Patents by Inventor Danxia CHEN

Danxia CHEN 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).

  • Preparation method of zeolite/polyimide composite membrane and applications thereof
    Patent number: 11926707
    Abstract: A preparation method of a zeolite/polyimide composite membrane includes: synthesizing a zeolite-doped polyamic acid precursor casting solution by condensation polymerization synthesis; coating a substrate with the obtained casting solution, and obtaining a zeolite/polyamic acid composite porous membrane by non-solvent induced phase separation; and obtaining the zeolite/polyimide composite membrane by performing thermal imidization on the zeolite/polyamic acid composite porous membrane through gradient heating.
    Type: Grant
    Filed: November 26, 2020
    Date of Patent: March 12, 2024
    Assignee: WUHAN UNIVERSITY OF TECHNOLOGY
    Inventors: Xiang Wang, Danxia Chen, Yanling Li, Jun Wang, Xiaoli Yang, Huajun Duan
  • ALUMINUM BORATE WHISKER REINFORCED AND TOUGHENED NON-METALLIC MATRIX COMPOSITE
    Publication number: 20240067782
    Abstract: An aluminum borate whisker reinforced and toughened non-metallic matrix composite is provided, which specifically includes a non-metallic material reinforced and toughened with aluminum borate whiskers. The composite exhibits a higher bending strength and fracture toughness and a higher wear resistance. A method for preparing the composite is also provided. The method includes mixing the aluminum borate whiskers and the non-metallic material to form a mixture; and sintering the mixture by a vacuum hot press method, or molding the mixture.
    Type: Application
    Filed: November 6, 2023
    Publication date: February 29, 2024
    Inventors: Yue Shi, Bi Jia, Jinliang Shi, Zhigang Zou, Yong Zhou, Yongjiang Di, Yin Liu, Huichao He, Rong Wang, Xueyi Wang, Hao Tian, Jun Zhu, Rui Tang, Xingyu Chen, Danxia Zhang
  • PREPARATION METHOD OF ZEOLITE/POLYIMIDE COMPOSITE MEMBRANE AND APPLICATIONS THEREOF
    Publication number: 20210155756
    Abstract: A preparation method of a zeolite/polyimide composite membrane includes: synthesizing a zeolite-doped polyamic acid precursor casting solution by condensation polymerization synthesis; coating a substrate with the obtained casting solution, and obtaining a zeolite/polyamic acid composite porous membrane by non-solvent induced phase separation; and obtaining the zeolite/polyimide composite membrane by performing thermal imidization on the zeolite/polyamic acid composite porous membrane through gradient heating.
    Type: Application
    Filed: November 26, 2020
    Publication date: May 27, 2021
    Inventors: Xiang WANG, Danxia CHEN, Yanling LI, Jun WANG, Xiaoli YANG, Huajun DUAN