发明名称 |
Method for preparing polyimide and polyimide prepared thereby |
摘要 |
A method for preparing a polyimide includes introducing a mixture of an oligomer and a solvent to an extruder, removing solvent via at least one extruder vent, and melt kneading the oligomer to form a polyimide. The polyimide has a low residual solvent content. The method is faster than solution polymerization of polyimides, and it avoids the stoichiometric inaccuracies associated with reactive extrusion processes that use monomers as starting materials.
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申请公布号 |
US2005080228(A1) |
申请公布日期 |
2005.04.14 |
申请号 |
US20030683226 |
申请日期 |
2003.10.10 |
申请人 |
SILVI NORBERTO;GIAMMATTEI MARK HOWARD;HOWSON PAUL EDWARD;KHOURI FARID FOUAD |
发明人 |
SILVI NORBERTO;GIAMMATTEI MARK HOWARD;HOWSON PAUL EDWARD;KHOURI FARID FOUAD |
分类号 |
C08G73/10;(IPC1-7):C08G69/08 |
主分类号 |
C08G73/10 |
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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