发明名称 |
METHOD OF MAKING FREE-STANDING POLYIMIDE FILM |
摘要 |
<p>Disclosed is a method of making a free-standing polyimide film. A solution is prepared of a polyamic acid 20 to 98% imidized in an organic solvent and a coating of the solution is applied to a non-stick substrate. The coating is heated to a temperature high enough to evaporate all but 1 to 20 wt % of the solvent and form a film. The film is removed from the substrate and is heated to evaporate the solvent to less than 1000 ppm.</p> |
申请公布号 |
EP0880555(B1) |
申请公布日期 |
2000.03.08 |
申请号 |
EP19960940335 |
申请日期 |
1996.11.12 |
申请人 |
OCCIDENTAL CHEMICAL CORPORATION |
发明人 |
CHOI, JIN-O |
分类号 |
B29C41/24;B29K77/00;B29L7/00;C08G73/10;C08J5/18;C09J179/08;(IPC1-7):C08J5/18;C08L79/08 |
主分类号 |
B29C41/24 |
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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