Patents by Inventor Hou Hsi Wu

Hou Hsi Wu 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: 20230212431
    Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer composition, a single-layer film and a multilayer structure containing the same. Said ethylene-vinyl alcohol copolymer composition includes an ethylene-vinyl alcohol copolymer, an antioxidant, and a fluorine-containing compound; and the ratio of the antioxidant content to the fluorine content is 0.5 to 65. Thereby, the film containing said ethylene-vinyl alcohol copolymer composition not only has good heat resistance, but also can avoid the situation that a large number of gels are generated during the preparation process.
    Type: Application
    Filed: June 30, 2022
    Publication date: July 6, 2023
    Inventors: Shih Yuan Su, Hou Hsi Wu
  • Patent number: 11566091
    Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The core height difference (Sk) of the surface of the EVOH resin composition is between 0.6 and 2.0 ?m, and the overall standard deviation of Sk is between 0.05 and 0.55. The invention can reduce the torque output during processing to achieve the effect of energy saving, and can also improve the stability during output to obtain a better film appearance.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: January 31, 2023
    Assignee: CHANG CHUN PETROCHEMICAL CO., LTD.
    Inventors: Yu Hsiu Li, Hou Hsi Wu, Wen Hsin Lin
  • Publication number: 20220403078
    Abstract: The present invention relates to an ethylene-vinyl alcohol copolymer (EVOH) resin composition, an EVOH film formed therefrom, and a multilayer structure containing the same. The core height difference (Sk) of the surface of the EVOH resin composition is between 0.6 and 2.0 ?m, and the overall standard deviation of Sk is between 0.05 and 0.55. The invention can reduce the torque output during processing to achieve the effect of energy saving, and can also improve the stability during output to obtain a better film appearance.
    Type: Application
    Filed: March 22, 2022
    Publication date: December 22, 2022
    Inventors: Yu Hsiu LI, Hou Hsi WU, Wen Hsin LIN
  • Patent number: 11512196
    Abstract: The instant disclosure relates to a fluorine-containing ethylene-vinyl alcohol copolymer (EVOH) resin composition as well as mixture and blend thereof. The fluorine-containing EVOH resin composition comprises EVOH and fluorine-containing particles, wherein the fluorine-containing EVOH resin composition has a total fluoride ion content ranging from 45 to 41000 ppm. The invention can reduce the adhesion of EVOH to the inside of the extruder, and effectively reduce the appearance of gel or gelled substance in subsequent finished products.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: November 29, 2022
    Assignee: CHANG CHUN PETROCHEMICAL CO., LTD.
    Inventors: Hou Hsi Wu, Yu Hsiu Li, Wen Hsin Lin
  • Publication number: 20210198470
    Abstract: The instant disclosure relates to a fluorine-containing ethylene-vinyl alcohol copolymer (EVOH) resin composition as well as mixture and blend thereof. The fluorine-containing EVOH resin composition comprises EVOH and fluorine-containing particles, wherein the fluorine-containing EVOH resin composition has a total fluoride ion content ranging from 45 to 41000 ppm. The invention can reduce the adhesion of EVOH to the inside of the extruder, and effectively reduce the appearance of gel or gelled substance in subsequent finished products.
    Type: Application
    Filed: December 28, 2020
    Publication date: July 1, 2021
    Inventors: Hou Hsi WU, Yu Hsiu LI, Wen Hsin LIN
  • Patent number: 10982084
    Abstract: The instant disclosure relates to ethylene vinyl alcohol copolymer resin composition and/or pellets thereof including one or more fluorine-containing micro-particles. The ethylene vinyl alcohol copolymer resin compositions and/or pellets thereof may have a melting pressure of 1.7 to 7.0 MPa at a shear rate of 20 s?1 and a melting point temperature of 190° C. EVOH films formed from the EVOH may have a Charpy impact strength of at least 2.3 KJ/m2 according to ISO 179-1 at 23° C. and an elongation at break of at least 17.8% according to ISO 527-2 at 23° C.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: April 20, 2021
    Assignee: CHANG CHUN PETROCHEMICAL CO., LTD.
    Inventors: Hou Hsi Wu, Shih Yuan Su
  • Patent number: 10961375
    Abstract: The instant disclosure relates to ethylene vinyl alcohol copolymer resin composition and/or pellets thereof including one or more fluorine-containing micro-particles. The ethylene vinyl alcohol copolymer resin composition and/or pellets thereof may have a boron content of 10 to 450 ppm. EVOH films formed from the EVOH may have a Charpy impact strength of at least 2.5 KJ/m2 according to ISO 179-1 at 23° C. and an elongation at break of at least 18.2% according to ISO 527-2 at 23° C.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: March 30, 2021
    Assignee: CHANG CHUN PETROCHEMICAL CO., LTD.
    Inventors: Hou Hsi Wu, Yu Hsiu Li
  • Patent number: 10711124
    Abstract: The instant disclosure relates to ethylene vinyl alcohol pellets including one or more fluorine-containing micro-particles having a particle size that is not greater than 20 ?m. The EVOH films formed from the EVOH pellets may have a Charpy impact strength of at least 2.45 KJ/m2 according to ISO 179-1 at 23° C. and an elongation at break of at least 17.8% according to ISO 527-2 at 23° C.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: July 14, 2020
    Assignee: CHANG CHUN PETROCHEMICAL CO., LTD.
    Inventors: Hou Hsi Wu, Wen Hsin Lin