Patents by Inventor Xiangqiang PAN

Xiangqiang PAN 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).

  • Method for preparing vinyl ether polymer by photo-initiated polymerization
    Patent number: 11498984
    Abstract: The invention relates to a method for preparing a vinyl ether polymer by photo-initiated polymerization, which comprises the step of: under a protective atmosphere, performing photo-initiated polymerization on a vinyl ether monomer in the presence of an organic halogenated hydrocarbon and manganese carbonyl under irradiation of light having a wavelength of 365-550 nm at ?25° C. to 25° C., to obtain a vinyl ether polymer after the reaction is completed. In the method, a vinyl ether monomer is subjected to cationic polymerization in the presence of manganese carbonyl and an organic halogenated hydrocarbon under visible light, to prepare a vinyl ether polymer with controlled molecular weight and narrow molecular weight distribution.
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: November 15, 2022
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Jian Zhu, Xiaofei Huang, Jiajia Li, Na Li, Xiangqiang Pan, Xiulin Zhu
  • METHOD FOR PREPARING VINYL ETHER POLYMER BY PHOTO-INITIATED POLYMERIZATION
    Publication number: 20210371556
    Abstract: The invention relates to a method for preparing a vinyl ether polymer by photo-initiated polymerization, which comprises the step of: under a protective atmosphere, performing photo-initiated polymerization on a vinyl ether monomer in the presence of an organic halogenated hydrocarbon and manganese carbonyl under irradiation of light having a wavelength of 365-550 nm at ?25° C. to 25° C., to obtain a vinyl ether polymer after the reaction is completed. In the method, a vinyl ether monomer is subjected to cationic polymerization in the presence of manganese carbonyl and an organic halogenated hydrocarbon under visible light, to prepare a vinyl ether polymer with controlled molecular weight and narrow molecular weight distribution.
    Type: Application
    Filed: September 25, 2019
    Publication date: December 2, 2021
    Inventors: Jian ZHU, Xiaofei HUANG, Jiajia LI, Na LI, Xiangqiang PAN, Xiulin ZHU