Patents by Inventor Chuan-Yu Chou

Chuan-Yu Chou 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
  • 1,4-bis(bromodifluoromethyl) tetrafluorobenzene and producing method thereof
    Patent number: 7868213
    Abstract: A method for producing 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (BFTFB) is disclosed. The target compound is predicted as a very potent monomer for low dielectric constant material. This method comprises the following steps: (a) mixing 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (DFMTFB), a bromination agent, and a solvent (with or without) to form a mixture; (b) heating the mixture under UV radiation; and (c) purifying the resultant to obtain 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (BFTFB) with high purity.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: January 11, 2011
    Assignees: Yuan-Shin Materials Technology Corp, Chung-Shan Institute of Science and Technology, Armaments Bureau. M.N.D.
    Inventors: Chuan-Yu Chou, Po-Chen Chang, Chun-Hsu Lin, Shieh-Jun Wang
  • METHOD FOR PRODUCING 1,4-BIS(DIFLUOROMETHYL)TETRAFLUOROBENZENE
    Publication number: 20090171132
    Abstract: A method for producing 1,4-bis(difluoromethyl)tetrafluorobenzene is disclosed, which has the following steps: (a) mixing 1,4-bis(dichloromethyl)tetrafluorobenzene, a catalyst, an aprotic polar solvent, and an alkali metal fluoride to form a reaction mixture; (b) heating the reaction mixture; and (c) purifying the resultant to obtain 1,4-bis(difluoromethyl)tetrafluorobenzene.
    Type: Application
    Filed: July 29, 2008
    Publication date: July 2, 2009
    Applicants: Yuan-Shin Materials Technology Corp., Chung-shan Institute of Science and Technology. Armaments Bureau. M.N.D.
    Inventors: Chun-Hsu Lin, Chac-Chou Tu, Chan-Yuan Ho, Chuan-Yu Chou, Wei-Hsiung Ou, Shieh-Jun Wang
  • 1, 4-bis (bromodifluoromethyl ) tetrafluorobenzene and producing method thereof
    Publication number: 20090171130
    Abstract: A method for producing 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (BFTFB) is disclosed. The target compound is predicted as a very potent monomer for low dielectric constant material. This method comprises the following steps: (a) mixing 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (DFMTFB), a bromination agent, and a solvent (with or without) to form a mixture; (b) heating the mixture under UV radiation; and (c) purifying the resultant to obtain 1,4-bis(bromodifluoromethyl)tetrafluorobenzene (BFTFB) with high purity.
    Type: Application
    Filed: July 29, 2008
    Publication date: July 2, 2009
    Applicants: Chung-shan Institute of Science and Technology. Armaments Bureau. M.N.D., Yuan-Shin Materials Technology Corp.
    Inventors: Chuan-Yu Chou, Po-Chen Chang, Chun-Hsu Lin, Shieh-Jun Wang
  • Method for producing 1,4-bis(difluoromethyl)tetrafluorobenzene
    Patent number: 7544846
    Abstract: A method for producing 1,4-bis(difluoromethyl)tetrafluorobenzene is disclosed, which has the following steps: (a) mixing 1,4-bis(dichloromethyl)tetrafluorobenzene, a catalyst, an aprotic polar solvent, and an alkali metal fluoride to form a reaction mixture; (b) heating the reaction mixture; and (c) purifying the resultant to obtain 1,4-bis(difluoromethyl)tetrafluorobenzene.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: June 9, 2009
    Assignees: Yuan-Shin Materials Technology Corp., Chung-Shan Institute of Science and Technology, Armaments Bureau, M.N.D.
    Inventors: Chun-Hsu Lin, Chac-Chou Tu, Chan-Yuan Ho, Chuan-Yu Chou, Wei-Hsiung Ou, Shieh-Jun Wang
  • Iridium complex and electroluminescent device using the same
    Publication number: 20060263630
    Abstract: An iridium complex is used as a phosphorescent material in an organic electroluminescence (OEL). Use this complex as the red light guest dopant emitter of the phosphorescent material, then apply the phosphorescent material to the OEL light-emitting layer, a red light that is very close to pure red can be achieved. In addition, the iridium complex can increase the thermal stability of the OEL, due to their high conjugated structure.
    Type: Application
    Filed: May 23, 2005
    Publication date: November 23, 2006
    Inventors: Chan-Yuan Ho, Sung-Cheng Hu, Tsair-Feng Lin, Chih-An Wang, Yun-Chin Ho, Chuan-Yu Chou