Patents Assigned to China Petrochemical Development Corp.
  • Carbazole derivatives and organic light-emitting diode device using the same
    Patent number: 8580396
    Abstract: The present invention relates to novel carbazole derivatives and an organic light-emitting diode device using the same. These carbazole derivatives can simultaneously or singly be used as a hole transporting layer, a host or guest of an emitting layer or an electron transporting layer of an organic light-emitting diode device.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: November 12, 2013
    Assignee: China Petrochemical Development Corp
    Inventors: Hsiao Chan Liu, Min Sheng Chen, Chin Yi Lee
  • Process for producing organic carboxylic acid amides
    Patent number: 8519187
    Abstract: The present invention relates to a process for producing organic carboxylic acid amides by nitrile hydrolysis of a nitrile compound at certain temperature and pressure in the presence of a catalyst to produce an organic carboxylic acid amide.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: August 27, 2013
    Assignee: China Petrochemical Development Corp
    Inventors: Chia Hui Shen, Chin Yi Lee, Chia Jung Tsai
  • Quinoxaline derivatives and their use in organic light-emitting diode device
    Patent number: 8460801
    Abstract: The present invention relates to novel quinoxaline derivatives and their use in an organic light-emitting diode device. The quinoxaline derivative is of luminescence and rigidity, can increase glass transition temperature (Tg) and has better thermal stability, and thus can be used as a hole transporting layer, a host or guest of an emitting layer or an electron transporting layer of an organic light-emitting diode device.
    Type: Grant
    Filed: June 8, 2010
    Date of Patent: June 11, 2013
    Assignee: China Petrochemical Development Corp
    Inventors: Min Sheng Chen, Yue Lin Du, Hsiao-Chan Liu
  • Process for producing carboxylic acid
    Patent number: 6346644
    Abstract: The present invention relates to an improved process for producing an organic carboxylic acid having (n+1) carbon atoms by reacting an alcohol having n carbon atoms with carbon monoxide in the presence of a rhodium catalyst system. More particularly, the present invention relates to carbonylation of alcohol such as methanol catalyzed by a rhodium system to produce acetic acid. The characteristic of the present invention is the addition of a catalyst stabilizer in the reaction medium to avoid or to alleviate the precipitation of the catalyst in the liquid phase. The catalyst stabilizer as used herein is a pyridine derivative having substituent(s) of such as (CH2)mCOOR or (CH2)mSO3R (R═H or hydrocarbons; m=0-6).
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: February 12, 2002
    Assignee: China Petrochemical Development Corp.
    Inventors: Kuo-Chen Shih, Shu-Hei Wang, Tsu-Tseng Weng, Kou-Suein Ai
  • Preparation of catalyst system for the synthesis of 2-6-xylenol
    Patent number: 4546093
    Abstract: A process for preparing a 3-component catalyst system consisting of manganic oxide, ferric oxide and zinc oxide, which are adjusted to have an atomic ratio of Mn:Fe:Zn from 90:20:20 to 99:0.01:0.01, is used for the catalytic synthesis of 2,6-xylenol from reacting phenol with methanol.
    Type: Grant
    Filed: July 5, 1984
    Date of Patent: October 8, 1985
    Assignee: China Petrochemical Development Corp.
    Inventors: Kong R. Chang, Trong G. Lin