Patents by Inventor Jiangwen XU

Jiangwen 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).

  • Composition of nano-emulsion having small particle size and ultra-low concentration and a preparation method thereof
    Patent number: 10800892
    Abstract: A nano-emulsion composition having a small particle size and ultra-low concentration and a preparation method thereof is disclosed. The raw materials of the composition comprise, in terms of percentage by weight, 0.002% to 0.2% of a polymer-containing homogeneous microemulsion, water, and 99.998% to 99.8% of an organic salt solution or inorganic salt solution. The composition is prepared by diluting a polymer-containing homogeneous microemulsion with water or a salt solution. The polymer-containing homogeneous microemulsion is formed by mixing the following raw materials, in terms of percentage by weight: 8% to 40% of a surfactant, 0.5% to 10% of a polymer, 10% to 30% of an alcohol, 3% to 30% of an oil, 0% to 20% of a salt, and balance of water. The composition of the invention is low in concentration, low in cost, narrow in particle size distribution, good in stability, simple in preparation, and convenient for storage and use.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 13, 2020
    Assignees: China University of Petroleum-Beijing, KMS OIL FIELD CHEMICALS & TECHNICAL SERVICES LTD., Zhong Shi Da Engineering Research Center Co. Ltd., PetroChina Company Limited
    Inventors: Fujian Zhou, Erdong Yao, Jiangwen Xu, Zhao Luo, Yuan Li, Xiuhui Li, Jiaxin Sun, Xiongfei Liu, Jie Zuo, Xugang Wang, Cuihong Zhou
  • COMPOSITION OF NANO-EMULSION HAVING SMALL PARTICLE SIZE AND ULTRA-LOW CONCENTRATION AND A PREPARATION METHOD THEREOF
    Publication number: 20190177491
    Abstract: A nano-emulsion composition having a small particle size and ultra-low concentration and a preparation method thereof is disclosed. The raw materials of the composition comprise, in terms of percentage by weight, 0.002% to 0.2% of a polymer-containing homogeneous microemulsion, water, and 99.998% to 99.8% of an organic salt solution or inorganic salt solution. The composition is prepared by diluting a polymer-containing homogeneous microemulsion with water or a salt solution. The polymer-containing homogeneous microemulsion is formed by mixing the following raw materials, in terms of percentage by weight: 8% to 40% of a surfactant, 0.5% to 10% of a polymer, 10% to 30% of an alcohol, 3% to 30% of an oil, 0% to 20% of a salt, and balance of water. The composition of the invention is low in concentration, low in cost, narrow in particle size distribution, good in stability, simple in preparation, and convenient for storage and use.
    Type: Application
    Filed: December 13, 2018
    Publication date: June 13, 2019
    Inventors: Fujian ZHOU, Erdong YAO YAO, Jiangwen XU, Zhao LUO, Yuan LI, Xiuhui LI, Jiaxin SUN, Xiongfei LIU, Jie ZUO, Xugang WANG, Cuihong ZHOU