Patents by Inventor Gapgoung Kong

Gapgoung Kong 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: 20250115686
    Abstract: The present invention relates to a solid Ziegler-Natta catalyst component for use in olefin polymerization. The catalyst component comprises magnesium, titanium, halide, one or more dicylopentyldialkoxysilane compounds, one or more dialkylaminotrialkoxysilane compounds, and one or more internal electron donors comprising urea, phthalate and 1,3-diether. The catalyst components, according to present invention, are able to produce polypropylene polymers having high isotacticity with high melt flow rate.
    Type: Application
    Filed: October 9, 2023
    Publication date: April 10, 2025
    Inventors: Gapgoung Kong, Cyrus C.Y. Lee, Chih-Jian Chen
  • Publication number: 20250109223
    Abstract: A method for preparing a Ziegler-Natta catalyst system, especially a phthalate-free catalyst system, with improved performance in propylene polymerization is provided. It is found that catalyst performance, especially catalyst activity and hydrogen response, is significantly improved when a propylene-based pre-polymer is prepared in the presence of a vinyldisilane compound and then used in propylene polymerization.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 3, 2025
    Inventors: Lei ZHANG, Gapgoung Kong, Cyrus C.Y. Lee, Guangxue Xu
  • Publication number: 20250066514
    Abstract: The present invention relates to a Ziegler-Natta catalyst composition for olefin polymerization, which comprises alkyltrialkoxysilane, urea, phthalate and 1,3-diether element as internal electron donors. The catalyst components, according to the present invention, are able to produce polypropylene polymers having high melt flow rate with high isotacticity.
    Type: Application
    Filed: August 24, 2023
    Publication date: February 27, 2025
    Inventors: Gapgoung Kong, Gapgoung Kong, Chih-Jian Chen
  • Publication number: 20250066513
    Abstract: A preparation method to produce a Ziegler-Natta catalyst for olefin polymerization through treatment of MgCl2.xROH adduct with a transition metal halide in the presence of one or more urea compounds in combination with one or more internal electron donors is provided. The catalyst systems, according to present invention, are able to produce polypropylene polymers with higher stereo-regularity. The catalyst systems, according to present invention, are able to produce polypropylene polymers using a phthalate-free catalyst system, with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 27, 2025
    Inventors: Lei Zhang, Gapgoung Kong, Chih-Jian Chen, Cyrus C. Y. Lee, Guangxue Xu
  • Publication number: 20250066520
    Abstract: The present invention relates to a phthalate free propylene-ethylene copolymer having high ethylene content characterized by low hexane extractable and xylene soluble properties, while showing excellent mechanical properties. The preparation of the copolymer is carried out in the presence of a phthalate free catalyst system comprising (a) phthalate free catalyst component obtained by contacting a magnesium halide, a titanium compound having at least a Ti-halogen bond and one or more electron donor compounds comprising urea, a carbonate ether, and a 1,3-diether; (b) an alkyl aluminum compound; and (c) an external electron donor compound.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 27, 2025
    Inventors: Gapgoung Kong, Chih-Jian Chen, Min-Chi Hsieh, Lei Zhang, Cyrus C.Y. Lee
  • Publication number: 20250026868
    Abstract: The present invention relates to a solid Ziegler-Natta catalyst component for olefin polymerization containing an organosilicon element in combination with one or more internal electron donors. The catalyst components, according to the present invention, are able to produce polypropylene polymers with higher stereo-regularity. The present invention also provides a phthalate-free catalyst system capable of producing polypropylene with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.
    Type: Application
    Filed: September 19, 2024
    Publication date: January 23, 2025
    Applicant: Formosa Plastics Corporation, USA
    Inventors: Lei ZHANG, Gapgoung KONG, Chih-Jian CHEN, Guangxue XU
  • Publication number: 20240109988
    Abstract: The present invention provides phthalate free impact resistant polypropylene copolymer and methods of preparation, which are produced directly from the polymerization reactor system without further compounding of components which significantly alters the physical properties of the resulting polymer. The copolymer according to the present invention possesses both low temperature ductility and high flexural modulus, wherein said polymer is produced in the presence of a phthalate free ZN catalyst comprising urea component.
