Patents by Inventor Zhengjun FU

Zhengjun FU 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).

  • Dual-layer membrane and method for preparing same
    Patent number: 11850555
    Abstract: A dual-layer membrane and a method for preparing thereof. By adding a modifying monomer containing an active group and a characteristic group to a dope solution or spinning solution during the preparation of the dual-layer membrane, the grafting reaction occurs between the active group of the monomer and the polymer in the dope solution or spinning solution, and the intermolecular interaction with other polymers is enhanced by the characteristic group of the monomer, to improve the miscibility between the polymers. The method is suitable for preparing both a dual-layer flat sheet membrane and a dual-layer hollow fiber membrane, and can realize the preparation of a dual-layer membrane with an interpenetrated structure at the interface under mild preparation conditions.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: December 26, 2023
    Assignee: NANJING TECH UNIVERSITY
    Inventors: Shipeng Sun, Zhenyuan Wang, Zhengjun Fu, Mengmeng Tang, Dandan Shao, Weihong Xing
  • DUAL-LAYER MEMBRANE AND METHOD FOR PREPARING SAME
    Publication number: 20210308627
    Abstract: A dual-layer membrane and a method for preparing thereof. By adding a modifying monomer containing an active group and a characteristic group to a dope solution or spinning solution during the preparation of the dual-layer membrane, the grafting reaction occurs between the active group of the monomer and the polymer in the dope solution or spinning solution, and the intermolecular interaction with other polymers is enhanced by the characteristic group of the monomer, to improve the miscibility between the polymers. The method is suitable for preparing both a dual-layer flat sheet membrane and a dual-layer hollow fiber membrane, and can realize the preparation of a dual-layer membrane with an interpenetrated structure at the interface under mild preparation conditions.
    Type: Application
    Filed: March 31, 2021
    Publication date: October 7, 2021
    Applicant: NANJING TECH UNIVERSITY
    Inventors: Shipeng SUN, Zhenyuan WANG, Zhengjun FU, Mengmeng TANG, Dandan SHAO, Weihong XING