Patents Assigned to Chia-Fen Lee
  • Patent number: 9777125
    Abstract: This invention is related to a method for producing polymer latex particle coated with silver nanoparticles. First, a polymer latex particle suspension is mixed with a silver nitrate solution in a weight ratio of 10:1 to 1:10 at 50° C. to 90° C. for 10 to 120 minutes to form a mixed solution. After the temperature of the mix solution is cooled to 50° C. to 85° C., a sodium citrate solution is added to react with the mixed solution for 10 to 240 minutes to form a polymer latex particle coated with silver nanoparticles, which has antibacterial activity.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: October 3, 2017
    Assignees: Nerd Skincare Inc., Chia-Fen Lee
    Inventors: Ying-Tung Chen, Chia-Fen Lee, Yu-Syuan Chang, Kuen-Lin Leu