Patents by Inventor Xianlin LEI

Xianlin LEI 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).

  • Preparation method for biomass-based hyperbranched adsorption material
    Patent number: 11731104
    Abstract: The invention provides a biomass-based hyperbranched adsorption material with multi-adsorption sites to multiple heavy metal ions and a preparation method thereof. The biomass-based hyperbranched adsorption material with multi-adsorption sites to multiple heavy metal ions is prepared by one-step instant-crosslinking method using a biomass raw material as matrix and a hyperbranched polymer containing chelating atoms of N, O, and S as functional reagent, wherein the hyperbranched polymer has two or more different adsorption sites (containing elements such as N, S, O, etc.) to heavy metal ions.
    Type: Grant
    Filed: August 12, 2021
    Date of Patent: August 22, 2023
    Assignee: GUANGXI UNIVERSITY
    Inventors: Hongxiang Zhu, Hui He, Lei Wang, Fei Xue, Xianlin Lei
  • BIOMASS-BASED HYPERBRANCHED ADSORPTION MATERIAL WITH MULTI-ADSORPTION SITES TO MULTIPLE HEAVY METAL IONS AND PREPARATION METHOD THEREOF
    Publication number: 20220395808
    Abstract: The invention provides a biomass-based hyperbranched adsorption material with multi-adsorption sites to multiple heavy metal ions and a preparation method thereof. The biomass-based hyperbranched adsorption material with multi-adsorption sites to multiple heavy metal ions is prepared by one-step instant-crosslinking method using a biomass raw material as matrix and a hyperbranched polymer containing chelating atoms of N, O, and S as functional reagent, wherein the hyperbranched polymer has two or more different adsorption sites (containing elements such as N, S, O, etc.) to heavy metal ions.
    Type: Application
    Filed: August 12, 2021
    Publication date: December 15, 2022
    Applicant: GUANGXI UNIVERSITY
    Inventors: Hongxiang ZHU, Hui HE, Lei WANG, Fei XUE, Xianlin LEI