    Type: Application
    Filed: September 12, 2022
    Publication date: April 4, 2024
    Inventors: Gapgoung Kong, Chih-Jian Chen, Min-Chi Hsieh, Lei Zhang, Cyrus C.Y. Lee
  • Publication number: 20240043576
    Abstract: Disclosed is a Ziegler-Natta catalyst composition comprising one or more Ziegler-Natta procatalyst compositions which comprise magnesium, titanium, a halogen, one or more internal electron donors; one or more aluminum containing cocatalysts; optionally one or more stereo-selectivity control agents (SCA); and one or more activity limiting agents (ALA) comprising one or more alkyl-, cycloalkyl- or aryl carbonates and derivatives. Such a Ziegler-Natta catalyst composition exhibits self-limiting catalyst activity in olefin polymerization, particularly propylene polymerization.
    Type: Application
    Filed: August 8, 2022
    Publication date: February 8, 2024
    Inventors: Lei Zhang, Gapgoung Kong, Guangxue Xu, Cyrus C. Y. Lee, Chih-Jian Chen
  • Publication number: 20230143086
    Abstract: The present invention relates to a solid catalyst component comprising magnesium, titanium, halide, and internal electron donor compounds comprising dilakylurea, malonate, succinate, and 1,3-diether, wherein the succinate amount is less than about 30% by mol with respect to the total amount of electron donor, the molar ratio between succinate and 1,3-diether is in the range of about 0.1-0.5, and the molar ratio between malonate and 1,3-diether is in the range of about 0.5-2.5. The catalyst component according to present invention provides highly isotactic polypropylene polymer with broad molecular weight distribution.
    Type: Application
    Filed: November 5, 2021
    Publication date: May 11, 2023
    Inventors: Gapgoung Kong, Lei Zhang, Chih-Jian Chen, Guangxue Xu
  • Publication number: 20230092187
    Abstract: The present invention relates to Ziegler-Natta catalyst components for olefin polymerization employing specific carbonate compounds as an element of solid catalyst composition in conjunction with at least one or more internal donor compounds, for producing polyolefins, particularly polypropylene and ethylene-propylene block co-polymer, which exhibits substantially high rubber content with higher stereo-regularity and hydrogen response.
    Type: Application
    Filed: November 4, 2022
    Publication date: March 23, 2023
    Inventors: Gapgoung Kong, Lei Zhang, Chih-Jian Chen, Demin XU, Guangxue XU
  • Publication number: 20230091516
    Abstract: The present invention relates to a solid Ziegler-Natta catalyst component for olefin polymerization containing an organosilicon element in combination with one or more internal electron donors. The catalyst components, according to the present invention, are able to produce polypropylene polymers with higher stereo-regularity. The present invention also provides a phthalate-free catalyst system capable of producing polypropylene with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.
    Type: Application
    Filed: October 24, 2022
    Publication date: March 23, 2023
    Inventors: Lei Zhang, Gapgoung Kong, Chih-Jian Chen, Guangxue Xu
  • Publication number: 20210102011
    Abstract: The present invention relates to a phthalate free polypropylene homo-polymer having a flexural modulus higher than 290 kpsi with a melt flow rate is greater than 80 g/10 min. The polymer is produced in the presence of phthalate free Ziegler-Natta catalyst containing internal donors comprising at least one of a di-ether and modifier compound. The present invention also includes a process for making the polypropylene homo-polymer according to the present invention.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 8, 2021
    Inventors: Gapgoung Kong, Lei Zhang, Chih-Jian Chen, Guangxue Xu
  • Publication number: 20200354485
    Abstract: The present invention relates to a solid Ziegler-Natta catalyst component for olefin polymerization containing an organosilicon element in combination with one or more internal electron donors. The catalyst components, according to the present invention, are able to produce polypropylene polymers with higher stereo-regularity. The present invention also provides a phthalate-free catalyst system capable of producing polypropylene with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.
    Type: Application
    Filed: May 7, 2019
    Publication date: November 12, 2020
    Inventors: Lei Zhang, Gapgoung Kong, Chih-Jian Chen, Guangxue Xu
  • Patent number: 10822438
    Abstract: Disclosed are a catalyst component for olefin polymerization comprising titanium, magnesium, a halogen, internal donors, in combination with a silane and oxalic acid diamides of the following formula: An olefin polymerization catalyst system consisting of the solid catalyst component, an organoaluminum compound, and an optional external electron donor compound is also disclosed. Employment of both oxalic acid diamides and silane component in the presence of internal electron donors as an elements of solid Ziegler-Natta type catalyst composition enhances stereo-specificity while maintaining excellent catalyst activity and hydrogen response, in which the modified catalyst composition produces polypropylene with good productivity and higher stereo-specificity than catalyst composition without such modification.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: November 3, 2020
    Assignee: Formosa Plastics Corporation
    Inventors: Gapgoung Kong, Lei Zhang, Chih-Jian Chen, Yiqun Fang, Demin Xu, Guangxue Xu
  • Publication number: 20200316575
    Abstract: The present invention relates to Ziegler-Natta catalyst components for olefin polymerization employing specific carbonate compounds as an element of solid catalyst composition in conjunction with at least one or more internal donor compounds, for producing polyolefins, particularly polypropylene and ethylene-propylene block co-polymer, which exhibits substantially high rubber content with higher stereo-regularity and hydrogen response.
