Patents by Inventor Zenghui YANG

Zenghui YANG 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).

  • Self-healing polyurethane (PU) material, double-layer self-healing PU film, and preparation method and use thereof
    Patent number: 11965076
    Abstract: Provided are a self-healing polyurethane (PU) material, a double-layer self-healing PU film, and a preparation method and use thereof. In the disclosure, the self-healing PU material includes a PU material I and a PU material II that are packaged separately. A soft-layer PU film prepared based on the PU material I and a hard-layer PU film prepared based on the PU material II could be combined to form a double-layer PU film.
    Type: Grant
    Filed: April 25, 2023
    Date of Patent: April 23, 2024
    Assignee: Lanzhou Institute of Chemical Physics, CAS
    Inventors: Xinrui Zhang, Jing Xu, Xiaoyue Wang, Zenghui Yang, Yaoming Zhang, Qihua Wang, Tingmei Wang
  • SELF-HEALING POLYURETHANE (PU) MATERIAL, DOUBLE-LAYER SELF-HEALING PU FILM, AND PREPARATION METHOD AND USE THEREOF
    Publication number: 20230407025
    Abstract: Provided are a self-healing polyurethane (PU) material, a double-layer self-healing PU film, and a preparation method and use thereof In the disclosure, the self-healing PU material includes a PU material I and a PU material II that are packaged separately. A soft-layer PU film prepared based on the PU material I and a hard-layer PU film prepared based on the PU material II could be combined to form a double-layer PU film.
    Type: Application
    Filed: April 25, 2023
    Publication date: December 21, 2023
    Inventors: Xinrui ZHANG, Jing XU, Xiaoyue WANG, Zenghui YANG, Yaoming ZHANG, Qihua WANG, Tingmei WANG
  • Chain extender, preparation method and application thereof, recyclable thermosetting polyurethane and preparation method thereof
    Patent number: 11780951
    Abstract: The present disclosure belongs to the technical field of polymer materials, and in particular relates to a chain extender and a preparation method and application thereof, a recyclable thermosetting polyurethane and a preparation method thereof. The present disclosure provides a chain extender whose chemical formula is shown in formula I. The chain extender provided by the present disclosure contains two types of dynamic covalent bonds, and the total number of dynamic covalent bonds is 4. The thermosetting polyurethane prepared by the provided chain extender has better hot-pressing repair efficiency. The results of the examples show that under the same hot-pressing conditions, the repair efficiency of the thermosetting polyurethane prepared by the 4,4?-dithiodianiline chain extender is 59%. The repair efficiency of thermosetting polyurethane is 97%, which is significantly improved.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: October 10, 2023
    Assignee: Lanzhou Institute of Chemical Physics
    Inventors: Xinrui Zhang, Xiaoyue Wang, Zenghui Yang, Yaoming Zhang, Qihua Wang, Tingmei Wang
  • CHAIN EXTENDER, PREPARATION METHOD AND APPLICATION THEREOF, RECYCLABLE THERMOSETTING POLYURETHANE AND PREPARATION METHOD THEREOF
    Publication number: 20220372206
    Abstract: The present disclosure belongs to the technical field of polymer materials, and in particular relates to a chain extender and a preparation method and application thereof, a recyclable thermosetting polyurethane and a preparation method thereof. The present disclosure provides a chain extender whose chemical formula is shown in formula I. The chain extender provided by the present disclosure contains two types of dynamic covalent bonds, and the total number of dynamic covalent bonds is 4. The thermosetting polyurethane prepared by the provided chain extender has better hot-pressing repair efficiency. The results of the examples show that under the same hot-pressing conditions, the repair efficiency of the thermosetting polyurethane prepared by the 4,4?-dithiodianiline chain extender is 59%. The repair efficiency of thermosetting polyurethane is 97%, which is significantly improved.
    Type: Application
    Filed: January 27, 2022
    Publication date: November 24, 2022
    Inventors: Xinrui ZHANG, Xiaoyue WANG, Zenghui YANG, Yaoming ZHANG, Qihua WANG, Tingmei WANG