Patents by Inventor Yuxiong Guo

Yuxiong Guo 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).

  • Publication number: 20200009784
    Abstract: A method for preparing a direct-writing polyimide additive manufacturing (AM) material includes (1) conducting ultraviolet curing immediately after the photosensitive polyimide ink is subjected to direct-writing extrusion, to obtain a polyimide precursor formed member; and (2) heat-treating the polyimide precursor formed member obtained in step (1) to obtain the direct-writing polyimide AM material. The direct-writing polyimide AM material obtained by using the method of the present invention has excellent comprehensive properties.
    Type: Application
    Filed: January 23, 2019
    Publication date: January 9, 2020
    Inventors: Xiaolong Wang, Yuxiong Guo, Changyou Yan, Zhilu Liu, Feng Zhou
  • Publication number: 20190169450
    Abstract: The present invention relates to the field of 3D printing technology, and provides a photocurable 3D printing polyimide ink, and a preparation method and application thereof. The photocurable 3D printing polyimide ink includes the following components in the following weight percentages: 40 to 60% of a photocurable polyamic acid, 5 to 40% of an organic solvent, 10 to 50% of a reactive diluent, 1 to 10% of a chain extender, and 1 to 3% of a photoinitiator. The photocurable 3D printing polyimide ink provided by the present invention has excellent mechanical properties, thermal stability, relatively high printing accuracy and relatively low shrinkage; a molded device obtained by 3D printing has excellent properties including high accuracy, great dimensional stability, high strength and corrosion resistance, excellent flexibility, high temperature resistance and relatively low shrinkage. The method for preparing the photocurable 3D printing polyimide ink has a simple process and lower energy consumption.
    Type: Application
    Filed: April 2, 2018
    Publication date: June 6, 2019
    Inventors: Xiaolong Wang, Yuxiong Guo, Xiaoqin Zhang, Zhengfeng Ma, Pan Jiang, Feng Zhou