| 发明名称 |
Anhydrides and their polyimide derivatives |
| 摘要 |
<p>An acid anhydride of the formula (4), and a polyimide using the acid anhydride, <CHEM> wherein anhydrides are substituted at sites 3 or sites 4, which acid anhydride is obtained from, as a raw material, a bifunctional phenylene ether oligomer having a number average molecular weight of 500 to 3,000, represented by the formula (1). <CHEM></p> |
| 申请公布号 |
EP1489079(B1) |
申请公布日期 |
2006.08.16 |
| 申请号 |
EP20040253686 |
申请日期 |
2004.06.18 |
| 申请人 |
MITSUBISHI GAS CHEMICAL COMPANY, INC. |
发明人 |
OHNO, DAISUKE;ISHII, KENJI;NORISUE, YASUMASA;MIZUKAMI, MASAMICHI;HIRASHIMA, ATSUSHI |
| 分类号 |
C07D307/89;C08G65/26;C07C65/24;C08F283/04;C08G65/333;C08G73/00;C08G73/10 |
主分类号 |
C07D307/89 |
| 代理机构 |
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