Patents Assigned to ZHEJIANG OCAS NEW MATERIALS CO., LTD.
  • 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