| 发明名称 |
3,6-Di(3',5'-bis(fluoroalkyl) phenyl) pyromellitic dianhydride and method for the preparation thereof |
| 摘要 |
The present invention relates to fluorine-containing 3,6-di(3',5'-bis(trifluoromethyl)benzene)pyromellitic dianhydride as a monomer which can be used in preparing polyimides with high glass transition temperature, low dielectric constant and excellent processability, and preparing method thereof.
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| 申请公布号 |
US6433190(B1) |
申请公布日期 |
2002.08.13 |
| 申请号 |
US20010828974 |
申请日期 |
2001.04.10 |
| 申请人 |
KWANGJU INSTITUTE OF SCIENCE AND TECHNOLOGY |
发明人 |
YOON TAE-HO;MYUNG BUM-YOUNG |
| 分类号 |
C07D493/04;C07B61/00;C07C51/285;C07C63/68;C07D493/06;C08G73/10;(IPC1-7):C07D493/02 |
主分类号 |
C07D493/04 |
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