Patents Assigned to Taiwan Salt Industrial Corporation
  • Method for preparing three types of benzidine compounds in a specific ratio
    Patent number: 7183437
    Abstract: A method for preparing three types of benzidine compounds in a specific ratio, the method uses two types of diphenylamine compounds and one type of biphenyldihalide compound in a specific ratio as reactants to mix with an organic solvent and an additive to synthesize benzidine compounds in one step. The synthesized three types of benzidine compounds specially perform in a designated mixturing ratio having excellent photoelectric characteristics for a charge transporting layer in an organic photo-conductive drum.
    Type: Grant
    Filed: October 9, 2003
    Date of Patent: February 27, 2007
    Assignees: Labeltek Inc., Taiwan Salt Industrial Corporation
    Inventors: Chun-Liang Lai, Kuan-Chieh Tseng, Chia-Hung Yeh, Ling Lu, Charng-Lih Jeng, Shyue-Ming Jang, Bang-I Liou, Chyuan Juang, Yuan-Szu Chang, Po-Han Huang