Patents by Inventor Canming HOU

Canming HOU 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).

  • Low refractive index, high transparency, and abrasive type silica, preparation method and application thereof
    Patent number: 10406084
    Abstract: An abrasive type silica with low refractive index and high transparency, a preparation method and an application thereof are disclosed. The preparation method of the present invention includes the following steps: S1, a sodium sulfate solution is added into a reaction tank, the solution is heated to 80-95° C., a sodium silicate solution and a sulfuric acid solution are added at the same time while stirring, the dropping rate of the sodium silicate solution is controlled at 13-15 m3/h, the dropping rate of the sulfuric acid solution is controlled to ensure that the pH value of the reaction process is 3.0-4.5, and stirring is continued for 10-15 min after the adding is finished; and S2, the formed silica is filter pressed, washed, spray-dried and airflow crushed to prepare the abrasive type silica with low refractive index and high transparency.
    Type: Grant
    Filed: November 4, 2018
    Date of Patent: September 10, 2019
    Assignee: GUANGZHOU FEIXUE MATERIAL TECHNOLOGY CO., LTD.
    Inventors: Wenxi Tuo, Yingguang Lin, Wenying Gao, Fei Hu, Canming Hou
  • Low Refractive Index, High Transparency, and Abrasive Type Silica, Preparation Method and Application Thereof
    Publication number: 20190133901
    Abstract: An abrasive type silica with low refractive index and high transparency, a preparation method and an application thereof are disclosed. The preparation method of the present invention includes the following steps: S1, a sodium sulfate solution is added into a reaction tank, the solution is heated to 80-95° C., a sodium silicate solution and a sulfuric acid solution are added at the same time while stirring, the dropping rate of the sodium silicate solution is controlled at 13-15 m3/h, the dropping rate of the sulfuric acid solution is controlled to ensure that the pH value of the reaction process is 3.0-4.5, and stirring is continued for 10-15 min after the adding is finished; and S2, the formed silica is filter pressed, washed, spray-dried and airflow crushed to prepare the abrasive type silica with low refractive index and high transparency.
    Type: Application
    Filed: November 4, 2018
    Publication date: May 9, 2019
    Applicant: GUANGZHOU FEIXUE MATERIAL TECHNOLOGY CO .,LTD.
    Inventors: Wenxi TUO, Yingguang LIN, Wenying GAO, Fei HU, Canming HOU