发明名称 |
Preparation of poly-O-hydroxyamides and poly O-mercaptoamides |
摘要 |
In a process for the preparation of poly-o-hydroxyamides and poly-o-mercaptoamides, a bis-o-aminophenol or a bis-o-aminothiophenol is reacted with a dicarboxylic acid derivative with the following structure: M-CO-R*-CO-M where M stands for the residue of an (optionally substituted) 2-hydroxybenzoxazole, 2-hydroxybenzothiazole, or 1-hydroxybenzotriazole or of corresponding mercapto compounds and R* is the parent body of the dicarboxylic acid.
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申请公布号 |
US5807969(A) |
申请公布日期 |
1998.09.15 |
申请号 |
US19960705099 |
申请日期 |
1996.08.28 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
SEZI, RECAI;AHNE, HELLMUT;KUEHN, EBERHARD;GESTIGKEIT, ROLAND |
分类号 |
C08G69/26;C08G69/28;C08G69/32;C08G73/22;C08G75/32;G03F7/038;(IPC1-7):C08G73/10;C08G75/04 |
主分类号 |
C08G69/26 |
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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