Patents by Inventor Shengen CHEN

Shengen CHEN 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).

  • Lignocellulose nanofibril material, stable foam system based thereon, preparation method and application thereof
    Patent number: 11339254
    Abstract: A lignocellulose nanofibril material, a stable foam system based thereon, a preparation method and an application thereof are provided. The lignocellulosic nanofibril material includes the following components: 0.5-20 wt % of wood flour, 0.1-10 wt % of (2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl, 2-25 mmol/g of an oxidant, 6-15 wt % of NaBr, and the remaining is water. The stable foam system based on the lignocellulosic nanofibril material includes: 0.1-1.0 wt % of the lignocellulosic nanofibril material, 0.2-1.0 wt % of a surfactant, 0.1-10 wt % of sodium chloride, 0.1-1.0 wt % of calcium chloride, 0.1-1.0 wt % of magnesium chloride, 0.1-1.0 wt % of sodium sulfate, and a balance of water.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: May 24, 2022
    Assignees: SOUTHWEST PETROLEUM UNIVERSITY, TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Bing Wei, Yangbing Wen, Yuanyuan Wang, Wanfen Pu, Shengen Chen
  • LIGNOCELLULOSE NANOFIBRIL MATERIAL, STABLE FOAM SYSTEM BASED THEREON, PREPARATION METHOD AND APPLICATION THEREOF
    Publication number: 20210214509
    Abstract: A lignocellulose nanofibril material, a stable foam system based thereon, a preparation method and an application thereof are provided. The lignocellulosic nanofibril material includes the following components: 0.5-20 wt % of wood flour, 0.1-10 wt % of (2,2,6,6-tetramethylpiperidin-1-yl)oxidanyl, 2-25 mmol/g of an oxidant, 6-15 wt % of NaBr, and the remaining is water. The stable foam system based on the lignocellulosic nanofibril material includes: 0.1-1.0 wt % of the lignocellulosic nanofibril material, 0.2-1.0 wt % of a surfactant, 0.1-10 wt % of sodium chloride, 0.1-1.0 wt % of calcium chloride, 0.1-1.0 wt % of magnesium chloride, 0.1-1.0 wt % of sodium sulfate, and a balance of water.
    Type: Application
    Filed: April 15, 2019
    Publication date: July 15, 2021
    Applicants: Southwest Petroleum University, Tianjin University of Science and Technology
    Inventors: Bing WEI, Yangbing WEN, Yuanyuan WANG, Wanfen PU, Shengen CHEN