Patents by Inventor Yibo Ma

Yibo 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).

  • Method to convert mechanical pulp derived waste material into value added cellulose products
    Patent number: 11486094
    Abstract: According to an example aspect of the present invention, there is provided a process for the conversion of cellulosic waste material into a recycled cellulose product comprising the steps of cooking the waste material in a cooking liquor to remove lignin from the waste material and provide a delignified pulp, dissolving the delignified pulp in an ionic liquid to provide a spinning dope suitable for dry jet-wet spinning in an ionic liquid solution, and subjecting the spinning dope to a further processing step to provide a recycled cellulose product, said further step selected from the group of spinning cellulose fibers for use in textiles from the solution, extruding a film product for use in packaging, regenerating the dope as a hydrogel and regenerating the dope as an aerogel.
    Type: Grant
    Filed: February 1, 2018
    Date of Patent: November 1, 2022
    Assignee: Aalto University Foundation sr
    Inventors: Herbert Sixta, Yibo Ma, Michael Hummel
  • Method to convert mechanical pulp derived waste material into value added cellulose products
    Publication number: 20190376236
    Abstract: According to an example aspect of the present invention, there is provided a process for the conversion of cellulosic waste material into a recycled cellulose product comprising the steps of cooking the waste material in a cooking liquor to remove lignin from the waste material and provide a delignified pulp, dissolving the delignified pulp in an ionic liquid to provide a spinning dope suitable for dry jet-wet spinning in an ionic liquid solution, and subjecting the spinning dope to a further processing step to provide a recycled cellulose product, said further step selected from the group of spinning cellulose fibers for use in textiles from the solution, extruding a film product for use in packaging, regenerating the dope as a hydrogel and regenerating the dope as an aerogel.
    Type: Application
    Filed: February 1, 2018
    Publication date: December 12, 2019
    Inventors: Herbert Sixta, Yibo Ma, Michael Hummel