Patents by Inventor Yun Jia Xia

Yun Jia Xia 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).

  • OLEOPHOBIC FLUOROPOLYMERS AND FIBROUS MATERIALS PREPARED THEREFROM
    Publication number: 20230025277
    Abstract: The disclosure provides a process for preparing an oleophobic fluoropolymer emulsion. The resulting fluoropolymer emulsion has excellent hydrophobic and oleophobic modification ability (as coatings) on polyester fibers such as polyester (PET), polypropylene (PP) and woven and nonwoven fabrics. Accordingly, the woven and nonwoven materials so coated are useful in venting filter applications.
    Type: Application
    Filed: June 22, 2022
    Publication date: January 26, 2023
    Inventors: Mei Feng He, Dongzhu Wu, Yun Jia Xia, Kwork-Shun Cheng
  • OLEOPHOBIC FLUOROPOLYMERS AND FILTER MATERIALS PREPARED THEREFROM
    Publication number: 20230026572
    Abstract: The disclosure provides an improved process for preparing oleophobic fluoropolymers. The resulting fluropolymers were found to be effective in imparting hydrophobic and oleophobic properties to porous polymeric membranes such as PTFE. The treated PTFE membrane can reach an oleophobic level of 6 or above, (according to the AATCC-118-1997 oil repellency test method) with a low air flux loss.
    Type: Application
    Filed: June 22, 2022
    Publication date: January 26, 2023
    Inventors: Mei Feng He, Dongzhu Wu, Yun Jia Xia, Kwokshun Cheng