Patents Assigned to Headway Advanced Materials Co., Ltd
  • Preparation method for nanometer grade zinc oxide crystalline (zincite) sol
    Patent number: 7528177
    Abstract: An environmentally friendly method for preparing zinc oxide (zincite) nanoparticle sol having more than 90% visible light transmission at 20 wt % solid; comprises of the neutralizing, under specific pH, an inorganic zinc salt with an inorganic alkali, both dissolved in ethylene glycol, and thermally aging the precipitates afterward.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: May 5, 2009
    Assignee: Headway Advanced Materials Co., Ltd
    Inventors: Anthony Shiaw-Tseh Chiang, Chih-Tsung Hsu, Ching-Ping Yang
  • Preparation method for nanometer grade zinc oxide crystalline (zincite) sol
    Publication number: 20060222586
    Abstract: An environmentally friendly method for preparing zinc oxide (zincite) nanoparticle sol having more than 90% visible light transmission at 20 wt % solid; comprises of the neutralizing, under specific pH, an inorganic zinc salt with an inorganic alkali, both dissolved in ethylene glycol, and thermally aging the precipitates afterward.
    Type: Application
    Filed: September 29, 2005
    Publication date: October 5, 2006
    Applicant: Headway Advanced Materials Co., Ltd
    Inventors: Anthony Chiang, Chih-Tsung Hsu, Ching-Ping Yang