    Type: Application
    Filed: April 4, 2019
    Publication date: October 8, 2020
    Inventors: Gapgoung Kong, Lei Zhang, Chih-Jian Chen, Demin Xu, Guangxue Xu
  • Publication number: 20180327520
    Abstract: Disclosed are a catalyst component for olefin polymerization comprising titanium, magnesium, a halogen, internal donors, in combination with a silane and oxalic acid diamides of the following formula: An olefin polymerization catalyst system consisting of the solid catalyst component, an organoaluminum compound, and an optional external electron donor compound is also disclosed. Employment of both oxalic acid diamides and silane component in the presence of internal electron donors as an elements of solid Ziegler-Natta type catalyst composition enhances stereo-specificity while maintaining excellent catalyst activity and hydrogen response, in which the modified catalyst composition produces polypropylene with good productivity and higher stereo-specificity than catalyst composition without such modification.
    Type: Application
    Filed: May 9, 2017
    Publication date: November 15, 2018
    Inventors: Gapgoung Kong, Lei Zhang, Chih-Jian Chen, Yiqun Fang, Demin Xu, Guangxue Xu
  • Publication number: 20180326407
    Abstract: The present invention relates to a Ziegler-Natta catalyst component for olefin polymerization containing an amide element in combination with one or more internal electron donors. The catalyst components, according to the present invention, are able to produce polypropylene polymers with higher stereo-regularity. The present invention also provides a phthalate-free catalyst system capable of producing polypropylene with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.
    Type: Application
    Filed: May 9, 2017
    Publication date: November 15, 2018
    Inventors: Gapgoung Kong, Lei Zhang, Demin Xu, Yiqun Fang, Chih-Jian Chen
  • Patent number: 10124324
    Abstract: The present invention relates to a Ziegler-Natta catalyst component for olefin polymerization containing an amide element in combination with one or more internal electron donors. The catalyst components, according to the present invention, are able to produce polypropylene polymers with higher stereo-regularity. The present invention also provides a phthalate-free catalyst system capable of producing polypropylene with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: November 13, 2018
    Assignee: Formosa Plastics Corporation, USA
    Inventors: Gapgoung Kong, Lei Zhang, Demin Xu, Yiqun Fang, Chih-Jian Chen
  • Patent number: 9815920
    Abstract: The present invention relates to a Ziegler-Natta catalyst component for olefin polymerization containing a urea element in combination with one or more internal electron donors. The catalyst components are able to produce polypropylene polymers with higher stereo-regularity. The present invention also provides phthalate-free catalyst system capable of producing polypropylene with an isotacticity that is equal to or higher than catalyst systems containing phthalate derivatives.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: November 14, 2017
    Assignee: Formosa Plastics Corporation, USA
    Inventors: Gapgoung Kong, Lei Zhang, Demin Xu, Yiqun Fang, Chih-Jian Chen
  • Patent number: 9777084
    Abstract: A phthalate-free catalyst component for olefin polymerization comprising titanium, magnesium, a halogen, diether, and oxalic acid diamides represented by the following formula (I): and an olefin polymerization catalyst system consisting of the solid catalyst component, an organoaluminum compound, and an optional external electron donor compound. The present catalyst compositions improve diether-based catalyst selectivity while maintaining excellent catalyst activity and hydrogen response. An olefin polymer that has a moderate molecular weight distribution while maintaining higher stereoregularity (isotacticity) over diether-based catalyst, and better than or equal to phthalate-based catalyst can be produced by utilizing the inventive catalyst component.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 3, 2017
    Assignee: Formosa Plastics Corporation, USA
    Inventors: Lei Zhang, Gapgoung Kong, Chih-Jian Chen, Demin Xu, Yiqun Fang, Guangxue Xu