发明名称 |
Process for producing polyimide platy object |
摘要 |
A process for producing a polyimide platy object includes (a) providing a solution containing a solvent and a solute (i.e., a polyimide precursor or polyimide); (b) pouring the solution onto a supporting member; (c) removing a portion of the solvent from the solution at a first temperature lower than boiling point of the solvent, thereby forming a precursory platy object thereon, the precursory platy object having a self-supporting property and a first surface in contact with the supporting member and a second surface away therefrom and a first content of the solvent at the first surface and a second content (less than the first content by 2-10 wt %) of the solvent at the second surface; and (d) detaching the precursory platy object therefrom; and (e) heating the precursory platy object at a second temperature higher than boiling point of the solvent and is lower than decomposition temperature of the polyimide.
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申请公布号 |
US2002123610(A1) |
申请公布日期 |
2002.09.05 |
申请号 |
US20020078265 |
申请日期 |
2002.02.20 |
申请人 |
MOROI YOSHIHIRO;NANAI HIDEHISA;YAMAMOTO YUJI;SAKAGUCHI SHIGEKI |
发明人 |
MOROI YOSHIHIRO;NANAI HIDEHISA;YAMAMOTO YUJI;SAKAGUCHI SHIGEKI |
分类号 |
B29C41/00;B29C41/12;B29C67/24;(IPC1-7):B32B27/00 |
主分类号 |
B29C41/00 |
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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