| 发明名称 |
Polyimide resin and insulating film for electric and electronic devices. |
| 摘要 |
<p>A polyimide resin having a repeating unit of the formula: <CHEM> wherein R1 is a tetravalent organic group constituting a tetracarboxylic acid or its derivative, wherein four atoms directly bonded to the four carbonyl groups are carbon atoms having no unsaturated bond, and R2 is a bivalent organic group constituting a diamine.</p> |
| 申请公布号 |
EP0323644(B1) |
申请公布日期 |
1994.03.23 |
| 申请号 |
EP19880121856 |
申请日期 |
1988.12.29 |
| 申请人 |
NISSAN CHEMICAL INDUSTRIES LTD. |
发明人 |
KOHTOH, NORIAKI NISSAN CHEMICAL INDUSTRIES LTD.;KOBAYASHI, TAKASHI NISSAN CHEMICAL INDUSTRIES LTD.;YUKAWA, MASAHIKO NISSAN CHEMICAL INDUSTRIES LTD. |
| 分类号 |
C08G73/10;H01B3/30;H01L23/29;H01L23/556;H01L29/51;(IPC1-7):C08G73/10;H01L29/06 |
主分类号 |
C08G73/10 |
| 代理机构 |
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