发明名称 |
Mixed substance of triphenylamine dimers |
摘要 |
The present invention intends to provide a TPD derivative being excellent in electric properties as a compound due to its extremely less content of impurities (TPD analogues) as well as being excellent in film-forming property due to its low crystallinity. The TPD derivative is a mixed substance of triphenylamine dimers which contains at least the compound represented by formula B:
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申请公布号 |
US6811940(B2) |
申请公布日期 |
2004.11.02 |
申请号 |
US20020246739 |
申请日期 |
2002.09.19 |
申请人 |
ORIENT CHEMICAL INDUSTRIES, LTD. |
发明人 |
KITA YOSHIO;YAMASAKI YASUHIRO |
分类号 |
C07B61/00;C07C209/10;C07C211/54;G03G5/05;G03G5/06;(IPC1-7):G03G5/047;H01B1/00 |
主分类号 |
C07B61/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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