Patents by Inventor Yaoyun GUO

Yaoyun 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).

  • POLYISOCYANATE COMPOSITION, PREPARATION METHOD THEREFOR AND APPLICATION THEREOF
    Publication number: 20230374194
    Abstract: A polyisocyanate composition, a preparation method therefor and an application thereof. The value of the mass content of alkaline hydrolyzed chlorine minus the mass content of water hydrolyzed chlorine in the polyisocyanate composition is 0.1 ppm-100 ppm. The mass content of the alkaline hydrolyzed chlorine is the mass content obtained by calculating halogen dissociated under alkaline conditions and/or halogen dissociated under a temperature condition of 100° C. or more as the relative atomic mass of a chlorine atom.
    Type: Application
    Filed: December 1, 2020
    Publication date: November 23, 2023
    Inventors: Yong YU, Xuelei CUI, Yaoyun GUO, Yonghua SHANG, Jinping HAN, WenBin LI, Degang LIU, Yuan LI