Patents by Inventor Yangmin MA

Yangmin MA 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).

  • Leather finishing agent and preparation method thereof
    Patent number: 11981969
    Abstract: A leather finishing agent that can enhance the mechanical properties and ultraviolet resistance of leather and a preparation method thereof are disclosed that relate to the field of leather additives. It was prepared by using polyphenol as raw material, hexamethylene tetramine as auxiliary agent, and a protonic acid as solvent, then heating and adding water for hydrolysis and dispersion. The method has the advantages of low production cost, simple process, high preparation efficiency, green production process and environmental protection. The leather finishing agent can be used in the finishing section after leather tanning. After finishing, the mechanical properties of the leather were significantly enhanced, and its UV resistance was also significantly improved.
    Type: Grant
    Filed: May 12, 2021
    Date of Patent: May 14, 2024
    Assignee: Shaanxi University of Science & Technology
    Inventors: Taotao Qiang, Linxin Guo, Yangmin Ma, Tingting Dai
  • Leather Finishing Agent and Preparation Method Thereof
    Publication number: 20220064743
    Abstract: A leather finishing agent that can enhance the mechanical properties and ultraviolet resistance of leather and a preparation method thereof are disclosed that relate to the field of leather additives. It was prepared by using polyphenol as raw material, hexamethylene tetramine as auxiliary agent, and a protonic acid as solvent, then heating and adding water for hydrolysis and dispersion. The method has the advantages of low production cost, simple process, high preparation efficiency, green production process and environmental protection. The leather finishing agent can be used in the finishing section after leather tanning. After finishing, the mechanical properties of the leather were significantly enhanced, and its UV resistance was also significantly improved.
    Type: Application
    Filed: May 12, 2021
    Publication date: March 3, 2022
    Inventors: Taotao QIANG, Linxin GUO, Yangmin MA, Tingting DAI