONG, Kyung Seop NOH, Sang Eun AN, In Sun LEE, Sang Jin JEON