发明名称 |
Production of N-hydroxyalkyltrimellitic acid imides polymers |
摘要 |
N-Hydroxyalkyltrimellitic acid imides of high purity are prepared by reacting trimellitic acid anhydride with a monoalkanolamine in an aqueous medium comprising an amount of not less than about 0.025 liter of a certain specific solvent or solvent mixture per 1 mole of the trimellitic acid anhydride and can be advantageously used for production of their polymers having a high thermal stability and a good color tone.
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申请公布号 |
US4245086(A) |
申请公布日期 |
1981.01.13 |
申请号 |
US19780955615 |
申请日期 |
1978.10.30 |
申请人 |
TOYO BOSEKI KABUSHIKI KAISHA |
发明人 |
UNO, KEIICHI;MIYAGAWA, TAKAHITO |
分类号 |
C07D209/48;C08G73/16;(IPC1-7):C08G73/16 |
主分类号 |
C07D209/48 |
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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