Patents by Inventor Guizhou Xu

Guizhou Xu 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).

  • Cyclodextrin polymer for fast absorption of organic pollutants dissolved in water
    Patent number: 11339227
    Abstract: Provided is a novel multifunctional cyclodextrin polymer capable of adsorbing the organic pollutants dissolved in water super-fast. A cyclodextrin polymer with a three-dimensional network structure and quaternary ammonium salt functional groups is obtained by mixing and crosslinking a cyclodextrin, a rigid crosslinking agent, a non-rigid crosslinking agent and a quaternary ammonium salt at certain temperature. The polymer is capable of adsorbing the organic pollutants dissolved in water at an ultra-fast rate, and the polymer after adsorption is easily regenerated and can be repeatedly used multiple times without causing a decrease in the adsorption property.
    Type: Grant
    Filed: November 14, 2019
    Date of Patent: May 24, 2022
    Inventors: Xianchuan Xie, Xuejiao Hu, Guizhou Xu
  • NOVEL CYCLODEXTRIN POLYMER FOR FAST ABSORPTION OF ORGANIC POLLUTANTS DISSOLVED IN WATER
    Publication number: 20210179739
    Abstract: Provided is a novel multifunctional cyclodextrin polymer capable of adsorbing the organic pollutants dissolved in water super-fast. A cyclodextrin polymer with a three-dimensional network structure and quaternary ammonium salt functional groups is obtained by mixing and crosslinking a cyclodextrin, a rigid crosslinking agent, a non-rigid crosslinking agent and a quaternary ammonium salt at certain temperature. The polymer is capable of adsorbing the organic pollutants dissolved in water at an ultra-fast rate, and the polymer after adsorption is easily regenerated and can be repeatedly used multiple times without causing a decrease in the adsorption property.
    Type: Application
    Filed: November 14, 2019
    Publication date: June 17, 2021
    Inventors: Xianchuan XIE, Xuejiao HU, Guizhou XU
  • Cyclodextrin polymer with ultra-fast adsorption performance
    Patent number: 10982014
    Abstract: A novel cyclodextrin polymer with ultra-fast adsorption performance is provided. A cyclodextrin polymer having a three-dimensional network structure is obtained by mixing and crosslinking a cyclodextrin with a rigid crosslinking agent and a non-rigid crosslinking agent at a certain temperature. The polymer is capable of adsorbing a plurality of organic pollutants in water at an ultra-fast rate, and the polymer after adsorption is easily regenerated by simple washing at a normal temperature, and is repeatedly used without causing a decrease in adsorption performance.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: April 20, 2021
    Assignee: NANJING UNIVERSITY
    Inventors: Xianchuan Xie, Guizhou Xu, Long Qin
  • NOVEL CYCLODEXTRIN POLYMER WITH ULTRA-FAST ADSORPTION PERFORMANCE
    Publication number: 20190375858
    Abstract: A novel cyclodextrin polymer with ultra-fast adsorption performance is provided. A cyclodextrin polymer having a three-dimensional network structure is obtained by mixing and crosslinking a cyclodextrin with a rigid crosslinking agent and a non-rigid crosslinking agent at a certain temperature. The polymer is capable of adsorbing a plurality of organic pollutants in water at an ultra-fast rate, and the polymer after adsorption is easily regenerated by simple washing at a normal temperature, and is repeatedly used without causing a decrease in adsorption performance.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 12, 2019
    Inventors: Xianchuan Xie, Guizhou Xu, Long Qin