Patents by Inventor Min-Chi Hsieh

Min-Chi Hsieh 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).

  • High Ductility, High Modulus and Phthalate Free Impact Resistant Propylene Copolymer
    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