Patents by Inventor Xiangyum GUO

Xiangyum GUO 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).

  • POLYALKYL P-PHENYLENEDIAMINE ANTI-DEGRADANTS AND INTERMEDIATES AND PREPARATION METHOD THEREOF
    Publication number: 20240174593
    Abstract: A polyalkyl p-phenylenediamine antidegradant having a structure represented by Formula I, its intermediates and a preparation method thereof are provided. The polyalkyl p-phenylenediamine antidegradant provides good thermal oxidative aging resistance and UV aging resistance.
    Type: Application
    Filed: October 27, 2023
    Publication date: May 30, 2024
    Inventors: Jinguo XING, Xiangyum GUO, Gan LIANG, Jiaqiang ZHANG, Zhimin TANG