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
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
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
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
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.