Patents by Inventor ZULIANG SHEN

ZULIANG SHEN 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 aromatic polyamide porous membrane and aromatic polyamide porous membrane prepared thereby
    Patent number: 11205821
    Abstract: The present invention provides a method for preparing an aromatic polyamide porous membrane and an aromatic polyamide porous membrane prepared by the above method. The method for preparing an aromatic polyamide porous membrane includes the following steps: mixing an ionic liquid with an aromatic polyamide into a solvent to form a mixed solution; the mixed solution forming a membrane in a coagulation bath; and extracting with an extractant to remove the solvent and the ionic liquid from the membrane to yield a porous membrane. In the method of the present invention, the application of the ionic liquid would greatly reduce the application of additives; further, the ionic liquid has a high stability and is easy to be separated from other solvents and be recycled, which assures the safety during the usage and recycle thereof.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: December 21, 2021
    Assignee: MICROVAST POWER SYSTEMS CO., LTD.
    Inventors: Qingjin Sun, Dawei Shen, Zuliang Shen, Hui Wu, Xiang Li
  • METHOD FOR PREPARING AROMATIC POLYAMIDE POROUS MEMBRANE AND AROMATIC POLYAMIDE POROUS MEMBRANE PREPARED THEREBY
    Publication number: 20190097196
    Abstract: The present invention provides a method for preparing an aromatic polyamide porous membrane and an aromatic polyamide porous membrane prepared by the above method. The method for preparing an aromatic polyamide porous membrane includes the following steps: mixing an ionic liquid with an aromatic polyamide into a solvent to form a mixed solution; the mixed solution forming a membrane in a coagulation bath; and extracting with an extractant to remove the solvent and the ionic liquid from the membrane to yield a porous membrane. In the method of the present invention, the application of the ionic liquid would greatly reduce the application of additives; further, the ionic liquid has a high stability and is easy to be separated from other solvents and be recycled, which assures the safety during the usage and recycle thereof.
    Type: Application
    Filed: January 5, 2017
    Publication date: March 28, 2019
    Inventors: QINGJIN SUN, DAWEI SHEN, ZULIANG SHEN, HUI WU, XIANG LI