Patents by Inventor Jianzhang DAI

Jianzhang DAI 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).

  • Silicone oil-treated fumed silica, manufacturing method and application thereof
    Patent number: 11254821
    Abstract: A silicone oil-treated fumed silica and a method of producing the silicone oil-treated fumed silica are provided. The silicone oil-treated fumed silica, which has the following physical properties: A) the silicone oil-treated fumed silica has a degree of hydrophobicity of 68 vol % or more; B) the silicone oil-treated fumed silica has a silicone oil fixation rate of from 60 mass % to 95 mass %; and C) a composition obtained by adding 6 parts by mass of the silicone oil-treated fumed silica to 100 parts by mass of an amine composition containing trimethylolpropane polyoxypropylene triamine and 1,3-bis(aminomethyl)cyclohexane at a mass ratio of 95:5 has a viscosity of 4,000 mPa·s or more after the composition is left to stand at 25° C. for 1 hour.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: February 22, 2022
    Inventors: Takayuki Maehara, Qingtao Zhou, Jianzhang Dai
  • SILICONE OIL-TREATED FUMED SILICA, MANUFACTURING METHOD AND APPLICATION THEREOF
    Publication number: 20210115262
    Abstract: A silicone oil-treated fumed silica and a method of producing the silicone oil-treated fumed silica are provided. The silicone oil-treated fumed silica, which has the following physical properties: A) the silicone oil-treated fumed silica has a degree of hydrophobicity of 68 vol % or more; B) the silicone oil-treated fumed silica has a silicone oil fixation rate of from 60 mass % to 95 mass %; and C) a composition obtained by adding 6 parts by mass of the silicone oil-treated fumed silica to 100 parts by mass of an amine composition containing trimethylolpropane polyoxypropylene triamine and 1,3-bis(aminomethyl)cyclohexane at a mass ratio of 95:5 has a viscosity of 4,000 mPa·s or more after the composition is left to stand at 25° C. for 1 hour.
    Type: Application
    Filed: March 27, 2018
    Publication date: April 22, 2021
    Inventors: Takayuki MAEHARA, Qingtao ZHOU, Jianzhang DAI