Patents by Inventor Chuncai ZHU

Chuncai ZHU 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).

  • POLYAMIDE-IMIDE COPOLYMER FILM, PREPARATION METHOD THEREOF AND FLEXIBLE DISPLAY
    Publication number: 20240101822
    Abstract: This application proposes a polyamide-imide copolymer film and a flexible display. The polyamide-imide copolymer film is obtained by copolymerizing aromatic dianhydride and aromatic dicarbonyl compound with aromatic diamine. Wherein, the aromatic dicarbonyl compounds include fluorinated aromatic dicarbonyl compound and non-fluorinated aromatic dicarbonyl compound. The polyamide-imide copolymer film can obtain a very low yellow degree index and dual refractive index, which is suitable for the substrate production of flexible display.
    Type: Application
    Filed: March 7, 2023
    Publication date: March 28, 2024
    Applicant: ZHEJIANG OCAS NEW MATERIALS CO., LTD.
    Inventors: Qun ZHANG, Chuncai ZHU, Tao HU, Guolong LIU, Zhe XU