Patents by Inventor Hung-Cheng Yin

Hung-Cheng Yin 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).

  • Facile and effective method of preparing 1,4-bis(chlorodifluoromethyl)benzene
    Patent number: 8816139
    Abstract: The present invention relates to a facile method of preparing 1,4-bis(chlorodifluoromethyl)benzene, comprising the steps of: (A) providing a reactant liquid of 1,4-bis(difluoromethyl)benzene; optionally (B) providing a light source for UV radiation; and (C) introducing chlorine gas into the reactant liquid at a temperature of 50-90° C. under a pressure above 1 atm to obtain 1,4-Bis(chlorodifluoromethyl)benzene. The invented facile method can be utilized in a batch process or a continuous process for effective production of 1,4-bis(chlorodifluoromethyl)benzene.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: August 26, 2014
    Assignees: Yuan-Shin Materials Technology Corp., Chung-Shan Institute of Science and Technology, Armaments Bureau, M.N.D.
    Inventors: Chun Hsu Lin, Hung Cheng Yin, Chien Yi Sun, Yung Yu Yin, Chuan Yu Chou
  • FACILE AND EFFECTIVE METHOD OF PREPARING 1,4-BIS(CHLORODIFLUOROMETHYL)BENZENE
    Publication number: 20130116482
    Abstract: The present invention relates to a facile method of preparing 1,4-bis(chlorodifluoromethyl)benzene, comprising the steps of: (A) providing a reactant liquid of 1,4-bis(difluoromethyl)benzene; optionally (B) providing a light source for UV radiation; and (C) introducing chlorine gas into the reactant liquid at a temperature of 50-90° C. under a pressure above 1 atm to obtain 1,4-Bis(chlorodifluoromethyl)benzene. The invented facile method can be utilized in a batch process or a continuous process for effective production of 1,4-bis(chlorodifluoromethyl)benzene.
    Type: Application
    Filed: May 22, 2012
    Publication date: May 9, 2013
    Applicants: Chung-shan Institute of Science and Technology. Armaments Bureau. M.N.D., Yuan-Shin Materials Technology Corp.
    Inventors: Chun-Hsu LIN, Hung-Cheng Yin, Chien-Yi Sun, Yung-Yu Yin, Chuan-Yu Chou