发明名称 |
Aromatic diamine intermediates useful in the preparation of polyimide |
摘要 |
Disclosed are a novel aromatic diamine; a polymide comprising 1,3-bis(3-aminobenzoyl)benzene or 4,4'-bis(3-aminobenzoyl)biphenyl as a diamine component and having recurring structural units represented by the formula (III): <IMAGE> (III) wherein R is a tetravalent radical selected from the group consisting of an aliphatic radical having from 2 to 27 carbon atoms, alicyclic radical, monoaromatic radical, condensed polyaromatic radical, and noncondensed aromatic radical connected each other with a direct bond or a bridge member, and X is a divalent radical of <IMAGE> and a polyimide having a terminal aromatic group which is essentially unsubstituted or substituted with a radical having no reactivity with amines or dicarboxylic acid anhydrides or a composition comprising said polyimide.
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申请公布号 |
US5322962(A) |
申请公布日期 |
1994.06.21 |
申请号 |
US19930059758 |
申请日期 |
1993.05.12 |
申请人 |
MITSUI TOATSU CHEMICALS, INC. |
发明人 |
TAMAI, SHOJI;YAMAGUCHI, KEIZABURO;ISHIHARA, YUKO;KAWASHIMA, SABURO;OIKAWA, HIDEAKI;KATAOKA, TOSHIYUKI;YAMAGUCHI, AKIHIRO |
分类号 |
C07C225/22;C08G73/10;(IPC1-7):C07C225/22 |
主分类号 |
C07C225/22 |
代理机构 |
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代理人 |
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地址 |
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